Dr.-Ing. Stefan Hagedorn
Technische Universität Ilmenau
Fakultät für Informatik und Automatisierung
FG Datenbanken und Informationssysteme
Postfach 100 565
D-98684 Ilmenau
Phone: +49 (0) 3677 69 4539
Fax: +49 (0) 3677 69 4541
E-Mail: stefan.hagedorn [at] tu-ilmenau.de
Raum: Zusebau 3088
Stefan Hagedorn graduated from Technische Universität Ilmenau with a degree in Computer Science (Diplom) in 2010.
From 2010 to 2012 Stefan worked as a software developer at NT Neue Technologie AG in Erfurt.
In September 2012 he joined the Databases and Information Systems Group at TU Ilmenau. During this time, he worked on several projects in the fields of Semantic Web technologies, spatial data processing, and Big Data. In 2020 he received his PhD for his dissertation "Efficient Processing of Large-scale Spatio-temporal Data".
Since September 2020 he is the branch manager of the Thüringer Zentrum für Lernende Systeme und Robotik (TZLR), working on supporting Thuringian companies and research institutes with their activities in the fields of artificial intelligence, machine learning, Big Data/Data Science, and robotics.
2021
- Stefan Hagedorn, Steffen Kläbe, Kai-Uwe Sattler: Putting Pandas in a Box. CIDR2021
- Stefan Hagedorn, Steffen Kläbe, Kai-Uwe Sattler: Conquering a Panda's weaker self - Fighting laziness with laziness.EDBT2021: 670-673
- Steffen Kläbe, Stefan Hagedorn: Applying Machine Learning Models to Scalable DataFrames. BTW2021: 195-214
2020
- Stefan Hagedorn: Efficient processing of large-scale spatio-temporal data. Technische Universität Ilmenau, Germany, TU Ilmenau2020
- Hani Al-Sayeh, Stefan Hagedorn, Kai-Uwe Sattler: A gray-box modeling methodology for runtime prediction of Apache Spark jobs.Distributed Parallel Databases38(4): 819-839 (2020)
- Stefan Hagedorn: When sweet and cute isn't enough anymore: Solving scalability issues in Python Pandas with Grizzly.CIDR2020
2019
- Stefan Hagedorn, Oliver Birli, Kai-Uwe Sattler: Processing Large Raster and Vector Data in Apache Spark.BTW2019: 551-554
- Stefan Hagedorn, Kai-Uwe Sattler: Peaks and the Influence of Weather, Traffic, and Events on Particulate Pollution.BTW (Workshops)2019: 301-302
2018
- Stefan Hagedorn, Kai-Uwe Sattler: Cost-Based Sharing and Recycling of (Intermediate) Results in Dataflow Programs.ADBIS2018: 185-199
2017
- Stefan Hagedorn, Philipp Götze, Kai-Uwe Sattler: The STARK Framework for Spatio-Temporal Data Analytics on Spark.BTW2017: 123-142
- Stefan Hagedorn, Philipp Götze, Kai-Uwe Sattler: Big Spatial Data Processing Frameworks: Feature and Performance Evaluation.EDBT2017: 490-493
- Stefan Hagedorn, Timo Räth:Efficient spatio-temporal event processing with STARK.EDBT2017: 570-573
2016
- Stefan Hagedorn, Philipp Götze, Omran Saleh, Kai-Uwe Sattler: Stream processing platforms for analyzing big dynamic data.it Inf. Technol.58(4): 195-205 (2016)
- Andreas Spitz, Johanna Geiß, Michael Gertz, Stefan Hagedorn, Kai-Uwe Sattler: Refining imprecise spatio-temporal events: a network-based approach.GIR2016: 5:1-5:10
- Stefan Hagedorn, Kai-Uwe Sattler: Piglet: Interactive and Platform Transparent Analytics for RDF & Dynamic Data.WWW (Companion Volume)2016: 187-190
2015
- Omran Saleh, Stefan Hagedorn, Kai-Uwe Sattler: Complex Event Processing on Linked Stream Data.Datenbank-Spektrum15(2): 119-129 (2015)
- Stefan Hagedorn, Kai-Uwe Sattler, Michael Gertz: A Framework for Scalable Correlation of Spatio-temporal Event Data.BICOD2015: 9-15
- Stefan Hagedorn, Katja Hose, Kai-Uwe Sattler: SPARQling Pig - Processing Linked Data with Pig Latin.BTW2015: 279-298
- Stefan Hagedorn, Kai-Uwe Sattler, Michael Gertz: Large-scale Analysis of Event Data.GvD2015: 90-95
2014
- Stefan Hagedorn, Kai-Uwe Sattler: LODHub - A platform for sharing and integrated processing of linked open data.ICDE Workshops2014: 260-262
- Stefan Hagedorn, Katja Hose, Kai-Uwe Sattler, Jürgen Umbrich: Resource Planning for SPARQL Query Execution on Data Sharing Platforms.COLD2014
- Stefan Hagedorn, Kai-Uwe Sattler: LODHub - A Platform for Sharing and Analyzing large-scale Linked Open Data.International Semantic Web Conference (Posters & Demos)2014: 181-184
2013
- Felix Beier, Stephan Baumann, Heiko Betz, Stefan Hagedorn, Timo Wagner: Gesture-Based Navigation in Graph Databases - The Kevin Bacon Game.BTW2013: 511-514
- Stefan Hagedorn, Kai-Uwe Sattler: Discovery querying in linked open data.EDBT/ICDT Workshops2013: 38-44
- Stefan Hagedorn, Kai-Uwe Sattler: Efficient Parallel Processing of Analytical Queries on Linked Data.OTM Conferences2013: 452-469
- Kai-Uwe Sattler, Stephan Baumann, Felix Beier, Heiko Betz, Francis Gropengießer, Stefan Hagedorn: Proceedings of the 25th GI-Workshop "Grundlagen von Datenbanken 2013", Ilmenau, Germany, May 28 - 31, 2013.CEUR Workshop Proceedings 1020, CEUR-WS.org2013[contents]
2011
- Daniel Klan, Stefan Hagedorn, Steffen Hirte, Heiko Betz, Firas Kassem, Kai-Uwe Sattler: Topiek - Dokumentenmanagementsystem trifft semantischesWeb.LWA2011: 46-47
My research interests include:
- Big Data management and processing
- spatial and temporal data processing
- machine learning in databases