INHALTE
Publications
2012
- Steffen Hirte, Eugen Schubert, Andreas Seifert, Stephan Baumann, Daniel Klan, Kai-Uwe Sattler
Data3 - A Kinect Interface for OLAP using Complex Event Processing
ICDE, April, 2012
[Bibtex][Abstract]@Inproceedings{DBIS:BauKlaSat12+, Author = {Hirte, Steffen and Schubert, Eugen and Seifert, Andreas and Baumann, Stephan and Klan, Daniel and Sattler, Kai-Uwe}, Booktitle = {ICDE}, Month = {April}, Title = {Data3 - A Kinect Interface for OLAP using Complex Event Processing}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:BauKlaSat12+.pdf}, Year = {2012} }[Download]
Motion sensing input devices like Microsoft’s Kinect offer an alternative to traditional computer input devices like keyboards and mouses. Daily new applications using this interface appear. Most of them implement their own gesture detection. In our demonstration we show a new approach using the data stream engine AnduIN. The gesture detection is done based on AnduIN’s complex event processing functionality. This way we build a system that allows to define new and complex gestures on the basis of a declarative programming interface. On this basis our demonstration data3 provides a basic natural interaction OLAP interface for a sample star schema database using Microsoft’s Kinect. - Marcel Karnstedt, Kai-Uwe Sattler, Manfred Hauswirth
Scalable distributed indexing and query processing over Linked Data
Journal of Web Semantics, January, Number 1, Pages 3-32, Volume 10, 2012
[Bibtex][Abstract]@Article{DBIS:KarnSatHaus2012, Author = {Karnstedt, Marcel and Sattler, Kai-Uwe and Hauswirth, Manfred}, Journal = {Journal of Web Semantics}, Month = {January}, Number = {1}, Pages = {3-32}, Title = {Scalable distributed indexing and query processing over Linked Data}, Url = {http://dx.doi.org/10.1016/j.websem.2011.11.010}, Volume = {10}, Year = {2012} }[Download]
Linked Data is becoming the core part of modern Web applications and thus efficient access to structured information expressed in RDF gains paramount importance. A number of efficient local RDF stores exist already, while distributed indexing and distributed query processing over Linked Data with similar efficiency and data management features as known from traditional database and data integration systems are only starting to develop. Distributed approaches will necessarily co-exist with centralized schemes, as data will be owned by different stakeholders who may not want to provide their complete data sets to a central place. Additionally, central/integrated storage may be prohibited for organizational or legal reasons in certain areas. To support decentralized schemes, only a few attempts in this direction exist so far, but they are limited in terms of capabilities and the degree of distribution vs. efficiency, query expressivity, and scalability. To remedy this situation, the approach and proof-of-concept prototype presented in this paper provides a solution for these open challenges. As we argue for widely distributed systems as a possible answer to scalability issues, we first identify and discuss the main challenges and based on this analysis, we propose an approach for efficient and scalable query processing over distributed Linked Data sources, taking into account the latest advances in database technology. Our system is based on a layered architecture that makes use of the advantages of decentralized indexing and query processing approaches, which have been researched and matured over the last decade. Our approach is based on a logical algebra for queries over RDF data and a related physical query algebra to enable optimization, both on the logical and physical layers in query processing. The introduced operators and strategies for processing complex query plans make excessive use of parallelism and other optimization paradigms of distributed query process - Felix Beier, Torsten Kilias, Kai-Uwe Sattler
GiST Scan Acceleration using Coprocessors
Proc. of 8th Int. Workshop on Data Management on New Hardware (DaMoN 2012), Scottsdale, AZ, To appear, 2012
[Bibtex]@Inproceedings{DBIS:BeiKilSat2012, Author = {Beier, Felix and Kilias, Torsten and Sattler, Kai-Uwe}, Booktitle = {Proc. of 8th Int. Workshop on Data Management on New Hardware (DaMoN 2012), Scottsdale, AZ}, Note = {To appear}, Title = {GiST Scan Acceleration using Coprocessors}, Year = {2012} }
2011
- Felix Beier, Knut Stolze, Kai-Uwe Sattler
Autonomous Workload-driven Reorganization of Column Groupings in MMDBS
Proceedings of the 2011 IEEE 27th International Conference on Data Engineering Workshops, April, Pages 22-27, 2011, Publisher IEEE
[Bibtex][Abstract]@Inproceedings{DBIS:BeiStoSat11, Author = {Beier, Felix and Stolze, Knut and Sattler, Kai-Uwe}, Booktitle = {Proceedings of the 2011 IEEE 27th International Conference on Data Engineering Workshops}, ISBN = {978-1-4244-9194-0}, Month = {April}, Pages = {22-27}, Title = {Autonomous Workload-driven Reorganization of Column Groupings in MMDBS}, Url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=05767654}, Year = {2011}, Publisher = {IEEE} }[Download]
A current trend to achieve high query performance even for huge data warehouse and business intelligence systems is to exploit main-memory-based processing techniques such as compression, cache-conscious strategies, and optimized data structures. However, update processing and skews in data distribution might lead to degenerations in such densely packed and highly compressed data structures affecting the memory efficiency and query performance negatively. Thus, reorganization tasks for repairing these data structures are necessary but should be carefully applied in order to not impact query execution or even system availability significantly. In this paper, we consider the special problem of tuple layout in banked storage structures. Based on runtime statistics capturing typical access patterns in the current workload, we present a bank reassignment approach that can be piggybacked to maintenance tasks without any administration overhead. We have implemented this approach in IBM Smart Analytics Optimizer (ISAOPT). The results of our experimental evaluation show that a simple automatic restructuring of the considered hybrid row-column-store structures offers opportunities to improve query runtimes when a slight memory overhead is acceptable. - H. Betz, D. Klan, K.-U. Sattler
(Semi-)Automatische Anotation von Textdokumenten (Work in Progress )
LWA (FG-KDML), September, 2011
[Bibtex][Abstract]@Techreport{DBIS:BetKlaSat11, Author = {Betz, H. and Klan, D. and Sattler, K.-U.}, Booktitle = {LWA (FG-KDML)}, Month = {September}, Title = {(Semi-)Automatische Anotation von Textdokumenten (Work in Progress )}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:BetKlaSat11.pdf}, Year = {2011} }[Download]
Das Erfassen der Bedeutung von geschriebener oder gesprochener Sprache ist bis heute einer der gr ̈ ßten Herausforderung in der Informatik. F ̈ r o u eine effiziente computergest ̈ tzte Analyse und u Suche ist diese aber unumg ̈ nglich. Bis heute ist a es nicht m ̈ glich Informationen in ausreichender o Qualit ̈ t vollst ̈ ndig automatisch auf ihre Bedeu- a a tung hin zu analysieren und entsprechend zu an- notieren. H ̈ ufig wird daher auf teilautomatische a Systeme zur ̈ ckgegriffen, welche eine Nutzer- u interaktion erfordern. In der folgenden Arbeit wollen wir zwei neue Ans ̈ tze zur automatischen a Annotation von Dokumenten pr ̈ sentieren. - D. Klan, St. Hagedorn, St. Hirte, H. Betz, F. Kassem, K.-U. Sattler
Topiek - Dokumentenmanagementsystem trifft semantisches Web (Demonstration)
LWA (FG-KDML), September, 2011
[Bibtex][Abstract]@Techreport{DBIS:KlaHagHir11, Author = {Klan, D. and Hagedorn, St. and Hirte, St. and Betz, H. and Kassem, F. and Sattler, K.-U.}, Booktitle = {LWA (FG-KDML)}, Month = {September}, Title = {Topiek - Dokumentenmanagementsystem trifft semantisches Web (Demonstration)}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaHagHir11.pdf}, Year = {2011} }[Download]
Die Verwaltung großer Datenmengen ist heute eine der wesentlichen Aufgaben im Unternehmensumfeld. Insbesondere das Wiederfinden relevanter und interessanter Informationen gestaltet sich dabei als Herausforderung. Im Folgenden soll mit Topiek ein System vorgestellt werden, welches zu diesem Zweck die Funktionalität herkömmlicher Dokumentenmanagementsysteme um Techniken aus dem Bereich des semantischen Webs erweitert. - Knut Stolze, Felix Beier, Oliver Koeth, Kai-Uwe Sattler
Integrating Cluster-Based Main-Memory Accelerators in Relational Data Warehouse Systems
Datenbank-Spektrum, July, 2011, Publisher Springer, 1618-2162
[Bibtex][Abstract]@Article{DBIS:StoBeiKoe11+, Author = {Stolze, Knut and Beier, Felix and Koeth, Oliver and Sattler, Kai-Uwe}, Editor = {R. Schenkel; T. H{\"a}rder}, Journal = {Datenbank-Spektrum}, Month = {July}, Title = {Integrating Cluster-Based Main-Memory Accelerators in Relational Data Warehouse Systems}, Url = {http://www.springerlink.com/content/g727656075006883/}, Year = {2011}, Publisher = {Springer}, ISSN = {1618-2162} }[Download]
Today, data warehouse systems are faced with challenges for providing nearly realtime response times even for complex analytical queries on enormous data volumes. Highly scalable computing clusters in combination with parallel in-memory processing of compressed data are valuable techniques to address these challenges. In this paper, we give an overview on core techniques of the IBM Smart Analytics Optimizer -- an accelerator engine for IBM's mainframe database system DB2 for z/OS. We particularly discuss aspects of a seamless integration between the two worlds and describe techniques exploiting features of modern hardware such as parallel processing, cache utilization, and SIMD. We describe issues encountered during the development and evaluation of our system and outline current research activities for solving them. - Dang-Hoan Tran, Jin Yang, Kai-Uwe Sattler
Decentralized Change Detection in Wireless Sensor Network Using DFT-based Synopsis
MDM 2011, June, Pages 236-235, 2011
[Bibtex][Abstract]@Inproceedings{DBIS:HoaYanSat11, Author = {Tran, Dang-Hoan and Yang, Jin and Sattler, Kai-Uwe}, Booktitle = {MDM 2011}, Month = {June}, Pages = {236-235}, Title = {Decentralized Change Detection in Wireless Sensor Network Using DFT-based Synopsis}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:HoaYanSat11.pdf}, Year = {2011} }[Download]
Wireless sensor networks are often deployed to detect occurring changes in the environment. Detectability of the changes in the ambient environment contributes to the success of emerging sensor networks. The major challenges in designing change detection algorithms for wireless sensor networks are the restricted resources of sensors such as memory, communication bandwidth, and battery power. We propose a decentralized change detection framework for wireless sensor networks, present a novel algorithm using DFT coefficients as synopsis structures from signal-oriented data streams, which can reduce the amount of local memory required by the change detector while assuring accuracy of local detection. Furthermore, we show how to use a gossip-based framework for transmitting and aggregating the change detection results from the ambient area of events to the sink. This helps to find consensus among nodes in order to improve global detection accuracy while maintaining reasonable communication cost for the wireless sensor networks. We make empirical evaluations to show the effectiveness and the deployment potential of our change detection schemes in wireless sensor networks. - Felix Beier, Knut Stolze, Kai-Uwe Sattler
Online Reorganization in Read Optimized MMDBS
SIGMOD 2011, June, Pages 1125-1136, 2011, Publisher ACM
[Bibtex][Abstract]@Inproceedings{DBIS:BeiStoSat11Reorg, Author = {Beier, Felix and Stolze, Knut and Sattler, Kai-Uwe}, Booktitle = {SIGMOD 2011}, Month = {June}, Pages = {1125-1136}, Title = {Online Reorganization in Read Optimized MMDBS}, Url = {http://portal.acm.org/citation.cfm?id=1989443}, Year = {2011}, Publisher = {ACM} }[Download]
Query performance is a critical factor in modern business intelligence and data warehouse systems. An increasing number of companies uses detailed analyses for conducting daily business and supporting management decisions. Thus, several techniques have been developed for achieving near realtime response times - techniques which try to alleviate I/O bottlenecks while increasing the throughputs of available processing units, i.e. by keeping relevant data in compressed main-memory data structures and exploiting the read-only characteristics of analytical workloads. However, update processing and skews in data distribution result in degenerations in these densely packed and highly compressed data structures affecting the memory efficiency and query performance negatively. Reorganization tasks can repair these data structures, but -- since these are usually costly operations -- require a well-considered decision which of several possible strategies should be processed and when, in order to reduce system downtimes. In this paper, we address these problems by presenting an approach for online reorganization in main-memory database systems (MMDBS). Based on a discussion of necessary reorganization strategies in IBM Smart Analytics Optimizer, a read optimized parallel MMDBS, we introduce a framework for executing arbitrary reorganization tasks online, i.e. in the background of normal user workloads without disrupting query results or performance. - D. Klan, Th. Rohe, K.-U. Sattler
Quantitatives Frequent Pattern Mining in drahtlosen Sensornetzen
BTW Workshops, March, Pages 3-12, 2011
[Bibtex][Abstract]@Inproceedings{DBIS:KlaRohSat11, Author = {Klan, D. and Rohe, Th. and Sattler, K.-U.}, Booktitle = {BTW Workshops}, Month = {March}, Pages = {3-12}, Title = {Quantitatives Frequent Pattern Mining in drahtlosen Sensornetzen}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaRohSat11.pdf}, Year = {2011} }[Download]
In drahtlosen Sensornetzen ist die effiziente und möglichst sensorlokale Analyse der Daten ein wichtiger Ansatz zur Verlängerung der Batterielaufzeit der Sensoren. Neben den klassischen primitiven Analyseverfahren, wie zum Beispiel Filtern oder Aggregation, werden zunehmend auch komplexe Verfahren teilweise oder vollständig innerhalb der Grenzen der Sensornetze verarbeitet. Die vorliegende Arbeit widmet sich einem dieser Verfahren -- der Erkennung von häufig auftretenden Mustern (Frequent Itemsets) über Attributen mit kontinuierlichen Werten. Schwerpunkt ist die teilweise Auslagerung des vorgestellten Verfahrens auf die Knoten des Sensornetzes. - Knut Stolze, Felix Beier, Kai-Uwe Sattler, Sebastian Sprenger, Carlos Caballero Grolimund, Marco Czech
Architecture of a Highly Scalable Data Warehouse Appliance Integrated to Mainframe Database Systems
BTW 2011, February, Pages 628-639, 2011
[Bibtex][Abstract]@Inproceedings{DBIS:StoBeiSat11+, Author = {Stolze, Knut and Beier, Felix and Sattler, Kai-Uwe and Sprenger, Sebastian and Caballero Grolimund, Carlos and Czech, Marco}, Booktitle = {BTW 2011}, Month = {February}, Pages = {628-639}, Title = {Architecture of a Highly Scalable Data Warehouse Appliance Integrated to Mainframe Database Systems}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:Bei10.pdf}, Year = {2011} }[Download]
Main memory processing and data compression are valuable techniques to address the new challenges of data warehousing regarding scalability, large data volumes, near realtime response times, and the tight connection to OLTP. The IBM Smart Analytics Optimizer (ISAOPT) is a data warehouse appliance that implements a main memory database system for OLAP workloads using a cluster-based architecture. It is tightly integrated with IBM DB2 for z/OS (DB2) to speed up complex queries issued against DB2. In this paper, we focus on autonomic cluster management, high availability, and incremental update mechanisms for data maintenance in ISAOPT. - J. Yang, T. Simon, Ch. Mueller, D. Klan, K.-U. Sattler
Comparing and Refining Gossip Protocols for Fault Tolerance in Wireless P2P Systems
Parallel, Distributed, and Network-Based Processing, Euromicro Conference on, February, Pages 595-599, 2011
[Bibtex][Abstract]@Inproceedings{DBIS:YanSimMue+11, Author = {Yang, J. and Simon, T. and Mueller, Ch. and Klan, D. and Sattler, K.-U.}, ISBN = {978-0-7695-4328-4}, Journal = {Parallel, Distributed, and Network-Based Processing, Euromicro Conference on}, Month = {February}, Pages = {595-599}, Title = {Comparing and Refining Gossip Protocols for Fault Tolerance in Wireless P2P Systems}, Year = {2011} }
As a special type of wireless P2P systems, sensor networks are often deployed for detecting events caused by disasters. The peer-to-peer mode of the sensor system itself gets challenged either directly by damages of the disaster or by unreliable wireless links. This work explores possible failure models and compares the performance of several gossip protocols corresponding to the failures models. With further refinement of the gossip protocols, the performance in the failure modes caused by disasters is improved. The evaluation of our simulation results shows that using refined gossip protocols in correspondence to the failure models, the information aggregation and dissemination speed, communication cost and the accuracy of the aggregated data can be improved. - Dang-Hoan Tran, Kai-Uwe Sattler
On Detection of Changes in Data Streams
In Proceeding of MoMM Conference 2011, December, 2011, to appear
[Bibtex][Abstract]@Inproceedings{DBIS:TranKai2011, Author = {Tran, Dang-Hoan and Sattler, Kai-Uwe}, Booktitle = {In Proceeding of MoMM Conference 2011}, Month = {December}, Note = {to appear}, Title = {On Detection of Changes in Data Streams}, Year = {2011} }
Change detection is the process of identifying di erences in the state of an object or phenomenon by observing it at di erent times. This problem has been researched and applied in many elds for a long time. However, designing and developing a change detection algorithm in sensor data streams is a challenging task due to the inherent diculties in developing change detection scheme and the restricted resources of sensor network. This paper proposes a general framework for detecting changes in sensor data streams by using data synopsis structures extracted from sensor data streams. We design and implement a speci c change detection algorithm by using Discrete Fourier Transform (DFT) to extract DFT coecients as synopsis structures. We make empirical evaluations of the proposed algorithms with both synthetic and real data to show the e ectiveness and the deployment potential of our change detection schemes in sensor data streams. - D. Klan, M. Karnstedt, K. Hose, L. Ribe-Baumann, K. Sattler
Stream Engines Meet Wireless Sensor Networks: Cost-Based Planning and Processing of Complex Queries in AnduIN, Distributed and Parallel Databases
Distributed and Parallel Databases, January, Number 1, Pages 151-183, Volume 29, 2011
[Bibtex][Abstract]@Article{DBIS:KlaKarHos+11, Author = {Klan, D. and Karnstedt, M. and Hose, K. and Ribe-Baumann, L. and Sattler, K.}, Journal = {Distributed and Parallel Databases}, Month = {January}, Number = {1}, Pages = {151-183}, Title = {Stream Engines Meet Wireless Sensor Networks: Cost-Based Planning and Processing of Complex Queries in AnduIN, Distributed and Parallel Databases}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaKarHos+11.pdf}, Volume = {29}, Year = {2011} }[Download]
Wireless sensor networks are powerful, distributed, self-organizing systems used for event and environmental monitoring. In-network query processors like TinyDB afford a user friendly SQL-like application development. Due to sensor nodes' resource limitations, monolithic approaches often support only a restricted number of operators. For this reason, complex processing is typically outsourced to the base station as a part of processing tasks. Nevertheless, previous work has shown that complete or partial in-network processing can be more efficient than the base station approach. In this paper, we introduce AnduIN, a system for developing, deploying, and running complex in-network processing tasks. Particularly, we present the query planning and execution strategies used in AnduIN, which combines sensor-local in-network processing and a data stream engine. Query planning employs a multi-dimensional cost model taking energy consumption into account and decides autonomously which query parts will be processed within the sensor network and which parts will be processed at the central instance. - Liz Ribe-Baumann
Combining Resource and Location Awareness in DHTs
OTM 2011, Part I, LNCS 7044, Pages 385-402, 2011, Publisher Springer-Verlag, Berlin Heidelberg
[Bibtex][Abstract]@Inproceedings{DBIS:Rib11, Author = {Ribe-Baumann, Liz}, Booktitle = {OTM 2011, Part I, LNCS 7044}, Editor = {R. Meersman, T. Dillon, and P. Herrero}, Pages = {385-402}, Title = {Combining Resource and Location Awareness in DHTs}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:Rib11.pdf}, Year = {2011}, Publisher = {Springer-Verlag}, Location = {Berlin Heidelberg} }[Download]
Distributed hash tables are designed to provide reliable distributed data management, but present challenges for networks in which nodes have varying characteristics such as battery or computing power. Assuming that nodes are aware of their resource availability and relative network positions, this paper presents a novel distributed hash table protocol which uses nodes’ resource levels to remove load from weak nodes, whose overuse may cause delays or failure, while using nodes’ positions to reduce cross-network traffic, which may cause unwanted network load and delays. This protocol provides nodes with links that are physically near with high resource availability, and simultaneously provides scalability and an O(log(N )) routing complexity with N network nodes. Theoretical analysis and simulated evaluation show significant decreases in the routing and maintenance overhead for weak nodes, the physical distances that lookups traverse, and unwanted node failures, as well as an increase node lifetime - S. Babu, K.-U. Sattler
Self-Managing Databases: Lessons Learned and Challenges Ahead
Data Engineering, Number 4, Pages 2, Volume 34, 2011
[Bibtex]@Article{DBIS:BabSat11, Author = {Babu, S. and Sattler, K.-U.}, Journal = {Data Engineering}, Number = {4}, Pages = {2}, Title = {Self-Managing Databases: Lessons Learned and Challenges Ahead}, Volume = {34}, Year = {2011} } - Francis Gropengießer, Kai-Uwe Sattler
Transactions a la carte -- Implementation and Performance Evaluation of Transactional Support on top of Amazon S3
DataCloud icw. IPDPS, Pages 1077 - 1086, 2011, Publisher IEEE Computer Society, Anchorage, Alaska
[Bibtex][Abstract]@Proceedings{DBIS:GroSat11, Author = {Gropengie{\ss}er, Francis and Sattler, Kai-Uwe}, Booktitle = {DataCloud icw. IPDPS}, Pages = {1077 - 1086}, Title = {Transactions a la carte -- Implementation and Performance Evaluation of Transactional Support on top of Amazon S3}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroSat11.pdf}, Year = {2011}, Publisher = {IEEE Computer Society}, Location = {Anchorage, Alaska} }[Download]
Most providers of Cloud-based database services favor availability and processing performance over consistency and hence provide only limited transaction support. Guaranteeing strict consistency is left to application developers. In this paper, we present a flexible transactional framework built on top of Amazon S3. It is intended for processing structured data under consideration of user-defined ACID guarantees ranging from non-transactional data querying and updating to full transactional data processing ensuring strict ACID properties. It supports the development of Cloud-based database applications without explicitly writing code for transactions. Instead, transactional semantics are weaved-in automatically using aspect-oriented programming techniques. In this way, application developers as well as end-users profit from transactional guarantees without having to care about them. - D. Klan, K.-U. Sattler
AnduIN: Anwendungsentwicklung für drahtlose Sensornetzwerke
Datenbank-Spektrum, Number 1, Pages 15-26, Volume 11, 2011
[Bibtex][Abstract]@Article{DBIS:KlaSat11, Author = {Klan, D. and Sattler, K.-U.}, Journal = {Datenbank-Spektrum}, Number = {1}, Pages = {15-26}, Title = {AnduIN: Anwendungsentwicklung f{\"u}r drahtlose Sensornetzwerke}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaSat11.pdf}, Volume = {11}, Year = {2011} }[Download]
Eine der größten Herausforderung bei der Anwendungsentwicklung für drahtlose Sensornetzwerke ist der effiziente Umgang mit den oftmals stark beschränkten Ressourcen. Die Entwicklung neuer Systeme gestaltet sich entsprechend aufwendig und teuer. In der vorliegenden Arbeit soll mit AnduIN ein Ansatz gezeigt werden, welcher die Entwicklung entsprechender Lösungen dahingehend vereinfacht, dass lediglich die Zielstellung beschrieben werden muss. Das System analysiert diese und entscheidet selbstständig, welcher Funktionen in welcher Form zu realisieren sind. - P. Ceravolo, M. Jarrar, C. Liu, K.-U. Sattler
Special issue on querying the data web
World Wide Web, Number -1, Pages 461-463, Volume 14, 2011
[Bibtex]@Article{DBIS:CerJarSat11, Author = {Ceravolo, P. and Jarrar, M. and Liu, C. and Sattler, K.-U.}, Journal = {World Wide Web}, Number = {-1}, Pages = {461-463}, Title = {Special issue on querying the data web}, Volume = {14}, Year = {2011} } - Francis Gropengießer, Stephan Baumann, Kai-Uwe Sattler
Cloudy Transactions: Cooperative XML Authoring on Amazon S3
BTW, Pages 307-326, 2011
[Bibtex][Abstract]@Inproceedings{DBIS:GroBauSat11, Author = {Gropengie{\ss}er, Francis and Baumann, Stephan and Sattler, Kai-Uwe}, Booktitle = {BTW}, Pages = {307-326}, Title = {Cloudy Transactions: Cooperative XML Authoring on Amazon S3}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroBauSat11.pdf}, Year = {2011} }[Download]
Over the last few years cloud computing has received great attention in the research community. Customers are entitled to rent infrastructure, storage, and even software in form of services. This way they just have to pay for the actual use of these components or services. Cloud computing also comes with great opportunities for distributed design applications, which often require multiple users to work cooperatively on shared data. In order to enable cooperation, strict consistency is necessary. However, cloud storage services often provide only eventual consistency. In this paper, we propose a system that allows for strict consistent and cooperative XML authoring in distributed environments based on Amazon S3. Our solution makes use of local and distributed transactions, which are synchronized in an optimistic fashion, in order to ensure correctness. An important contribution of this paper is the evaluation of our system in a real deployment scenario upon Amazon S3. We show the strong impact of write operations to S3 on the transaction throughput. Furthermore, we show that fragmenting data increases write performance and reduces storage costs. - A. Heuer, G. Saake, K. Sattler
Datenbanken: Implementierungstechniken
3, 2011, Publisher mitp
[Bibtex]@Book{DBIS:HeuSaaSat11, Author = {Heuer, A. and Saake, G. and Sattler, K.}, Edition = {3}, Title = {Datenbanken: Implementierungstechniken}, Year = {2011}, Publisher = {mitp} } - R. Cole, F. Funke, L. Giakoumakis, W. Guy, A. Kemper, S. Krompaß, H. Kuno, R. Nambiar, T. Neumann, M. Poess, K. Sattler, M. Seibold, E. Simon, F. Waas
The Mixed Workload CH-benCHmark
DBTest Athen, 2011, to appear
[Bibtex]@Proceedings{DBIS:ColFunGia+11, Author = {Cole, R. and Funke, F. and Giakoumakis, L. and Guy, W. and Kemper, A. and Krompa{\ss}, S. and Kuno, H. and Nambiar, R. and Neumann, T. and Poess, M. and Sattler, K. and Seibold, M. and Simon, E. and Waas, F.}, Booktitle = {DBTest Athen}, Note = {to appear}, Title = {The Mixed Workload CH-benCHmark}, Year = {2011} } - M. Kersten, A. Kemper, V. Markl, A. Nica, M. Poess, K. Sattler
Tractor Pulling on Data Warehouse
DBTest Athen, Pages 7.1-7.6, 2011
[Bibtex]@Proceedings{DBIS:KerKemMar+11, Author = {Kersten, M. and Kemper, A. and Markl, V. and Nica, A. and Poess, M. and Sattler, K.}, Booktitle = {DBTest Athen}, Pages = {7.1-7.6}, Title = {Tractor Pulling on Data Warehouse}, Year = {2011} }
2010
- D. Klan, K. Hose, M. Karnstedt, K. Sattler
Power-Aware Data Analysis in Sensor Networks
ICDE 2010, March, Pages 1125-1128, 2010
[Bibtex][Abstract]@Inproceedings{DBIS:KlaHosKar10+, Author = {Klan, D. and Hose, K. and Karnstedt, M. and Sattler, K.}, Booktitle = {ICDE 2010}, Month = {March}, Pages = {1125-1128}, Title = {Power-Aware Data Analysis in Sensor Networks}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaHosKar10+.pdf}, Year = {2010} }[Download]
Sensor networks have evolved to a powerful infrastructure component for event monitoring in many application scenarios. In addition to simple filter and aggregation operations, an important task in processing sensor data is data mining -- the identification of relevant information and patterns. Limited capabilities of sensor nodes in terms of storage and processing capacity, battery lifetime, and communication demand a power-efficient, preferably sensor-local processing. In this paper, we present AnduIN, a system for developing, deploying, and running in-network data mining tasks. The system consists of a data stream processing engine, a library of operators for sensor-local processing, a box-and-arrow editor for specifying data mining tasks and deployment, a GUI providing the user with current information about the network and running queries, and an alerter notifying the user if a better query execution plan is available. At the demonstration site, we plan to show our system in action using burst detection as example application. - Kai-Uwe Sattler
Von Mediatoren über Ontologien zu Linked Open Data-Zum Stand der Informationsintegration und -fusion aus Sicht der Life Sciences
GI Jahrestagung (1), Pages 790-790, 2010
[Bibtex]@Inproceedings{DBIS:Sat10, Author = {Sattler, Kai-Uwe}, Booktitle = {GI Jahrestagung (1)}, Pages = {790-790}, Title = {Von Mediatoren {\"u}ber Ontologien zu Linked Open Data-Zum Stand der Informationsintegration und -fusion aus Sicht der Life Sciences}, Year = {2010} } - Shivnath Babu, Kai-Uwe Sattler
Report: 5th Int'l Workshop on Self-Managing Database Systems (SMDB 2010)
IEEE Data Eng. Bull., Number 3, Pages 4-7, Volume 33, 2010
[Bibtex][Download]@Article{DBIS:BabSat10, Author = {Babu, Shivnath and Sattler, Kai-Uwe}, Journal = {IEEE Data Eng. Bull.}, Number = {3}, Pages = {4-7}, Title = {Report: 5th Int'l Workshop on Self-Managing Database Systems (SMDB 2010)}, Url = {http://sites.computer.org/debull/A10sept/smdb10-report.pdf}, Volume = {33}, Year = {2010} } - Markus Brueckner, Liz Ribe-Baumann
Decentralized, Resource-Aware Information Management and Delay Tolerant Networks in Command-and-Control
GI Jahrestagung (2), Pages 175-180, 2010
[Bibtex][Abstract]@Inproceedings{DBIS:BruRib10, Author = {Brueckner, Markus and Ribe-Baumann, Liz}, Booktitle = {GI Jahrestagung (2)}, Pages = {175-180}, Title = {Decentralized, Resource-Aware Information Management and Delay Tolerant Networks in Command-and-Control}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:BruRib10.pdf}, Year = {2010} }[Download]
A robust, decentralized information management system and reliable transport of information between disconnected agents is essential to the success of command and control activities in disaster relief scenarios. We present work-in-progress aimed at developing a distributed hash table (DHT) protocol and a delay-tolerant network that meet the specific requirements of disaster relief scenarios through, among other things, the integration of location and resource awareness. - Francis Gropengießer, Kai-Uwe Sattler
Optimistic Synchronization of Cooperative XML Authoring Using Tunable Transaction Boundaries
DBKDA, Pages 35-40, 2010, Publisher IEEE Computer Society
[Bibtex][Abstract]@Inproceedings{DBIS:GroSat10, Author = {Gropengie{\ss}er, Francis and Sattler, Kai-Uwe}, Booktitle = {DBKDA}, Pages = {35-40}, Title = {Optimistic Synchronization of Cooperative XML Authoring Using Tunable Transaction Boundaries}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroSat10.pdf}, Year = {2010}, Publisher = {IEEE Computer Society} }[Download]
Design applications, e.g., CAD or media production, often require multiple users to work cooperatively on shared data, e.g., XML documents. Using explicit transactions in such environments is difficult, because designers usually do not want to consider transactions or ACID. However, applying transactions in order to control visibility of changes or specify recovery units, is reasonable, but determining transaction boundaries must be transparent for the designer. For this reason we propose a novel approach for the automatic determination of transaction boundaries which considers the degree of cooperation designers want to achieve. Furthermore, we present an optimistic synchronization model based on the traditional backward oriented concurrency control (BOCC) algorithm, in order to synchronize the determined transactions in multi-user environments. It exploits the semantics of tree operations on XML data and enforces a correctness criterion weaker than serializability. As our evaluation shows, when multiple users work cooperatively on shared data, this model significantly reduces the number of transaction aborts in comparison to the traditional BOCC approach. - Hagen Höpfner, Kai-Uwe Sattler
Datenbank-Spektrum im Springer-Verlag
Datenbank-Spektrum, Number 1, Pages 1, Volume 10, 2010
[Bibtex]@Article{DBIS:HoeSat10, Author = {H{\"o}pfner, Hagen and Sattler, Kai-Uwe}, Journal = {Datenbank-Spektrum}, Number = {1}, Pages = {1}, Title = {Datenbank-Spektrum im Springer-Verlag}, Volume = {10}, Year = {2010} } - D. Klan, Th. Rohe, K. Sattler
Quantitatives Frequent-Pattern Mining über Datenströmen
KDML 2010, 2010
[Bibtex][Abstract]@Inproceedings{DBIS:KlaRoh10, Author = {Klan, D. and Rohe, Th. and Sattler, K.}, Booktitle = {KDML 2010}, Title = {Quantitatives Frequent-Pattern Mining {\"u}ber Datenstr{\"o}men}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaRoh10.pdf}, Year = {2010} }[Download]
Das Aufdecken unbekannter Zusammenhänge zählt zu einer der wichtigsten Aufgaben im Data Mining. Für das Problem des Frequent Pattern Mining über statischen Daten finden sich daher in der Literatur eine Vielzahl an Lösungen. Die Integration von Sensorik in nahezu jeden Lebensbereich führt allerdings zu Datenmengen, welche mittels der klassischen Verfahren zumeist nicht mehr bewältigt werden können. Ein Paradigmenwechsel hin zur Datenstrom-Verarbeitung ist oftmals unumgänglich. Ein interessantes Problem, welches im Zusammenhang mit der Verarbeitung von Sensordaten auftritt ist der prinzipiell stetige Wertebereich von Messungen. Die bekannten Lösungen sind für die Analyse von kontinuierlichen Daten über stetigen Wertebereichen nur bedingt geeignet. Im folgenden soll mit dem FP2-Stream ein entsprechendes Verfahren für die Analyse quantitativer häufiger Muster über Datenströmen präsentiert werden. - Wolfgang Lehner, Kai-Uwe Sattler
Database as a service (DBaaS)
ICDE, Pages 1216-1217, 2010
[Bibtex][Download]@Inproceedings{DBIS:LehSat10, Author = {Lehner, Wolfgang and Sattler, Kai-Uwe}, Booktitle = {ICDE}, Pages = {1216-1217}, Title = {Database as a service (DBaaS)}, Url = {http://dx.doi.org/10.1109/ICDE.2010.5447723}, Year = {2010} } - Liz Ribe-Baumann, Kai-Uwe Sattler
A small-world DHT built on generalized network coordinates
Proceedings of the 2010 EDBT/ICDT Workshops, Pages 42:1--42:6, EDBT '10, 2010, Publisher ACM
[Bibtex][Abstract]@Inproceedings{DBIS:RibSat10, Author = {Ribe-Baumann, Liz and Sattler, Kai-Uwe}, Booktitle = {Proceedings of the 2010 EDBT/ICDT Workshops}, ISBN = {978-1-60558-990-9}, Pages = {42:1--42:6}, Series = {EDBT '10}, Title = {A small-world DHT built on generalized network coordinates}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:RibSat10.pdf}, Year = {2010}, Publisher = {ACM}, DOI = {http://doi.acm.org/10.1145/1754239.1754286} }[Download]
Large-scale distributed hash tables (DHT) are typically implemented without respect to node location or characteristics, thus producing physically long routes and squandering network resources. Some systems have integrated round trip times through proximity-aware identifier selection (PIS), \proximity-aware route selection (PRS), and proximity-aware neighbor selection (PNS). While PRS and PNS tend to optimize existing systems, PIS deterministically selects node identifiers based on physical node location, leading to a loss of scalability and robustness. The trade off between the scalability and robustness gained from a DHT's randomness and the better allocation of network resources that comes with a location-aware, deterministically structured DHT make it difficult to design a system that is both robust and scalable extitand resource conserving. We present initial ideas for the construction of a small-world DHT which mitigates this trade off by retaining scalability and robustness while effectively integrating round trip times and additional node quality with the help of Vivaldi network coordinates. - Gunter Saake, Kai-Uwe Sattler
Algorithmen und Datenstrukturen - Eine Einführung mit Java (4. Aufl.)
Pages I-XVII, 1-534, 2010, Publisher dpunkt.verlag
[Bibtex][Download]@Book{DBIS:SakSat10, Author = {Saake, Gunter and Sattler, Kai-Uwe}, ISBN = {978-3-89864-663-5}, Pages = {I-XVII, 1-534}, Title = {Algorithmen und Datenstrukturen - Eine Einf{\"u}hrung mit Java (4. Aufl.)}, Url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/algoj/}, Year = {2010}, Publisher = {dpunkt.verlag} } - Hagen Höpfner, Kai-Uwe Sattler
Editorial
Datenbank-Spektrum, Number 3, Pages 119-120, Volume 10, 2010
[Bibtex]@Article{DBIS:HoeSat10a, Author = {H{\"o}pfner, Hagen and Sattler, Kai-Uwe}, Journal = {Datenbank-Spektrum}, Number = {3}, Pages = {119-120}, Title = {Editorial}, Volume = {10}, Year = {2010}, DOI = {http://dx.doi.org/10.1007/s13222-010-0030-6} } - Jin Yang, Kai-Uwe Sattler
Gossip-based Data Fusion Framework for Radio Resource Map
Proceedings of the 2010 MDM Workshops, Pages 293 - 294, MDM '10, 2010, Publisher ACM
[Bibtex][Abstract]@Inproceedings{DBIS:YangSat10, Author = {Yang, Jin and Sattler, Kai-Uwe}, Booktitle = {Proceedings of the 2010 MDM Workshops}, ISBN = {978-0-7695-4048-1}, Pages = {293 - 294}, Series = {MDM '10}, Title = {Gossip-based Data Fusion Framework for Radio Resource Map}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:YangSat10.pdf}, Year = {2010}, Publisher = {ACM}, DOI = {http://doi.acm.org/10.1145/1754239.1754286} }[Download]
In disaster scenarios, sensor networks are used to detect changes and estimate resource availability to further support the system recovery and rescue process. In this PhD thesis, sensor networks are used to detect available radio resources in order to form a global view of the radio resource map, based on locally sensed and measured data. Data fusion and harvesting techniques are employed for the generation and maintenance of this radio resource map. In order to guarantee the flexibility and fault tolerance goals of disaster scenarios, a gossip protocol is used to exchange information. The radio propagation field knowledge is closely coupled to harvesting and fusion protocols in order to achieve efficient fusing of radio measurement data. For the evaluation, simulations will be used to measure the efficiency and robustness in relation to time critical applications and various deployment densities. Actual radio data measurements within the Ilmenau area are being collected for further analysis of the map quality and in order to verify simulation results. - Andreas Harth, Katja Hose, Marcel Karnstedt, Axel Polleres, Kai-Uwe Sattler, Jürgen Umbrich
Data summaries for on-demand queries over linked data
WWW, Pages 411-420, 2010
[Bibtex][Download]@Inproceedings{DBIS:HarHosKar20, Author = {Harth, Andreas and Hose, Katja and Karnstedt, Marcel and Polleres, Axel and Sattler, Kai-Uwe and Umbrich, J{\"u}rgen}, Booktitle = {WWW}, Pages = {411-420}, Title = {Data summaries for on-demand queries over linked data}, Url = {http://doi.acm.org/10.1145/1772690.1772733}, Year = {2010} } - Ch. Lemke, K.-U. Sattler, F. Faerber, A. Zeier
Speeding Up Queries in Column Stores - A Case for Compression
DaWak, Pages 117-129, 2010
[Bibtex][Download]@Inproceedings{DBIS:LemSatFae10, Author = {Lemke, Ch. and Sattler, K.-U. and Faerber, F. and Zeier, A.}, Booktitle = {DaWak}, Pages = {117-129}, Title = {Speeding Up Queries in Column Stores - A Case for Compression}, Url = {http://dx.doi.org/10.1007/978-3-642-15105-7_10}, Year = {2010}, DOI = {http://dx.doi.org/10.1007/978-3-642-15105-7_10} } - M. Paradies, Ch. Lemke, H. Plattner, W. Lehner, K.-U. Sattler, A. Zeier, J. Krüger
How to juggle columns: an entropy-based approach for table compression
IDEAS, Pages 205-215, 2010
[Bibtex]@Inproceedings{DBIS:ParLemPla10, Author = {Paradies, M. and Lemke, Ch. and Plattner, H. and Lehner, W. and Sattler, K.-U. and Zeier, A. and Kr{\"u}ger, J.}, Booktitle = {IDEAS}, Pages = {205-215}, Title = {How to juggle columns: an entropy-based approach for table compression}, Year = {2010} } - Gunter Saake, Kai-Uwe Sattler, Andreas Heuer
Datenbanken: Konzepte und Sprachen, 4. Auflage
2010, Publisher mitp-Verlag, Redline GmbH
[Bibtex][Download]@Book{DBIS:SakSatHeu09, Author = {Saake, Gunter and Sattler, Kai-Uwe and Heuer, Andreas}, Title = {Datenbanken: Konzepte und Sprachen, 4. Auflage}, Url = {http://www.biberbuch.de/}, Year = {2010}, Publisher = {mitp-Verlag, Redline GmbH} } - Stephan Baumann, Giel de Nijs, Michael Strobel, Kai-Uwe Sattler
Flashing databases: expectations and limitations
Proceedings of the Sixth International Workshop on Data Management on New Hardware, Pages 9--18, 2010, Publisher ACM
[Bibtex][Abstract]@Inproceedings{DBIS:BauNijStr+10, Author = {Baumann, Stephan and de Nijs, Giel and Strobel, Michael and Sattler, Kai-Uwe}, Booktitle = {Proceedings of the Sixth International Workshop on Data Management on New Hardware}, ISBN = {978-1-4503-0189-3}, Pages = {9--18}, Title = {Flashing databases: expectations and limitations}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:BauNijStr+10.pdf}, Year = {2010}, Publisher = {ACM} }[Download]
Flash devices (solid state disks) promise a significant performance improvement for disk-based database processing. However, database storage structures and processing strategies originally designed for magnetic disks prevent the optimal utilization of SSDs. Based on previous work on bench-marking SSDs and a detailed discussion of I/O methods, in this paper, we analyze appropriate execution methods for database processing as well as important parameters and boundaries and present a tool which helps to derive these parameters.
2009
- Jens-Oliver Fischer, Francis Gropengießer, S Brix,
Cooperative Spatial Audio Authoring: Systems Approach and Analysis of Use Cases
Audio Engineering Society Convention 126, May, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:FisGroBri09, Author = {Fischer, Jens-Oliver and Gropengie{\ss}er, Francis and Brix, S and , }, Booktitle = {Audio Engineering Society Convention 126}, Month = {May}, Title = {Cooperative Spatial Audio Authoring: Systems Approach and Analysis of Use Cases}, Url = {http://www.aes.org/e-lib/browse.cfm?elib=14939}, Year = {2009} }[Download]
Today's audio production process is highly parallel and segregated. This is especially the case in the field of audio post production for motion pictures. The introduction of spatial audio systems like 5.1, 22.2 or Wave Field Synthesis results in even more production steps, namely the spatial authoring, to accomplish a rich experience for the audience. This paper proposes a system, which enables the audio engineers to work together on the same project. The proposed system is planned to be implemented for an existing spatial authoring software but can be utilized by any other application, which organizes its data in a tree structured way. Three major use cases, i.e. Single User, Work Space and Work Group, are introduced and analysed. - C. Franke, M. Karnstedt, D. Klan, M. Gertz, K.-U. Sattler, W. Kattanek
In-Network Detection of Anomaly Regions in Sensor Networks with Obstacles
BTW 2009, March, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:FraKarKla2008, Author = {Franke, C. and Karnstedt, M. and Klan, D. and Gertz, M. and Sattler, K.-U. and Kattanek, W.}, Booktitle = {BTW 2009}, Month = {March}, Title = {In-Network Detection of Anomaly Regions in Sensor Networks with Obstacles}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:FraKarKla2008.pdf}, Year = {2009} }[Download]
In the past couple of years, sensor networks have evolved to a powerful infrastructure component for monitoring and tracking events and phenomena in many application domains. An important task in processing streams of sensor data is the detection of anomalies, e.g., outliers or bursts, and in particular the computation of the location and spatial extent of such anomalies in a sensor network. In this paper, we present an approach that facilitates the efficient computation of such anomaly regions from sensor readings. We propose an algorithm to derive spatial regions from individual anomalous sensor readings, with a particular focus on obstacles present in the sensor network. We improve this approach by proposing a distributed in-network processing technique where the region detection is performed at the sensor nodes. We demonstrate the advantages of this strategy over a centralized processing strategy by utilizing a cost model for real sensors and sensor networks. - Francis Gropengießer
Kooperatives XML-Authoring: Integration von Workgroups in Workspace-Szenarien
Grundlagen von Datenbanken, Pages 87-91, 2009, Rostock
[Bibtex][Abstract]@Inproceedings{DBIS:Gro09, Author = {Gropengie{\ss}er, Francis}, Booktitle = {Grundlagen von Datenbanken}, Pages = {87-91}, Title = {Kooperatives XML-Authoring: Integration von Workgroups in Workspace-Szenarien}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:Gro09.pdf}, Year = {2009}, Location = {Rostock} }[Download]
Kooperatives XML-Authoring, wie es u.a. in Sounddesign-Prozessen erfolgt, findet in unterschiedlichen Systemumgebungen statt. Workgroups stellen dabei eng gekoppelte, Workspace-Szenarien hingegen lose gekoppelte Systemumgebungen dar. Für das Workgroup-Szenario haben wir in vergangenen Arbeiten bereits eine Lösung vorgeschlagen und implementiert, die einen hohen Grad an Kooperation ermöglicht. In dieser Arbeit stellen wir einen ersten Ansatz vor, wie bestehende Workgroups in Workspace-Szenarien integriert werden können. Hauptbestandteil dieses Integrationskonzepts ist ein maßgeschneidertes Versionierungssystem, welches die Synchronisierung konkurrierender Updates ermöglicht. Dieses arbeitet nicht, wie z.B. Subversion, auf der textuellen Repräsentation der XML-Daten, sondern betrachtet die Daten als Baum. Deltas zwischen verschiedenen Versionen werden aus den innerhalb einzelner Workgroups gespeicherten Transaktions-Recovery-Informationen gewonnen. Es ist daher kein aufwendiger Diff-Algorithmus notwendig. Weiterhin ermöglicht uns die Wiederverwendung der Recovery-Informationen auch Verschiebeoperationen zu unterstützen. Für die serverseitige Versionsverwaltung untersuchen wir einige ausgewählte Verfahren auf ihre Einsatztauglichkeit im Workspace-Szenario. Dabei handelt es sich um die Versionsverwaltung mit "Completed Deltas", ein referenzbasiertes Versionsmodell sowie ein Versionsstempel-Verfahren. - Kai-Uwe Sattler
Semijoin
Encyclopedia of Database Systems, Pages 2592-2595, 2009
[Bibtex]@Incollection{DBIS:Sat09a, Author = {Sattler, Kai-Uwe}, Booktitle = {Encyclopedia of Database Systems}, Pages = {2592-2595}, Title = {Semijoin}, Year = {2009}, DOI = {http://dx.doi.org/10.1007/978-0-387-39940-9_706} } - Kai-Uwe Sattler
Structured Data in Peer-to-Peer Systems
Encyclopedia of Database Systems, Pages 2863-2867, 2009
[Bibtex]@Incollection{DBIS:Sat09b, Author = {Sattler, Kai-Uwe}, Booktitle = {Encyclopedia of Database Systems}, Pages = {2863-2867}, Title = {Structured Data in Peer-to-Peer Systems}, Year = {2009}, DOI = {http://dx.doi.org/10.1007/978-0-387-39940-9_1219} } - Kai-Uwe Sattler
Data Quality Dimensions
Encyclopedia of Database Systems, Pages 612-615, 2009
[Bibtex]@Incollection{DBIS:Sat09c, Author = {Sattler, Kai-Uwe}, Booktitle = {Encyclopedia of Database Systems}, Pages = {612-615}, Title = {Data Quality Dimensions}, Year = {2009}, DOI = {http://dx.doi.org/10.1007/978-0-387-39940-9_108} } - Kai-Uwe Sattler
Distributed Query Processing
Encyclopedia of Database Systems, Pages 912-917, 2009
[Bibtex]@Incollection{DBIS:Sat09d, Author = {Sattler, Kai-Uwe}, Booktitle = {Encyclopedia of Database Systems}, Pages = {912-917}, Title = {Distributed Query Processing}, Year = {2009}, DOI = {http://dx.doi.org/10.1007/978-0-387-39940-9_704} } - A. Thiem, K.-U. Sattler
An Integrated Approach to Performance Monitoring for Autonomous Tuning
ICDE, Pages 1671-1678, 2009
[Bibtex]@Inproceedings{DBIS:ThiSat09, Author = {Thiem, A. and Sattler, K.-U.}, Booktitle = {ICDE}, Pages = {1671-1678}, Title = {An Integrated Approach to Performance Monitoring for Autonomous Tuning}, Year = {2009}, DOI = {http://dx.doi.org/10.1109/ICDE.2009.142} } - E. Chervakova, D. Klan, T. Rossbach
Energy-optimized Sensor Data Processing
EUROSSC, Pages 35-38, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:CheKlaRos09, Author = {Chervakova, E. and Klan, D. and Rossbach, T.}, Booktitle = {EUROSSC}, Pages = {35-38}, Title = {Energy-optimized Sensor Data Processing}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:CheKlaRos09.pdf}, Year = {2009} }[Download]
We consider the problem of efficient data aggregation and processing within wireless sensor networks (WSN). The system we propose allows monitoring and sensor data processing by injecting bytecode into the network. Additionally we present AnduIN, a system whose goal it is to decide which parts of a given query should be processed within the sensor network. - C. Franke, M. Karnstedt, D. Klan, M. Gertz, K.-U. Sattler, E. Chervakova
In-Network Detection of Anomaly Regions in Sensor Networks with Obstacles
Computer Science - Research and Development, Special issue, 2009
[Bibtex][Abstract]@Article{DBIS:FraKarKla09, Author = {Franke, C. and Karnstedt, M. and Klan, D. and Gertz, M. and Sattler, K.-U. and Chervakova, E.}, Journal = {Computer Science - Research and Development, Special issue}, Title = {In-Network Detection of Anomaly Regions in Sensor Networks with Obstacles}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:FraKarKla09.pdf}, Year = {2009} }[Download]
In the past couple of years, sensor networks have evolved into an important infrastructure component for monitoring and tracking events and phenomena in several, often mission critical application domains. An important task in processing streams of data generated by these networks is the detection of anomalies, e.g., outliers or bursts, and in particular the computation of the location and spatial extent of such anomalies in a sensor network. Such information is then used as an important input to decision making processes. In this paper, we present a novel approach that facilitates the efficient computation of such anomaly regions from individual sensor readings. We propose an algorithm to derive regions with a spatial extent from individual (anomalous) sensor readings, with a particular focus on obstacles present in the sensor network and the influence of such obstacles on anomaly regions. We then improve this approach by describing a distributed in-network processing technique where the region detection is performed at sensor nodes and thus leads to important energy savings. We demonstrate the advantages of this strategy over a traditional, centralized processing strategy by employing a cost model for real sensors and sensor networks. - Francis Gropengießer, Katja Hose, Kai-Uwe Sattler
An extended transaction model for cooperative authoring of XML data
Computer Science - R\&D, Number -1, Pages 85-100, Volume 24, 2009
[Bibtex][Abstract]@Article{DBIS:GroHosSat09, Author = {Gropengie{\ss}er, Francis and Hose, Katja and Sattler, Kai-Uwe}, Journal = {Computer Science - R{\&}D}, Number = {-1}, Pages = {85-100}, Title = {An extended transaction model for cooperative authoring of XML data}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroHosSat09.pdf}, Volume = {24}, Year = {2009}, DOI = {http://dx.doi.org/10.1007/s00450-009-0097-1} }[Download]
In many application scenarios, for example in design or media production processes, several authors have to work cooperatively on the same project and consequently on the same data. In this context, a frequently used data format is XML. To enable cooperative authoring of shared XML graph structures, several requirements have to be fulfilled, e.g., early visibility of updates, multi-directional information flow, and processing data in parallel. Most transaction models proposed in the literature are hardly applicable in this context. In this paper, we propose a novel transaction model based on multi-level transactions and dynamic actions that meets these requirements. We describe the transaction model as well as its formal properties and discuss issues such as synchronization and logging. - Katja Hose, Daniel Klan, Kai-Uwe Sattler
Online Tuning of Aggregation Tables for OLAP
ICDE, Pages 1679-1686, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:HosKLaSat09, Author = {Hose, Katja and Klan, Daniel and Sattler, Kai-Uwe}, Booktitle = {ICDE}, Pages = {1679-1686}, Title = {Online Tuning of Aggregation Tables for OLAP}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:HosKLaSat09.pdf}, Year = {2009} }[Download]
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing the optimal set of aggregation tables (called configuration) for a given workload. In this paper we present an online approach for adjusting the configuration dynamically to the current workload. This approach is implemented as part of an open source OLAP server and acts on the level of multidimensional MDX queries. The work presents the details of cost estimation and optimization of the system demonstrated in [10] and extends it by an online tuning strategy. - Katja Hose, Christian Lemke, Kai-Uwe Sattler
Maintenance strategies for routing indexes
Distributed and Parallel Databases, Number -1, Pages 231-259, Volume 26, 2009
[Bibtex]@Article{DBIS:HosLemSat09, Author = {Hose, Katja and Lemke, Christian and Sattler, Kai-Uwe}, Journal = {Distributed and Parallel Databases}, Number = {-1}, Pages = {231-259}, Title = {Maintenance strategies for routing indexes}, Volume = {26}, Year = {2009}, DOI = {http://dx.doi.org/10.1007/s10619-009-7048-5} } - D. Klan, K. Hose, K.-U. Sattler
Developing and deploying sensor network applications with AnduIN
DMSN, Pages 1-6, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:KlaHosSat09, Author = {Klan, D. and Hose, K. and Sattler, K.-U.}, Booktitle = {DMSN}, Pages = {1-6}, Title = {Developing and deploying sensor network applications with AnduIN}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaHosSat09.pdf}, Year = {2009} }[Download]
Wireless sensor networks have become important architectures for many application scenarios, e.g., traffic monitoring or environmental monitoring in general. As these sensors are battery-powered, query processing strategies aim at minimizing energy consumption. Because sending all sensor readings to a central stream data management system consumes too much energy, parts of the query can already be processed within the network (in-network query processing). An important optimization criterion in this context is where to process which intermediate results and how to route them efficiently. To overcome these problems, we propose AnduIN, a system addressing these problems and offering an optimizer to decide which parts of the query should be processed in-network. It also considers optimization with respect to more complex data analytics task such as burst detection. Furthermore, AnduIN offers a Web-based frontend for declarative query formulation and deployment. In this paper, we mainly focus on deployment and discuss AnduIN's components alleviating deployment and usability. - Francis Gropengießer, Katja Hose, Kai-Uwe Sattler
Ein kooperativer XMLEditor für Workgroups
BTW, Pages 600-603, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:GroHosSat09_1, Author = {Gropengie{\ss}er, Francis and Hose, Katja and Sattler, Kai-Uwe}, Booktitle = {BTW}, Pages = {600-603}, Title = {Ein kooperativer XMLEditor f{\"u}r Workgroups}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroHosSat09_1.pdf}, Year = {2009} }[Download]
In vielen Anwendungsgebieten, z.B. im Design oder in Medienproduktionsprozessen, hat sich XML als Format für den Datenaustausch etabliert. Zur Verarbeitung von XML-Daten in Mehrbenutzerumgebungen sind spezielle Werkzeuge nötig. Allerdings berücksichtigen die derzeit auf dem Markt verfügbaren Editoren nur unzureichend die Anforderungen kooperativer Arbeitsumgebungen. In dieser Arbeit wird daher ein transaktionsbasierter XML-Editor vorgestellt, der diese Anforderungen erfüllt. Er ist für den Einsatz in eng gekoppelten Systemumgebungen, auch Workgroups genannt, konzipiert. Der Editor erlaubt ein intuitives Bearbeiten von XML-Daten und macht Änderungen eines Nutzers an den Daten anderen Nutzern sehr früh zugänglich. Weiterhin ermöglicht er durch dein Einsatz eines intelligenten Sperrprotokolls einen hochgradig parallelen Arbeitsprozess. - M. Karnstedt, D. Klan, Chr. Politz, K.-U. Sattler, C. Franke
Adaptive burst detection in a stream engine
SAC, Pages 1511--1515, 2009
[Bibtex][Abstract]@Inproceedings{DBIS:KarKlaPoe09sac, Author = {Karnstedt, M. and Klan, D. and Politz, Chr. and Sattler, K.-U. and Franke, C.}, Booktitle = {SAC}, ISBN = {978-1-60558-166-8}, Pages = {1511--1515}, Title = {Adaptive burst detection in a stream engine}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KarKlaPoe09sac.pdf}, Year = {2009} }[Download]
Detecting bursts in data streams is an important and challenging task. Due to the complexity of this task, usually burst detection cannot be formulated using standard query operators. Therefore, we show how to integrate burst detection for stationary as well as non-stationary data into query formulation and processing, from the language level to the operator level. Afterwards, we present fundamentals of threshold-based burst detection. We focus on the applicability of time series forecasting techniques in order to dynamically identify suitable thresholds for stream data containing arbitrary trends and periods. The proposed approach is evaluated with respect to quality and performance on synthetic and real-world sensor data using a full-fledged DSMS.
2008
- K. Hose, D. Klan, M. Marx, K.-U. Sattler
When is it time to rethink the aggregate configuration of your OLAP server?
Proc. VLDB Endow., August, Pages 1492--1495, Volume 1, 2008
[Bibtex][Abstract]@Inproceedings{DBIS:HosKlaMar+08, Author = {Hose, K. and Klan, D. and Marx, M. and Sattler, K.-U.}, Journal = {Proc. VLDB Endow.}, Month = {August}, Pages = {1492--1495}, Title = {When is it time to rethink the aggregate configuration of your OLAP server?}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:HosKlaMar+08.pdf}, Volume = {1}, Year = {2008} }[Download]
OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this context is the view selection problem: choosing the optimal set of aggregation tables (called configuration) for a given workload. In this paper, we present a system that continuously monitors the workload and raises a quantified alert, when a better configuration is available. We address the tasks of query monitoring and view selection at the OLAP level instead of the SQL level, which simplifies the containment checks as well as rewriting and in this way helps to reduce the complexity of the backend system. At the demo we plan to show how our system works, i.e., how the system reacts upon arbitrary (interactive) workloads and how the user is alerted that a better configuration is available. - Francis Gropengießer, Jens-Oliver Fischer
Ein Aktionsmodell füur die kooperative Bearbeitung von XML-Daten
Grundlagen von Datenbanken, Pages 41-45, 2008, Apolda
[Bibtex][Abstract]@Inproceedings{DBIS:GroFis08, Author = {Gropengie{\ss}er, Francis and Fischer, Jens-Oliver}, Booktitle = {Grundlagen von Datenbanken}, Pages = {41-45}, Title = {Ein Aktionsmodell f{\"u}ur die kooperative Bearbeitung von XML-Daten}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroFis08.pdf}, Year = {2008}, Location = {Apolda} }[Download]
In vielen Anwendungsbereichen, wie z.B. im Design oder dem Medienproduktionsprozess, ist das kooperative Arbeiten mehrerer Nutzer auf einem zentralen Datenbestand unerlässlich geworden. Ein spezieller Anwendungsfall aus dem Bereich der Medienproduktion ist der Ausgangspunkt für die Betrachtungen in dieser Arbeit. Aus ihm lässt sich eine Reihe von Anforderungen ableiten. Für eine ausgewählte Menge existierender Transaktions-/Aktionsmodelle wird gezeigt, dass diese die Anforderungen nicht im vollen Maße erfüllen. In der Arbeit wird daher ein neues kooperatives Aktionsmodell vorgestellt. Die Vorteile des Modells sind die Ermöglichung eines kooperativen Arbeitsprozesses, ein voll automatisches Transaktionsrecovery, die einfache Behandlung von Konflikten, die infolge der fehlenden Serialisierbarkeit auftreten können, durch das Reset-Repeat-Prinzip sowie das Vermeiden eines nachträglichen Mischens verschiedener Versionen eines XML-Dokumentes. - Francis Gropengießer, Kai-Uwe Sattler
An Extended Cooperative Transaction Model for XML
PIKM icw. CIKM, Pages 41-48, 2008
[Bibtex][Abstract]@Inproceedings{DBIS:GroSat08, Author = {Gropengie{\ss}er, Francis and Sattler, Kai-Uwe}, Booktitle = {PIKM icw. CIKM}, Pages = {41-48}, Title = {An Extended Cooperative Transaction Model for XML}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:GroSat08.pdf}, Year = {2008} }[Download]
In many application areas, for example in design or media production processes, several authors have to work cooperatively on the same project. Thereby, a frequently used data format is XML. In this paper, we address the special requirements of cooperative working on shared XML graph structures, such as early visibility of updates, multi-directional information flow, and parallel working. Since most existing transaction models are hardly applicable, we present a novel transaction model based on multi-level transactions and dynamic actions that meets these requirements. Additional advantages of this model are appropriate concepts for transaction synchronization and resolution of conflicts. - A. Bonifati, P. K. Chrysanthis, A. M. Ouksel, K. Sattler
Distributed databases and peer-to-peer databases: past and present
SIGMOD Record, Number 1, Pages 5--11, Volume 37, 2008
[Bibtex]@article{DBIS:BonChrOuk08, Author = {Bonifati, A. and Chrysanthis, P. K. and Ouksel, A. M. and Sattler, K.}, Journal = {SIGMOD Record}, Number = {1}, Pages = {5--11}, Title = {Distributed databases and peer-to-peer databases: past and present}, Volume = {37}, Year = {2008} } - K. Hose, A. Roth, A. Zeitz, K. Sattler, F. Naumann
A Research Agenda for Query Processing in Large-Scale Peer Data Management Systems
Information Systems Journal, Pages 597--610, Volume 33, 2008
[Bibtex]@article{DBIS:HosRotZei08, Author = {Hose, K. and Roth, A. and Zeitz, A. and Sattler, K. and Naumann, F.}, Journal = {Information Systems Journal}, Pages = {597--610}, Title = {A Research Agenda for Query Processing in Large-Scale Peer Data Management Systems}, Volume = {33}, Year = {2008} } - M. Karnstedt, K. Sattler, M. Hass, M. Hauswirth, B. Sapkota, R. Schmidt
Estimating the Number of Answers with Guarantees for Structured Queries in P2P Databases (Poster)
CIKM'08, Pages 1407--1408, 2008
[Bibtex]@inproceedings{DBIS:KarSatHas08, Author = {Karnstedt, M. and Sattler, K. and Hass, M. and Hauswirth, M. and Sapkota, B. and Schmidt, R.}, Booktitle = {CIKM'08}, Pages = {1407--1408}, Title = {Estimating the Number of Answers with Guarantees for Structured Queries in P2P Databases (Poster)}, Year = {2008} } - D. Klan, M. Karnstedt, Ch. Politz, K. Sattler
Towards Burst Detection for Non-Stationary Stream Data
KDML, Pages 57--60, 2008
[Bibtex][Abstract]@Inproceedings{DBIS:KlaKarPoe08, Author = {Klan, D. and Karnstedt, M. and Politz, Ch. and Sattler, K.}, Booktitle = {KDML}, Pages = {57--60}, Title = {Towards Burst Detection for Non-Stationary Stream Data}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaKarPoe08.pdf}, Year = {2008} }[Download]
Detecting bursts in data streams is an important and challenging task, especially in stock market, traffic control or sensor network streams. Burst detection means the identification of non regular behavior within data streams. A specifically crucial challenge on burst detection is to identify bursts in the case of non-stationary data. One approach is to apply thresholds to discover such bursts. In this paper, we propose a new approach to dynamically identify suitable thresholds using techniques known from time series forecasting. We present fundamentals and discuss requirements for threshold-based burst detection on stream data containing arbitrary trends and periods. - D. Klan, K. Sattler, K. Hose, M. Karnstedt
Decentralized Managing of Replication Objects in Massively Distributed Systems,
EDBT Workshop on Data Management in Peer-to-peer systems (DaMaP'08), Pages 19--26, 2008
[Bibtex][Abstract]@Inproceedings{DBIS:KlaSatHos08, Author = {Klan, D. and Sattler, K. and Hose, K. and Karnstedt, M.}, Booktitle = {EDBT Workshop on Data Management in Peer-to-peer systems (DaMaP'08)}, Pages = {19--26}, Title = {Decentralized Managing of Replication Objects in Massively Distributed Systems,}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:KlaSatHos08.pdf}, Year = {2008} }[Download]
Data replication is a central technique to increase availability and performance of distributed systems. While offering many advantages it also requires more effort for ensuring data consistency in case of updates. In the research literature various approaches for replication management in distributed databases have been presented, but they are mostly limited either in scalability or in the consistency guarantees they provide. On the other hand, P2P systems usually provide replication support but ignore the update problem. In this paper we present a new approach for managing replicated data in wide area distributed networks. Our solution is orthogonal to the underlying infrastructure and managed in a decentralized manner. It guarantees single-master consistency and allows updates at any node of the system by combining traditional replication techniques with ideas known from P2P systems. - Gunter Saake, Kai-Uwe Sattler, Andreas Heuer
Datenbanken: Konzepte und Sprachen, 3. Auflage
2008, Publisher mitp-Verlag, Redline GmbH
[Bibtex]@Book{DBIS:SakSatHeu08, Author = {Saake, Gunter and Sattler, Kai-Uwe and Heuer, Andreas}, ISBN = {978-3-8266-1664-8}, Title = {Datenbanken: Konzepte und Sprachen, 3. Auflage}, Year = {2008}, Publisher = {mitp-Verlag, Redline GmbH} } - M. Karnstedt, K. Sattler, M. Hass, M. Hauswirth, B. Sapkota, R. Schmidt
Approximating Query Completeness by Predicting the Number of Answers in DHT-based Web Applications
Int. Workshop on Web Information and Data Management (WIDM'08), Pages 71--78, 2008
[Bibtex]@inproceedings{DBIS:KarSatHas08ws, Author = {Karnstedt, M. and Sattler, K. and Hass, M. and Hauswirth, M. and Sapkota, B. and Schmidt, R.}, Booktitle = {Int. Workshop on Web Information and Data Management (WIDM'08)}, Pages = {71--78}, Title = {Approximating Query Completeness by Predicting the Number of Answers in DHT-based Web Applications}, Year = {2008} }
2007
- K. Hose, K. Sattler
Cooperative Data Management for XML Data
Dexa, Pages 308-318, 2007
[Bibtex]@inproceedings{DBIS:HosSat07, Author = {Hose, K. and Sattler, K.}, Booktitle = {Dexa}, Pages = {308-318}, Title = {Cooperative Data Management for XML Data}, Year = {2007} } - X. Shang, K. Sattler
Processing Sequential Patterns in Relational Databases
Journal on Data Semantics, Pages 203-217, Volume VIII, 2007
[Bibtex]@article{DBIS:ShaSat07, Author = {Shang, X. and Sattler, K.}, Journal = {Journal on Data Semantics}, Pages = {203-217}, Title = {Processing Sequential Patterns in Relational Databases}, Volume = {VIII}, Year = {2007} } - K. Hose, M. Karnstedt, D. Klan, K. Sattler, J. Quasebarth
Incremental Mining for Facility Management
KDML 2007: Knowledge Discovery, Data Mining, and Machine Learning, Pages 183-190, 2007
[Bibtex][Abstract]@Inproceedings{DBIS:HosKarKla07, Author = {Hose, K. and Karnstedt, M. and Klan, D. and Sattler, K. and Quasebarth, J.}, Booktitle = {KDML 2007: Knowledge Discovery, Data Mining, and Machine Learning}, Pages = {183-190}, Title = {Incremental Mining for Facility Management}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:HosKarKla07.pdf}, Year = {2007} }[Download]
Modern buildings are equipped with high-tech systems that take care of several fundamental aspects, e.g., air-conditioning, heating and water supply. The requirements posed on facility management by such buildings are challenging. Modern techniques implement adaptive control systems to achieve this, in which decisions are preferably based on the results of (multiple correlated) mining tasks on recently gathered sensor data. In this work, we discuss the general relationship between such control systems and the underlying mining tasks. We exemplary choose change detection in the context of pattern analysis as a representative, because this mining task involves general requirements known from stream processing like the need for incremental algorithms, but also poses specific challenges like in-time detection. We present three concrete approaches for this and an according evaluation. - K. Hose, C. Lemke, J. Quasebarth, K. Sattler
SmurfPDMS: A Platform for Query Processing in Large-Scale PDMS
Datenbanksysteme in Business, Technologie und Web (BTW 2007), 12. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme (DBIS), Proceedings, 7.-9. M"arz 2007, Aachen, Germany, Pages 621-624, LNI, Volume 103, 2007
[Bibtex]@inproceedings{DBIS:HosLem07btw, Author = {Hose, K. and Lemke, C. and Quasebarth, J. and Sattler, K.}, Booktitle = {Datenbanksysteme in Business, Technologie und Web (BTW 2007), 12. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme (DBIS), Proceedings, 7.-9. M"arz 2007, Aachen, Germany}, Pages = {621-624}, Series = {LNI}, Title = {SmurfPDMS: A Platform for Query Processing in Large-Scale PDMS}, Volume = {103}, Year = {2007} } - K. Hose, J. Quasebarth, K. Sattler
Interoperability in Peer Data Management Systems
VLDB International Workshop on Semantic Data and Service Integration (SDSI), 2007
[Bibtex]@inproceedings{DBIS:HosQuaSat07, Author = {Hose, K. and Quasebarth, J. and Sattler, K.}, Booktitle = {VLDB International Workshop on Semantic Data and Service Integration (SDSI)}, Title = {Interoperability in Peer Data Management Systems}, Year = {2007} } - M. Karnstedt, C. Franke, M.M. Gaber
A Model for Quality Guaranteed Resource-Aware Stream Mining
Fifth International Workshop on Knowledge Discovery from Ubiquitous Data Streams icw ECML/PKDD'07, Pages 72-82, 2007
[Bibtex]@inproceedings{DBIS:KarFraGab07, Author = {Karnstedt, M. and Franke, C. and Gaber, M.M.}, Booktitle = {Fifth International Workshop on Knowledge Discovery from Ubiquitous Data Streams icw ECML/PKDD'07}, Pages = {72-82}, Title = {A Model for Quality Guaranteed Resource-Aware Stream Mining}, Year = {2007} } - M. Lühring, K. Sattler, E. Schallehn, K. Schmidt
Autonomes Index Tuning - DBMS-integrierte Verwaltung von Soft Indexen
Datenbanksysteme in Business, Technologie und Web (BTW 2007), 12. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme (DBIS), Proceedings, 7.-9. Marz 2007, Aachen, Germany, Pages 152-171, LNI, Volume 103, 2007
[Bibtex]@Inproceedings{DBIS:LueSat07btw, Author = {L{\"u}hring, M. and Sattler, K. and Schallehn, E. and Schmidt, K.}, Booktitle = {Datenbanksysteme in Business, Technologie und Web (BTW 2007), 12. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme (DBIS), Proceedings, 7.-9. Marz 2007, Aachen, Germany}, Pages = {152-171}, Series = {LNI}, Title = {Autonomes Index Tuning - DBMS-integrierte Verwaltung von Soft Indexen}, Volume = {103}, Year = {2007} } - M. L"uhring, K. Sattler, K. Schmidt, E. Schallehn
Autonomous Tuning with Soft Indexes
ICDE Workshop on Self-Managing Database Systems (SMDB'07), Istanbul, Turkey, To appear, 2007
[Bibtex]@inproceedings{DBIS:LueSat07smdb, Author = {L"uhring, M. and Sattler, K. and Schmidt, K. and Schallehn, E.}, Booktitle = {ICDE Workshop on Self-Managing Database Systems (SMDB'07), Istanbul, Turkey}, Note = {To appear}, Title = {Autonomous Tuning with Soft Indexes}, Year = {2007} } - M. Karnstedt, J. M"uller, K. Sattler
Cost-Aware Skyline Queries in Structured Overlays
ICDE Workshop on Ranking in Databases (DBRank'07), Pages 285-288, 2007
[Bibtex]@inproceedings{DBIS:KarMue07dbrank, Author = {Karnstedt, M. and M"uller, J. and Sattler, K.}, Booktitle = {ICDE Workshop on Ranking in Databases (DBRank'07)}, Pages = {285-288}, Title = {Cost-Aware Skyline Queries in Structured Overlays}, Year = {2007} } - M. Karnstedt, K. Sattler, R. Schmidt
Completeness Estimation of Range Queries in Structured Overlays
P2P'07, Pages 71-78, 2007
[Bibtex]@inproceedings{DBIS:KarSatSch07p2p, Author = {Karnstedt, M. and Sattler, K. and Schmidt, R.}, Booktitle = {P2P'07}, Pages = {71-78}, Title = {Completeness Estimation of Range Queries in Structured Overlays}, Year = {2007} } - A. Klein, H.-H. Do, G. Hackenbroich, M. Karnstedt, W. Lehner
Representing Data Quality for Streaming and Static Data
ICDE Workshop on Ambient Intelligence, Media, and Sensing (AIMS07), Istanbul, Turkey, Pages 3-10, 2007
[Bibtex]@inproceedings{DBIS:KleDoHac07aims, Author = {Klein, A. and Do, H.-H. and Hackenbroich, G. and Karnstedt, M. and Lehner, W.}, Booktitle = {ICDE Workshop on Ambient Intelligence, Media, and Sensing (AIMS07), Istanbul, Turkey}, Pages = {3-10}, Title = {Representing Data Quality for Streaming and Static Data}, Year = {2007} } - M. Karnstedt, K. Sattler, M. Richtarsky, J. M"uller, M. Hauswirth, R. Schmidt, R. John
UniStore: Querying a DHT-based Universal Storage
ICDE'07 Demonstrations Program, Pages 1503-1504, 2007
[Bibtex]@inproceedings{DBIS:KarSatRic07icdedemo, Author = {Karnstedt, M. and Sattler, K. and Richtarsky, M. and M"uller, J. and Hauswirth, M. and Schmidt, R. and John, R.}, Booktitle = {ICDE'07 Demonstrations Program}, Pages = {1503-1504}, Title = {UniStore: Querying a DHT-based Universal Storage}, Year = {2007} }
2006
- D. Klan
Replikation in Peer-to-Peer Systemen
Workshop Grundlagen von Datenbanken, Pages 90-94, 2006
[Bibtex][Abstract]@Inproceedings{DBIS:Kla06, Author = {Klan, D.}, Booktitle = {Workshop Grundlagen von Datenbanken}, Pages = {90-94}, Title = {Replikation in Peer-to-Peer Systemen}, Url = {http://www.dbis.prakinf.tu-ilmenau.de/publications/files/DBIS:Kla06.pdf}, Year = {2006} }[Download]
Angesichts der zunehmenden Größe heutiger verteilter Systeme erweist sich das P2P-Paradigma als eine vielversprechende Alternative zu traditionellen Client/Server-Architekturen. Zur Verbesserung von Performance, Verfügbarkeit und Zuverlässigkeit werden die Daten in solchen Systemen auf eine Vielzahl von Peers repliziert. Das mit redundanter Datenhaltung einhergehende Problem der Konsistenzsicherung gestaltet sich in diesem Zusammenhang als Herausforderung. So sind aufgrund der Dimension von P2P-Systemen, dem Fehlen einer zentralen Instanz und ihrem dynamischen Verhalten, herkömmliche aus dem Bereich der Verteilten (Datenbank-) Systeme stammende Techniken zur Replikationsverwaltung oftmals nicht ohne weiteres übertragbar. In der vorliegenden Arbeit untersuchen wir verschiedene bekannte Ansätze zur Konsistenzsicherung von Replikaten bezüglich ihrer Eignung für P2P-Systeme. Darüber hinaus interessiert uns, inwieweit eine Abschwächung der Konsistenzforderung vertretbar ist. Anschließend stellen wir ausgehend von den vorausgegangenen Überlegungen den Entwurf eines Overlaynetzwerkes zur dezentralen Verwaltung von Replikaten vor. Updates erfolgen dabei über einen Masterknoten, welcher sich dynamisch zur Laufzeit ergibt.
Current Trends in Database Technology - EDBT 2006, EDBT 2006 Workshops PhD, DataX, IIDB, IIHA, ICSNW, QLQP, PIM, PaRMA, and Reactivity on the Web, Munich, Germany, March 26-31, 2006, Revised Selected Papers
EDBT Workshops, Lecture Notes in Computer Science, Volume 4254, 2006
[Bibtex]@proceedings{DBIS:EDBT2006, Author = {}, Booktitle = {EDBT Workshops}, Editor = {T. Grust and H. H"opfner and A. Illarramendi and S. Jablonski and M. Mesiti and S. M"uller and P. Patranjan and K. Sattler and M. Spiliopoulou and J. Wijsen}, ISBN = {3-540-46788-2}, Series = {Lecture Notes in Computer Science}, Title = {Current Trends in Database Technology - EDBT 2006, EDBT 2006 Workshops PhD, DataX, IIDB, IIHA, ICSNW, QLQP, PIM, PaRMA, and Reactivity on the Web, Munich, Germany, March 26-31, 2006, Revised Selected Papers}, Volume = {4254}, Year = {2006} }- F. Naumann, K. Sattler
Information Quality: Fundamentals, Techniques, and Use (Tutorial)
10. International Conference on Extending Database Technology (EDBT), Pages , 2006
[Bibtex]@inproceedings{DBIS:NauSat06, Author = {Naumann, F. and Sattler, K.}, Booktitle = {10. International Conference on Extending Database Technology (EDBT)}, Pages = {}, Title = {Information Quality: Fundamentals, Techniques, and Use (Tutorial)}, Year = {2006} } - G. Saake, K. Sattler
Algorithmen & Java: Eine Einf"uhrung mit Java, 3. Auflage
2006
[Bibtex]@book{DBIS:SaaSat06, Author = {Saake, G. and Sattler, K.}, Title = {Algorithmen & Java: Eine Einf"uhrung mit Java, 3. Auflage}, Year = {2006} } - P. Cudr'e-Mauroux, K. Aberer, A. Abdelmoty, T. Catarci, E. Damiani, A. Illaramendi, M. Jarrar, R. Meersman, E. Neuhold, C. Parent, K. Sattler, M. Scannapieco, S. Spaccapietra, P. Spyns, G. De Tr'e
Viewpoints on Emergent Semantics
Journal on Data Semantics, Pages 1-27, Volume VI, 2006
[Bibtex]@article{DBIS:CudAbeAbd06, Author = {Cudr'e-Mauroux, P. and Aberer, K. and Abdelmoty, A. and Catarci, T. and Damiani, E. and Illaramendi, A. and Jarrar, M. and Meersman, R. and Neuhold, E. and Parent, C. and Sattler, K. and Scannapieco, M. and Spaccapietra, S. and Spyns, P. and Tr'e, G. De}, Journal = {Journal on Data Semantics}, Pages = {1-27}, Title = {Viewpoints on Emergent Semantics}, Volume = {VI}, Year = {2006} } - C. Franke, M. Karnstedt, K. Sattler
Mining Data Streams under Dynamicly Changing Resource Constraints
KDML: Knowledge Discovery, Data Mining, and Machine Learning, Pages 262-269, 2006
[Bibtex]@inproceedings{DBIS:FraKarSat06, Author = {Franke, C. and Karnstedt, M. and Sattler, K.}, Booktitle = {KDML: Knowledge Discovery, Data Mining, and Machine Learning}, Pages = {262-269}, Title = {Mining Data Streams under Dynamicly Changing Resource Constraints}, Year = {2006} } - A. Hinneburg, D. Habich, M. Karnstedt
Analyzing Data Streams by Online DFT
IWKDDS-2006, Pages 67-76, 2006
[Bibtex]@inproceedings{DBIS:HinHabKar06, Author = {Hinneburg, A. and Habich, D. and Karnstedt, M.}, Booktitle = {IWKDDS-2006}, Pages = {67-76}, Title = {Analyzing Data Streams by Online DFT}, Year = {2006} } - K. Hose, A. Job, M. Karnstedt, K. Sattler
An Extensible, Distributed Simulation Environment for Peer Data Management Systems
EDBT'06, Pages 1198--1202, 2006
[Bibtex]@inproceedings{DBIS:HosJobKar06, Author = {Hose, K. and Job, A. and Karnstedt, M. and Sattler, K.}, Booktitle = {EDBT'06}, Pages = {1198--1202}, Title = {An Extensible, Distributed Simulation Environment for Peer Data Management Systems}, Year = {2006} } - K. Hose, D. Klan, K. Sattler
Distributed Data Summaries for Approximate Query Processing in PDMS
IDEAS '06: Proceedings of the 10th International Database Engineering and Applications Symposium, Pages 37--44, 2006
[Bibtex]@inproceedings{DBIS:HosKlaSat06, Author = {Hose, K. and Klan, D. and Sattler, K.}, Booktitle = {IDEAS '06: Proceedings of the 10th International Database Engineering and Applications Symposium}, ISBN = {0-7695-2577-6}, Pages = {37--44}, Title = {Distributed Data Summaries for Approximate Query Processing in PDMS}, Year = {2006} } - K. Hose, C. Lemke, K. Sattler
Processing Relaxed Skylines in PDMS Using Distributed Data Summaries
CIKM'06, Pages 425--434, 2006
[Bibtex]@inproceedings{DBIS:HosLemSat06, Author = {Hose, K. and Lemke, C. and Sattler, K.}, Booktitle = {CIKM'06}, ISBN = {1-59593-433-2}, Pages = {425--434}, Title = {Processing Relaxed Skylines in PDMS Using Distributed Data Summaries}, Year = {2006} } - M. Karnstedt, K. Sattler, M. Hauswirth, R. Schmidt
Light-weight Internet-scale Universal Storage
EPFL, Switzerland, LSIR-REPORT-2006-008, 2006
[Bibtex]@techreport{DBIS:KarSatHau06tr, Author = {Karnstedt, M. and Sattler, K. and Hauswirth, M. and Schmidt, R.}, Institution = {EPFL, Switzerland}, Note = {LSIR-REPORT-2006-008}, Title = {Light-weight Internet-scale Universal Storage}, Year = {2006} } - M. Karnstedt, K. Sattler, M. Hauswirth, R. Schmidt
Cost-Aware Processing of Similarity Queries in Structured Overlays
P2P'06, Pages 81-89, 2006
[Bibtex]@inproceedings{DBIS:KarSatHau06p2p, Author = {Karnstedt, M. and Sattler, K. and Hauswirth, M. and Schmidt, R.}, Booktitle = {P2P'06}, Pages = {81-89}, Title = {Cost-Aware Processing of Similarity Queries in Structured Overlays}, Year = {2006} } - M. Karnstedt, K. Sattler, M. Hauswirth, R. Schmidt
Similarity Queries on Structured Data in Structured Overlays
Int. Workshop on Networking Meets Databases (NetDB'06), Pages 32-37, 2006
[Bibtex]@inproceedings{DBIS:KarSatHau06netdb, Author = {Karnstedt, M. and Sattler, K. and Hauswirth, M. and Schmidt, R.}, Booktitle = {Int. Workshop on Networking Meets Databases (NetDB'06)}, Pages = {32-37}, Title = {Similarity Queries on Structured Data in Structured Overlays}, Year = {2006} }
2005
- K. Hose
Top-N Anfrageverarbeitung in PDMS: Anforderungen und L"osungswege
Tagungsband zum 17. GI-Workshop "uber Grundlagen von Datenbanken, W"orlitz, May, Pages 53--57, 2005
[Bibtex]@inproceedings{DBIS:Hos05gvd, Author = {Hose, K.}, Booktitle = {Tagungsband zum 17. GI-Workshop "uber Grundlagen von Datenbanken, W"orlitz}, Month = {May}, Pages = {53--57}, Title = {Top-N Anfrageverarbeitung in PDMS: Anforderungen und L"osungswege}, Year = {2005} } - D. Habich, M. Karnstedt, A. Hinneburg
Erkennen von aperiodischen Ausreissern
, March2005
[Bibtex]@inproceedings{DBIS:HabKarHin05, Author = {Habich, D. and Karnstedt, M. and Hinneburg, A.}, Month = {March}, Title = {Erkennen von aperiodischen Ausreissern}, Year = {2005} } - T. Heimrich, K. Sattler, K. Reichelt, G. Gatzsche
Verwaltung spatio-temporaler Audiodaten f"ur die Wellenfeldsynthese
BTW, Karlsruhe, Germany, 2005, March, Pages 444-453, 2005
[Bibtex]@inproceedings{DBIS:HeiSatRei05, Author = {Heimrich, T. and Sattler, K. and Reichelt, K. and Gatzsche, G.}, Booktitle = {BTW, Karlsruhe, Germany, 2005}, Month = {March}, Pages = {444-453}, Title = {Verwaltung spatio-temporaler Audiodaten f"ur die Wellenfeldsynthese}, Year = {2005} } - P. R"osch, C. von der Weth, K. Sattler, E. Buchmann
Verteilte Anfrageverarbeitung in DHT-basierten P2P-Systemen
BTW, Karlsruhe, Germany, March, Pages 165-174, 2005
[Bibtex]@inproceedings{DBIS:RoeWetSat05, Author = {R"osch, P. and Weth, C. von der and Sattler, K. and Buchmann, E.}, Booktitle = {BTW, Karlsruhe, Germany}, Month = {March}, Pages = {165-174}, Title = {Verteilte Anfrageverarbeitung in DHT-basierten P2P-Systemen}, Year = {2005} } - K. Hose
Eine inkrementelle Anfragestrategie zur dynamischen und robusten Anfrageverarbeitung in schemabasierten P2P-Systemen
BTW Studierenden-Programm, Karlsruhe, Germany, 2005, March, Pages 37-39, 2005
[Bibtex]@inproceedings{DBIS:Hos05btwStud, Author = {Hose, K.}, Booktitle = {BTW Studierenden-Programm, Karlsruhe, Germany, 2005}, Month = {March}, Pages = {37-39}, Title = {Eine inkrementelle Anfragestrategie zur dynamischen und robusten Anfrageverarbeitung in schemabasierten P2P-Systemen}, Year = {2005} } - K. Hose, M. Karnstedt, K. Sattler, D. Zinn
Processing Top-N Queries in P2P-based Web Integration Systems with Probabilistic Guarantees
WebDB'05, June, Pages 109--114, 2005
[Bibtex]@inproceedings{DBIS:HosKarSat05webdb, Author = {Hose, K. and Karnstedt, M. and Sattler, K. and Zinn, D.}, Booktitle = {WebDB'05}, Month = {June}, Pages = {109--114}, Title = {Processing Top-N Queries in P2P-based Web Integration Systems with Probabilistic Guarantees}, Year = {2005} } - G. Saake, A. Heuer, K. Sattler
Datenbanken: Implementierungstechniken, 2. Auflage
, Januar2005
[Bibtex]@book{DBIS:SaaHeuSat05, Author = {Saake, G. and Heuer, A. and Sattler, K.}, Month = {Januar}, Title = {Datenbanken: Implementierungstechniken, 2. Auflage}, Year = {2005} } - K. Hose
Processing Skyline Queries in P2P Systems
VLDB 2005 PhD Workshop, Trondheim, 2005, Pages 36-40, 2005
[Bibtex]@inproceedings{DBIS:Hose05b, Author = {Hose, K.}, Booktitle = {VLDB 2005 PhD Workshop, Trondheim, 2005}, Pages = {36-40}, Title = {Processing Skyline Queries in P2P Systems}, Year = {2005} } - T. Heimrich
Modeling Output Constraints in Multimedia Database Systems
MMM '05: Proceedings of the 11th International Multimedia Modelling Conference (MMM'05), Pages 399--404, 2005
[Bibtex]@inproceedings{DBIS:Hei05mmm, Author = {Heimrich, T.}, Booktitle = {MMM '05: Proceedings of the 11th International Multimedia Modelling Conference (MMM'05)}, ISBN = {0-7695-2164-9}, Pages = {399--404}, Title = {Modeling Output Constraints in Multimedia Database Systems}, Year = {2005} } - X. Shang, K. Sattler
Frequent Itemset Mining with Parallel RDBMS
PAKDD, Pages 539-544, 2005
[Bibtex]@inproceedings{DBIS:ShaSat05, Author = {Shang, X. and Sattler, K.}, Booktitle = {PAKDD}, Pages = {539-544}, Title = {Frequent Itemset Mining with Parallel RDBMS}, Year = {2005} } - H. Blaar, T. Lange, R. Winter, Marcel Karnstedt
Possibilities to Solve the Clique Problem by Thread Parallelism using Task Pools
IPDPS '05: Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 5, Pages 185.1, 2005
[Bibtex]@inproceedings{DBIS:BlaLanWin05, Author = {Blaar, H. and Lange, T. and Winter, R. and Karnstedt, Marcel}, Booktitle = {IPDPS '05: Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 5}, ISBN = {0-7695-2312-9}, Pages = {185.1}, Title = {Possibilities to Solve the Clique Problem by Thread Parallelism using Task Pools}, Year = {2005} } - C. Franke, M. Hartung, M. Karnstedt, K. Sattler
Quality-Aware Mining of Data Streams
IQ, Pages 300-315, 2005
[Bibtex]@inproceedings{DBIS:FraHarKar05, Author = {Franke, C. and Hartung, M. and Karnstedt, M. and Sattler, K.}, Booktitle = {IQ}, Pages = {300-315}, Title = {Quality-Aware Mining of Data Streams}, Year = {2005} } - Th. Heimrich, K. Reichelt, H. Rusch, K. Sattler, Th. Schr"oder
Modelling and Streaming Spatiotemporal Audio Data.
OTM Workshops, Pages 7-8, 2005
[Bibtex]@inproceedings{DBIS:HeiReiRus05, Author = {Heimrich, Th. and Reichelt, K. and Rusch, H. and Sattler, K. and Schr"oder, Th.}, Booktitle = {OTM Workshops}, Pages = {7-8}, Title = {Modelling and Streaming Spatiotemporal Audio Data.}, Year = {2005} } - K. Hose, M. Karnstedt, A. Koch, K. Sattler, D. Zinn
Processing Rank-Aware Queries in P2P Systems
Third International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P 2005), Trondheim, Pages 238-249, 2005
[Bibtex]@inproceedings{DBIS:HosKarKoc05, Author = {Hose, K. and Karnstedt, M. and Koch, A. and Sattler, K. and Zinn, D.}, Booktitle = {Third International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P 2005), Trondheim}, Pages = {238-249}, Title = {Processing Rank-Aware Queries in P2P Systems}, Year = {2005} } - M. Karnstedt, K. Hose, E. Stehr, K. Sattler
Adaptive Routing Filters for Robust Query Processing in Schema-Based P2P Systems
IDEAS 2005, Montreal, Canada, 2005, Pages 223--228, 2005
[Bibtex]@inproceedings{DBIS:KarHosSte05, Author = {Karnstedt, M. and Hose, K. and Stehr, E. and Sattler, K.}, Booktitle = {IDEAS 2005, Montreal, Canada, 2005}, Pages = {223--228}, Title = {Adaptive Routing Filters for Robust Query Processing in Schema-Based P2P Systems}, Year = {2005} } - P. R"osch, K. Sattler, C. von der Weth, E. Buchmann
Best Effort Query Processing in DHT-based P2P Systems
ICDE'05 Workshops, Pages 1186, 2005
[Bibtex]@inproceedings{DBIS:RoeSatWet05, Author = {R"osch, P. and Sattler, K. and Weth, C. von der and Buchmann, E.}, Booktitle = {ICDE'05 Workshops}, ISBN = {0-7695-2657-8}, Pages = {1186}, Title = {Best Effort Query Processing in DHT-based P2P Systems}, Year = {2005} } - G. Saake, K. Sattler, S. Conrad
Rule-based Schema Matching for Ontology-based Mediators
Journal of Applied Logic, Number 1, Pages 253-270, Volume 3, 2005
[Bibtex]@article{DBIS:SaaSatCon05, Author = {Saake, G. and Sattler, K. and Conrad, S.}, Journal = {Journal of Applied Logic}, Number = {1}, Pages = {253-270}, Title = {Rule-based Schema Matching for Ontology-based Mediators}, Volume = {3}, Year = {2005} } - K. Sattler, I. Geist, E. Schallehn
Concept-based Querying in Mediator Systems
The VLDB Journal, Number 1, Pages 97-111, Volume 14, 2005
[Bibtex]@article{DBIS:SatGeiSch05, Author = {Sattler, K. and Geist, I. and Schallehn, E.}, Journal = {The VLDB Journal}, Number = {1}, Pages = {97-111}, Title = {Concept-based Querying in Mediator Systems}, Volume = {14}, Year = {2005} } - K. Sattler, E. Schallehn, I. Geist
Towards Indexing Schemes for Self-Tuning DBMS
ICDEW '05: Proceedings of the 21st International Conference on Data Engineering Workshops, Pages 1216, 2005
[Bibtex]@inproceedings{DBIS:SatSchGei05, Author = {Sattler, K. and Schallehn, E. and Geist, I.}, Booktitle = {ICDEW '05: Proceedings of the 21st International Conference on Data Engineering Workshops}, ISBN = {0-7695-2657-8}, Pages = {1216}, Title = {Towards Indexing Schemes for Self-Tuning DBMS}, Year = {2005} } - X. Shang, K. Sattler
Processing Sequential Patterns in Relational Databases
DaWaK, Pages 438-447, 2005
[Bibtex]@inproceedings{DBIS:ShaSat05dawak, Author = {Shang, X. and Sattler, K.}, Booktitle = {DaWaK}, Pages = {438-447}, Title = {Processing Sequential Patterns in Relational Databases}, Year = {2005} } - K. Sattler, I. Geist, E. Schallehn
Concept-based Querying in Mediator Systems
The VLDB Journal, Number 1, Pages 97--111, Volume 14, 2005
[Bibtex]@article{DBIS:SatGeiSch05vldbj, Author = {Sattler, K. and Geist, I. and Schallehn, E.}, Journal = {The VLDB Journal}, Number = {1}, Pages = {97--111}, Title = {Concept-based Querying in Mediator Systems}, Volume = {14}, Year = {2005} }
2004
- M. Gertz, M. Tamer "Ozsu, G. Saake, K. Sattler
Report on the Dagstuhl Seminar 'Data Quality on the Web'
ACM SIGMOD Record, March, Number 1, Pages 126-132, Volume 33, 2004
[Bibtex]@article{DBIS:GerOezSaa04dagst, Author = {Gertz, M. and "Ozsu, M. Tamer and Saake, G. and Sattler, K.}, Journal = {ACM SIGMOD Record}, Month = {March}, Number = {1}, Pages = {126-132}, Title = {Report on the Dagstuhl Seminar 'Data Quality on the Web'}, Volume = {33}, Year = {2004} } - G. Saake, K. Sattler
Algorithmen & Java: Eine Einf"uhrung mit Java, 2., "uberarbeitete und erweiterte Auflage
, April2004
[Bibtex]@book{DBIS:SaaSat04, Author = {Saake, G. and Sattler, K.}, Month = {April}, Title = {Algorithmen & Java: Eine Einf"uhrung mit Java, 2., "uberarbeitete und erweiterte Auflage}, Year = {2004} } - T. Heimrich
An Output Schema for Multimedia Data in Multimedia Database Systems
6. Int. Conf. Baltic DB&IS'2004, Riga, Pages 125-134, 2004
[Bibtex]@inproceedings{DBIS:Hei04dbis, Author = {Heimrich, T.}, Booktitle = {6. Int. Conf. Baltic DB&IS'2004, Riga}, Pages = {125-134}, Title = {An Output Schema for Multimedia Data in Multimedia Database Systems}, Year = {2004} } - T. Heimrich
Output Constraints in Multimedia Database Systems
4th Int. Workshop on Multimedia Data and Document Engeniering (MDDE icw CVPR), Washington D.C., USA, Pages 143, 2004
[Bibtex]@inproceedings{DBIS:Hei04mdde, Author = {Heimrich, T.}, Booktitle = {4th Int. Workshop on Multimedia Data and Document Engeniering (MDDE icw CVPR), Washington D.C., USA}, Pages = {143}, Title = {Output Constraints in Multimedia Database Systems}, Year = {2004} } - M. Karnstedt
Anfragebearbeitung und Routing in Schema-basierten P2P-Systemen
Proceedings of the 16. Workshop Grundlagen von Datenbanken (GvDB04), Pages 78-82, 2004
[Bibtex]@inproceedings{DBIS:Kar04gvdb, Author = {Karnstedt, M.}, Booktitle = {Proceedings of the 16. Workshop Grundlagen von Datenbanken (GvDB04)}, Editor = {M. Samia and S. Conrad}, Pages = {78-82}, Title = {Anfragebearbeitung und Routing in Schema-basierten P2P-Systemen}, Year = {2004} } - K. Sattler, P. R"osch, E. Buchmann, K. B"ohm
A Physical Query Algebra for DHT-based P2P Systems
Workshop on Distributed Data and Structures (WDAS'04), 2004
[Bibtex]@inproceedings{DBIS:SatRoeBuc04, Author = {Sattler, K. and R"osch, P. and Buchmann, E. and B"ohm, K.}, Booktitle = {Workshop on Distributed Data and Structures (WDAS'04)}, Title = {A Physical Query Algebra for DHT-based P2P Systems}, Year = {2004} } - E. Schallehn, I. Geist, K. Sattler
Supporting Similarity Operations based on Approximate String Matching on the Web
CoopIS'04, Pages 227-244, 2004
[Bibtex]@inproceedings{DBIS:SchGeiSat04, Author = {Schallehn, E. and Geist, I. and Sattler, K.}, Booktitle = {CoopIS'04}, Pages = {227-244}, Title = {Supporting Similarity Operations based on Approximate String Matching on the Web}, Year = {2004} } - H. H"opfner, S. Schosser, K. Sattler
An Indexing Scheme for Update Propagation in Large Mobile Information Systems
Workshop on Pervasive Information Management, held in conjunction with EDBT 2004, Pages 31-42, 2004
[Bibtex]@inproceedings{DBIS:HoeSchSat04pim, Author = {H"opfner, H. and Schosser, S. and Sattler, K.}, Booktitle = {Workshop on Pervasive Information Management, held in conjunction with EDBT 2004}, Pages = {31-42}, Title = {An Indexing Scheme for Update Propagation in Large Mobile Information Systems}, Year = {2004} } - X. Shang, K. Sattler, I. Geist
SQL-based Frequent Pattern Mining without Candidate Generation
ACM Symposium of Applied Computing (SAC 2004), Pages 618-619, 2004
[Bibtex]@inproceedings{DBIS:ShaSatGei04sac, Author = {Shang, X. and Sattler, K. and Geist, I.}, Booktitle = {ACM Symposium of Applied Computing (SAC 2004)}, Pages = {618-619}, Title = {SQL-based Frequent Pattern Mining without Candidate Generation}, Year = {2004} } - E. Schallehn, K. Sattler, G. Saake
Efficient Similarity-based Operations for Data Integration
Data and Knowledge Engineering Journal, Number 3, Pages 361--387, Volume 48, 2004
[Bibtex]@article{DBIS:SchSatSaa04dkej, Author = {Schallehn, E. and Sattler, K. and Saake, G.}, Journal = {Data and Knowledge Engineering Journal}, Number = {3}, Pages = {361--387}, Title = {Efficient Similarity-based Operations for Data Integration}, Volume = {48}, Year = {2004} } - M. Karnstedt, K. Hose, K. Sattler
Distributed Query Processing in P2P Systems with Incomplete Schema Information
CAiSE'04 Workshops, Pages 34-45, 2004
[Bibtex]@inproceedings{DBIS:KarHosSat04diweb, Author = {Karnstedt, M. and Hose, K. and Sattler, K.}, Booktitle = {CAiSE'04 Workshops}, Editor = {J. Grundspenkis and M. Kirikova}, Pages = {34-45}, Title = {Distributed Query Processing in P2P Systems with Incomplete Schema Information}, Year = {2004} } - M. Karnstedt, K. Hose, K.-U. Sattler
Query Routing and Processing in Schema-Based P2P Systems
DEXA'04 Workshops, Pages 544-548, 2004
[Bibtex]@inproceedings{DBIS:KarHosSat04globe, Author = {Karnstedt, M. and Hose, K. and Sattler, K.-U.}, Booktitle = {DEXA'04 Workshops}, Pages = {544-548}, Title = {Query Routing and Processing in Schema-Based P2P Systems}, Year = {2004} } - M. Karnstedt, K. Sattler, E. Schallehn, M. Endig
Ad-hoc-Integration in schemabasierten P2P-Systemen
Proceedings Informatik 2004, Pages 373-377, 2004
[Bibtex]@inproceedings{DBIS:KarSatSch04adhoc, Author = {Karnstedt, M. and Sattler, K. and Schallehn, E. and Endig, M.}, Booktitle = {Proceedings Informatik 2004}, Editor = {P. Dadam and M. Reichert}, Pages = {373-377}, Title = {Ad-hoc-Integration in schemabasierten P2P-Systemen}, Year = {2004} } - K. Sattler, I. Geist, E. Schallehn
Autonomous Query-driven Index Tuning
IDEAS'04, Coimbra, Portugal, Pages 439-448, 2004
[Bibtex]@inproceedings{DBIS:SatGeiSch04ideas, Author = {Sattler, K. and Geist, I. and Schallehn, E.}, Booktitle = {IDEAS'04, Coimbra, Portugal}, Pages = {439-448}, Title = {Autonomous Query-driven Index Tuning}, Year = {2004} } - X. Shang, K. Sattler, I. Geist
SQL-based Frequent Pattern Mining with FP-Growth
Proceedings of the 15th International Conference on Applications of Declarative Programming and Knowledge Management, Pages 32-46, 2004
[Bibtex]@inproceedings{DBIS:ShaSatGei04adpkm, Author = {Shang, X. and Sattler, K. and Geist, I.}, Booktitle = {Proceedings of the 15th International Conference on Applications of Declarative Programming and Knowledge Management}, Pages = {32-46}, Title = {SQL-based Frequent Pattern Mining with FP-Growth}, Year = {2004} } - H. H"opfner, S. Schosser, K. Sattler
Towards Trie-based Indexing of Mobile Clients in Large Mobile Information Systems
Technical Report No. 2, Dept. of Computer Science, University of Magdeburg, 2004
[Bibtex]@techreport{DBIS:HoeSchSat04report, Author = {H"opfner, H. and Schosser, S. and Sattler, K.}, Booktitle = {Technical Report No. 2}, Institution = {Dept. of Computer Science, University of Magdeburg}, Title = {Towards Trie-based Indexing of Mobile Clients in Large Mobile Information Systems}, Year = {2004} }
2003
- G. Saake, K. Sattler
Datenbanken & Java, 2. Auflage
2003
[Bibtex]@book{DBIS:SaaSat03, Author = {Saake, G. and Sattler, K.}, Title = {Datenbanken & Java, 2. Auflage}, Year = {2003} } - A. Heuer, G. Saake, K. Sattler
Datenbanken - kompakt, 2. Auflage
2003
[Bibtex]@book{DBIS:HeuSaaSat03, Author = {Heuer, A. and Saake, G. and Sattler, K.}, Title = {Datenbanken - kompakt, 2. Auflage}, Year = {2003} } - H. H"opfner, K. Sattler
Cache-supported Processing of Queries in Mobile DBS
Persistence, Scalability, Transactions - Database Mechanisms for Mobile Applications, Workshop by the GI-Arbeitskreis Mobile Datenbanken, Karlsruhe, Pages 106-121, 2003
[Bibtex]@inproceedings{DBIS:HoeSat03mdb, Author = {H"opfner, H. and Sattler, K.}, Booktitle = {Persistence, Scalability, Transactions - Database Mechanisms for Mobile Applications, Workshop by the GI-Arbeitskreis Mobile Datenbanken, Karlsruhe}, Editor = {B. K"onig-Ries and M. Klein and P. Obreiter}, Pages = {106-121}, Title = {Cache-supported Processing of Queries in Mobile DBS}, Year = {2003} } - M. Karnstedt, K. Sattler, I. Geist, H. H"opfner
Semantic Caching in Ontology-based Mediator Systems
Proceedings of the 3rd International Workshop of the GI Working Group Web und Datenbanken, Berliner XML-Tage 2003, Berlin, Pages 155-169, 2003
[Bibtex]@inproceedings{DBIS:KarSatGei03, Author = {Karnstedt, M. and Sattler, K. and Geist, I. and H"opfner, H.}, Booktitle = {Proceedings of the 3rd International Workshop of the GI Working Group Web und Datenbanken, Berliner XML-Tage 2003, Berlin}, Pages = {155-169}, Title = {Semantic Caching in Ontology-based Mediator Systems}, Year = {2003} } - H. H"opfner, K. Sattler
Semantic Replication in Mobile Federated Information Systems
Engineering Federated Information Systems, Proceedings of the 5th Workshop EFIS 2003, Coventry, UK, Pages 36-41, 2003
[Bibtex]@inproceedings{DBIS:HowSat03efis, Author = {H"opfner, H. and Sattler, K.}, Booktitle = {Engineering Federated Information Systems, Proceedings of the 5th Workshop EFIS 2003, Coventry, UK}, Pages = {36-41}, Title = {Semantic Replication in Mobile Federated Information Systems}, Year = {2003} } - H. H"opfner, K. Sattler
SmoS: A Scalable Mobility Server
BNCOD Posters, Pages 49-52, 2003
[Bibtex]@inproceedings{DBIS:HoeSat03bncod, Author = {H"opfner, H. and Sattler, K.}, Booktitle = {BNCOD Posters}, Pages = {49-52}, Title = {SmoS: A Scalable Mobility Server}, Year = {2003} } - K. Sattler, S. Conrad, G. Saake
Interactive Example-driven Integration and Reconciliation for Accessing Database Federations
Information Systems, Number 5, Pages 393-414, Volume 28, 2003
[Bibtex]@article{DBIS:SatConSaa03is, Author = {Sattler, K. and Conrad, S. and Saake, G.}, Journal = {Information Systems}, Number = {5}, Pages = {393-414}, Title = {Interactive Example-driven Integration and Reconciliation for Accessing Database Federations}, Volume = {28}, Year = {2003} } - E. Schallehn, K. Sattler
Using Similarity-based Operations for Resolving Data-level Conflicts
Advances in Databases, 20th British National Conf. on Databases, BNCOD 20, Coventry, UK, July 2003, Pages 172--189, LNCS, Volume 2712, 2003
[Bibtex]@inproceedings{DBIS:SchSat03bncod, Author = {Schallehn, E. and Sattler, K.}, Booktitle = {Advances in Databases, 20th British National Conf. on Databases, BNCOD 20, Coventry, UK, July 2003}, Editor = {A. James and B. Lings and M. Younas}, Pages = {172--189}, Series = {LNCS}, Title = {Using Similarity-based Operations for Resolving Data-level Conflicts}, Volume = {2712}, Year = {2003} } - K. Sattler, I. Geist, R. Habrecht, E. Schallehn
Konzeptbasierte Anfrageverarbeitung in Mediatorsystemen
BTW 2003, Datenbanksysteme f"ur Business, Technologie und Web, Tagungsband der 10. BTW-Konferenz, 26.-28. Februar 2003, Leipzig, Pages 78-97, LNI, Volume 26, 2003
[Bibtex]@inproceedings{DBIS:SatGeiHab03btw, Author = {Sattler, K. and Geist, I. and Habrecht, R. and Schallehn, E.}, Booktitle = {BTW 2003, Datenbanksysteme f"ur Business, Technologie und Web, Tagungsband der 10. BTW-Konferenz, 26.-28. Februar 2003, Leipzig}, Pages = {78-97}, Series = {LNI}, Title = {Konzeptbasierte Anfrageverarbeitung in Mediatorsystemen}, Volume = {26}, Year = {2003} } - K. Sattler, I. Geist, E. Schallehn
QUIET: Continuous Query-driven Index Tuning
Proceedings of 29th International Conference on Very Large Data Bases (VLDB), Berlin, Germany, Pages 1129-1132, 2003
[Bibtex]@inproceedings{DBIS:SatGeiSch03vldb, Author = {Sattler, K. and Geist, I. and Schallehn, E.}, Booktitle = {Proceedings of 29th International Conference on Very Large Data Bases (VLDB), Berlin, Germany}, Pages = {1129-1132}, Title = {QUIET: Continuous Query-driven Index Tuning}, Year = {2003} }
2002
- O. Dunemann, I. Geist, R. Jesse, G. Saake, K. Sattler
Informationsfusion auf heterogenen Datenbest"anden
Informatik, Forschung und Entwicklung, September, Number 3, Pages 112-122, Volume 17, 2002
[Bibtex]@article{DBIS:DunGeiJesSaaSat02, Author = {Dunemann, O. and Geist, I. and Jesse, R. and Saake, G. and Sattler, K.}, Journal = {Informatik, Forschung und Entwicklung}, Month = {September}, Number = {3}, Pages = {112-122}, Title = {Informationsfusion auf heterogenen Datenbest"anden}, Volume = {17}, Year = {2002} } - I. Geist, K. Sattler
Towards Data Mining Operators in Database Systems: Algebra and Implementation
2nd International Workshop on Databases, Documents, and Information Fusion (DBFusion 2002) -- Information Integration and Mining in Databases and on the Web, July 4./5., 2002
[Bibtex]@inproceedings{DBIS:GeiSat02, Author = {Geist, I. and Sattler, K.}, Booktitle = {2nd International Workshop on Databases, Documents, and Information Fusion (DBFusion 2002) -- Information Integration and Mining in Databases and on the Web}, Month = {July 4./5.}, Title = {Towards Data Mining Operators in Database Systems: Algebra and Implementation}, Year = {2002} }
Proc. of 2nd Int. Workshop on Databases, Documents, and Information Fusion (DBFusion 2002) -- Information Integration and Mining in Databases and on the Web
, July2002
[Bibtex]@proceedings{DBIS:MaeSatStu02, Author = {}, Editor = {A. Maedche and K. Sattler and G. Stumme}, Month = {July}, Title = {Proc. of 2nd Int. Workshop on Databases, Documents, and Information Fusion (DBFusion 2002) -- Information Integration and Mining in Databases and on the Web}, Year = {2002} }- E. Buchmann, H. H"opfner, K. Sattler
An Extensible Storage Manager for Mobile DBMS
Databases and Information Systems II (BalticDB&IS 2002 Selected Papers), Dezember, Pages 225--238, Volume 1, 2002
[Bibtex]@inproceedings{DBIS:BucHoeSat02buch, Author = {Buchmann, E. and H"opfner, H. and Sattler, K.}, Booktitle = {Databases and Information Systems II (BalticDB&IS 2002 Selected Papers)}, Editor = {H. Haav and A. Kalja}, ISBN = {1-4020-1038-9}, Month = {Dezember}, Pages = {225--238}, Title = {An Extensible Storage Manager for Mobile DBMS}, Volume = {1}, Year = {2002} } - E. Buchmann, H. H"opfner, K. Sattler
An Extensible Storage Manager for Mobile DBMS
Proceedings of the 5th International Baltic Conference on DB and IS (BalticDB&IS), June, 3rd--6th, 2002, Tallinn, Estonia, Pages 103--116, Volume 1, 2002
[Bibtex]@inproceedings{DBIS:BucHoeSat02, Author = {Buchmann, E. and H"opfner, H. and Sattler, K.}, Booktitle = {Proceedings of the 5th International Baltic Conference on DB and IS (BalticDB&IS), June, 3rd--6th, 2002, Tallinn, Estonia}, Editor = {H. Haav and A. Kalja}, Pages = {103--116}, Title = {An Extensible Storage Manager for Mobile DBMS}, Volume = {1}, Year = {2002} } - M. Gertz, K. Sattler
Integrating Scientific Data through External Concept-based Annotations
2nd Int. Workshop on Data Integration over the Web (DIWeb 2002), May 28, Toronto, Pages 87--101, 2002
[Bibtex]@inproceedings{DBIS:GerSat02diweb, Author = {Gertz, M. and Sattler, K.}, Booktitle = {2nd Int. Workshop on Data Integration over the Web (DIWeb 2002), May 28, Toronto}, Pages = {87--101}, Title = {Integrating Scientific Data through External Concept-based Annotations}, Year = {2002} } - M. Gertz, K. Sattler, F. Gorin, M. Hogarth, J. Stone
Annotating Scientific Images: A Concept-based Approach
14th Int. Conf. on Scientific and Statistical Database Management (SSDBM 2002), July, 24th-26th, Edinburgh, 2002
[Bibtex]@inproceedings{DBIS:GerSat02ssdbm, Author = {Gertz, M. and Sattler, K. and Gorin, F. and Hogarth, M. and Stone, J.}, Booktitle = {14th Int. Conf. on Scientific and Statistical Database Management (SSDBM 2002), July, 24th-26th, Edinburgh}, Title = {Annotating Scientific Images: A Concept-based Approach}, Year = {2002} } - O. Dunemann, I. Geist, R. Jesse, K. Sattler, A. Stephanik
A Database-Supported Workbench for Information Fusion: InFuse
Advances in Database Technology - EDBT 2002, 8th International Conference on Extending Database Technology, Prague, Czech Republic, March 25-27, Proceedings, Pages 756 - 758, Lecture Notes in Computer Science, Volume 2287, 2002
[Bibtex]@inproceedings{DBIS:DunGeiJesSat02, Author = {Dunemann, O. and Geist, I. and Jesse, R. and Sattler, K. and Stephanik, A.}, Booktitle = {Advances in Database Technology - EDBT 2002, 8th International Conference on Extending Database Technology, Prague, Czech Republic, March 25-27, Proceedings}, Editor = {C. S. Jensen and K. G. Jeffery and J. Pokorn'y and S. Saltenis and E. Bertino and K. B"ohm and M. Jarke}, ISBN = {3-540-43324-4}, Pages = {756 - 758}, Series = {Lecture Notes in Computer Science}, Title = {A Database-Supported Workbench for Information Fusion: InFuse}, Volume = {2287}, Year = {2002} } - E. Schallehn, K. Sattler, G. Saake
Extensible and Similarity-based Grouping for Data Integration emphPoster paper
8th Int. Conf. on Data Engineering (ICDE), 26 February - 1 March 2002, San Jose, CA, Pages 277, 2002
[Bibtex]@inproceedings{DBIS:SchSatSaa02icde, Author = {Schallehn, E. and Sattler, K. and Saake, G.}, Booktitle = {8th Int. Conf. on Data Engineering (ICDE), 26 February - 1 March 2002, San Jose, CA}, Editor = {Rakesh Agrawal and Klaus Dittrich and Anne H.H. Ngu}, Pages = {277}, Title = {Extensible and Similarity-based Grouping for Data Integration emphPoster paper}, Year = {2002} } - K. Sattler, S. Conrad, G. Saake
Datenintegration und Mediatoren
Web & Datenbanken, 2002
[Bibtex]@incollection{DBIS:SatConSaa02webdb, Author = {Sattler, K. and Conrad, S. and Saake, G.}, Booktitle = {Web & Datenbanken}, Editor = {E. Rahm and G. Vossen}, Title = {Datenintegration und Mediatoren}, Year = {2002} }
2001
- G. Saake, K. Sattler
Algorithmen und Datenstrukturen -- Eine Einf"uhrung mit Java
2001
[Bibtex]@book{DBIS:SaaSat01, Author = {Saake, G. and Sattler, K.}, Title = {Algorithmen und Datenstrukturen -- Eine Einf"uhrung mit Java}, Year = {2001} } - K. Sattler, O. Dunemann
SQL Database Primitives for Decision Tree Classifiers
Proc. of the 10th ACM CIKM Int. Conf. on Information and Knowledge Management, November 5--10, 2001, Atlanta, Georgia, USA, Pages 379-386, 2001
[Bibtex]@inproceedings{DBIS:SatDun01, Author = {Sattler, K. and Dunemann, O.}, Booktitle = {Proc. of the 10th ACM CIKM Int. Conf. on Information and Knowledge Management, November 5--10, 2001, Atlanta, Georgia, USA}, Pages = {379-386}, Title = {SQL Database Primitives for Decision Tree Classifiers}, Year = {2001} } - K. Sattler, E. Schallehn
A Data Preparation Framework based on a Multidatabase Language
Proc. of Int. Database Engineering and Applications Symposium (IDEAS 2001), Pages 219--228, 2001
[Bibtex]@inproceedings{DBIS:SatSch01, Author = {Sattler, K. and Schallehn, E.}, Booktitle = {Proc. of Int. Database Engineering and Applications Symposium (IDEAS 2001)}, Editor = {M. Adiba and C. Collet and B.P. Desai}, Pages = {219--228}, Title = {A Data Preparation Framework based on a Multidatabase Language}, Year = {2001} } - O. Dunemann, I. Geist, R. Jesse, G. Saake, K. Sattler
extscInFuse -- Eine datenbankbasierte Plattform f"ur die Informationsfusion
Datenbanksysteme in B"uro, Technik und Wissenschaft (BTW 2001), Pages 9-25, 2001
[Bibtex]@inproceedings{DBIS:DunGeiJes01, Author = {Dunemann, O. and Geist, I. and Jesse, R. and Saake, G. and Sattler, K.}, Booktitle = {Datenbanksysteme in B"uro, Technik und Wissenschaft (BTW 2001)}, Editor = {A.~Heuer and F.~Leymann and D.~Priebe}, Pages = {9-25}, Title = { extscInFuse -- Eine datenbankbasierte Plattform f"ur die Informationsfusion}, Year = {2001} } - I. Geist, K. Sattler, I. Schmitt
Combining a Formal with an Example-driven Approach for Data Integration
5. Workshop "F"oderierte Datenbanken", Berlin Oktober 2001 (Proceedings), 2001
[Bibtex]@inproceedings{DBIS:GeiSatSch01, Author = {Geist, I. and Sattler, K. and Schmitt, I.}, Booktitle = {5. Workshop ``F"oderierte Datenbanken'', Berlin Oktober 2001 (Proceedings)}, Title = {Combining a Formal with an Example-driven Approach for Data Integration}, Year = {2001} } - A. Heuer, G. Saake, K. Sattler
Datenbanken - kompakt
2001
[Bibtex]@book{DBIS:HeuSaaSat01, Author = {Heuer, A. and Saake, G. and Sattler, K.}, Title = {Datenbanken - kompakt}, Year = {2001} } - G. Saake, K. Sattler, S. Balko
Proceedings 1st Int. Workshop on Databases, Documents, and Information Fusion DBFusion 2001, Gommern, 3./4. May 2001
Fakult"at f"ur Informatik, Universit"at Magdeburg, Number 8, Preprint, 2001
[Bibtex]@techreport{DBIS:SaaSatBal01, Author = {Saake, G. and Sattler, K. and Balko, S.}, Institution = {Fakult"at f"ur Informatik, Universit"at Magdeburg}, Number = {8}, Title = {Proceedings 1st Int. Workshop on Databases, Documents, and Information Fusion DBFusion 2001, Gommern, 3./4. May 2001}, Type = {Preprint}, Year = {2001} } - K. Sattler, S. Conrad, G. Saake
Interactive Example-driven Integration and Reconciliation for Accessing Database Federations
Fakult"at f"ur Informatik, Universit"at Magdeburg, Number 11, Preprint, 2001
[Bibtex]@techreport{DBIS:SatConSaa01, Author = {Sattler, K. and Conrad, S. and Saake, G.}, Institution = {Fakult"at f"ur Informatik, Universit"at Magdeburg}, Number = {11}, Title = {Interactive Example-driven Integration and Reconciliation for Accessing Database Federations}, Type = {Preprint}, Year = {2001} } - K. Sattler, O. Dunemann, I. Geist, G. Saake, S. Conrad
Limiting Result Cardinalities for Multidatabase Queries using Histograms
BNCOD, Pages 152-167, LNCS, Volume 2097, 2001
[Bibtex]@inproceedings{DBIS:SatDunGei01, Author = {Sattler, K. and Dunemann, O. and Geist, I. and Saake, G. and Conrad, S.}, Booktitle = {BNCOD}, Pages = {152-167}, Series = {LNCS}, Title = {Limiting Result Cardinalities for Multidatabase Queries using Histograms}, Volume = {2097}, Year = {2001} }
Proceedings of PKDD-Workshop on "Database Support for KDD", 7.September 2001, Freiburg, Germany
http://www.informatik.uni-freiburg.de/~ml/ecmlpkdd/WS-Proceedings/w09/index.html, 2001
[Bibtex]@proceedings{DBIS:SaaSat01pkdd, Author = {}, Editor = {G. Saake and K. Sattler}, Note = {http://www.informatik.uni-freiburg.de/~ml/ecmlpkdd/WS-Proceedings/w09/index.html}, Title = {Proceedings of PKDD-Workshop on ``Database Support for KDD'', 7.September 2001, Freiburg, Germany}, Year = {2001} }- E. Schallehn, K. Sattler, G. Saake
Advanced Grouping and Aggregation for Data Integration
Proc. 10th International Conference on Information and Knowledge Management, CIKM'01, Atlanta, GA, Pages 547-549, 2001
[Bibtex]@inproceedings{DBIS:SchSatSaaCIKM01, Author = {Schallehn, E. and Sattler, K. and Saake, G.}, Booktitle = {Proc. 10th International Conference on Information and Knowledge Management, CIKM'01, Atlanta, GA}, Pages = {547-549}, Title = {Advanced Grouping and Aggregation for Data Integration}, Year = {2001} } - E. Schallehn, K. Sattler, G. Saake
Extensible Grouping and Aggregation for Data Reconciliation
Proc. 4th Int. Workshop on Engineering Federated Information Systems, EFIS'01, Berlin, Germany, 2001
[Bibtex]@inproceedings{DBIS:SchSatSaaEFIS01, Author = {Schallehn, E. and Sattler, K. and Saake, G.}, Booktitle = {Proc. 4th Int. Workshop on Engineering Federated Information Systems, EFIS'01, Berlin, Germany}, Title = {Extensible Grouping and Aggregation for Data Reconciliation}, Year = {2001} }
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