Cross-border journalism and public diplomacy. - In: The Palgrave handbook of cross-border journalism, (2023), S. 251-266
This chapter approaches cross-border journalism (CBJ) from the perspective of public diplomacy (PD). After an overview of the theoretical foundations of PD and its development in various regions of the world, the author outlines three perspectives in which public diplomacy deals with the content of cross-border journalism: (1) reactive presentation of national visibility and image, (2) proactive instruments such as international broadcasting and advocacy events to influence perceptions and create dialogues in foreign countries, and (3) a hybrid system with multidirectional information flow, social networks, and international collaborations. In conclusion, public diplomacy is increasingly taking advantage of the structural transformation of public sphere, although public diplomacy actors and media still need to strategically deal with controversies such as objectivity, inadequate dialogic communication, and legitimacy narratives.
https://doi.org/10.1007/978-3-031-23023-3_16
Cross-border journalism research and practice: an introduction. - In: The Palgrave handbook of cross-border journalism, (2023), S. 1-15
This introduction sets out the rationale of the Handbook, which provides a research-oriented overview of relevant theoretical and methodological approaches to the representation and analysis of cross-border journalism. In doing so, the editors first elaborate the history and development of cross-border journalism, enumerate various terms and concepts, and emphasize the relevance of the topic. The introduction then provides a synopsis of the Handbook’s six sections and 38 chapters, with brief summaries describing what each chapter focuses on and whether it takes more of a conceptual, empirical, or practical standpoint.
https://doi.org/10.1007/978-3-031-23023-3_1
Cross-border journalism and de-Westernization. - In: The Palgrave handbook of cross-border journalism, (2023), S. 67-81
Cross-border journalism (CBJ) has evolved from foreign correspondence, its dominant form for decades, to other forms like international advocacy journalism and global collaborative investigations, driven largely by the rapid development of technologies. Amid all this talk on an increasingly connected world, and on CBJ as part of the future of journalism, it is necessary to reflect: Is CBJ as described in European-North American literature really the reality for the rest of the world? How is current scholarship able to take stock of CBJ beyond the so-called mainstream West? This chapter looks at CBJ under the lens of critical de-Westernization by describing the realities of CBJ practice and research beyond the West, as well as the methodological and theoretical considerations in decentering knowledge production.
https://doi.org/10.1007/978-3-031-23023-3_5
Bridging distance with a collaborative telepresence robot for older adults - report on progress in the CO-HUMANICS project. - In: ISR Europe 2023: 56th International Symposium on Robotics, (2023), S. 346-353
In an aging society, the social needs of older adults, such as regular interactions and independent living, are crucial for their quality of life. However, due to spatial separation from their family and friends, it is difficult to maintain social relationships. Our multidisciplinary project, CO-HUMANICS, aims to meet these needs, even over long distances, through the utilization of innovative technologies, including a robot-based system. This paper presents the first prototype of our system, designed to connect family members or friends virtually present through a mobile robot with an older adult. The system incorporates bi-directional video telephony, remote control capabilities, and enhanced visualization methods. A comparison is made with other state-of-the-art robotic approaches, focusing on remote control capabilities. We provide details about the hard- and software components, e.g., a projector-based pointing unit for collaborative telepresence to assist in everyday tasks. Our comprehensive scene representation is discussed, which utilizes 3D NDT maps, enabling advanced remote navigation features, such as autonomously driving to a specific object. Finally, insights about past and concepts for future evaluation are provided to assess the developed system.
https://ieeexplore.ieee.org/document/10363093
Bericht über das 18. Pornfilmfestival vom 24. bis 29. Oktober 2023 in Berlin. - In: Zeitschrift für Sexualforschung, ISSN 1438-9460, Bd. 0 (2023), 0
https://doi.org/10.1055/a-2215-9152
Eye and face tracking in VR: avatar embodiment and enfacement with realistic and cartoon avatars. - In: MUM 2023, (2023), S. 270-278
Previous studies have explored the perception of various types of embodied avatars in immersive environments. However, the impact of eye and face tracking with personalized avatars is yet to be explored. In this paper, we investigate the impact of eye and face tracking on embodiment, enfacement, and the uncanny valley with four types of avatars using a VR-based mirroring task. We conducted a study (N=12) and created self-avatars with two rendering styles: a cartoon avatar (created in an avatar generator using a picture of the user’s face) and a photorealistic scanned avatar (created using a 3D scanner), each with and without eye and face tracking and respective adaptation of the mirror image. Our results indicate that adding eye and face tracking can be beneficial for certain enfacement scales (belonged), and we confirm that compared to a cartoon avatar, a scanned realistic avatar results in higher body ownership and increased enfacement (own face, belonging, mirror) - regardless of eye and face tracking. We critically discuss our experiences and outline the limitations of the applied hardware and software with respect to the provided level of control and the applicability for complex tasks such as displaying emotions. We synthesize these findings into a discussion about potential improvements for facial animation in VR and highlight the need for a better level of control, the integration of additional sensing and processing technologies, and an objective metric for comparing facial animation systems.
https://doi.org/10.1145/3626705.3627793
Exploring the use of social virtual reality conferences in higher education. - In: 2023 IEEE 2nd German Education Conference (GeCon), (2023), insges. 6 S.
Sparked by the recent growth of online and remote teaching formats, social virtual reality (Social VR) applications are being employed in higher education teaching. This eliminates the need for physical presence in one classroom and allows for increased accessibility of classes. More engaging distant virtual classrooms and extracurricular activities are made possible by Social VR applications like Mozilla Hubs (MH). We conducted a virtual conference in web-based MH as a cross-university collaboration for two game development courses for undergraduate and graduate students. We report on our organizational strategy and subsequent online survey evaluation of N = 29 attendees. We present solutions to problems that are frequently encountered, specifically in MH, while organizing virtual conferences.
https://doi.org/10.1109/GECon58119.2023.10295104
Eine Simulationsstudie zum Umgang mit fehlenden nominalen Daten. - Ilmenau : Technische Universität Ilmenau, Fakultät für Wirtschaftswissenschaften, Institut für Wirtschaftsinformatik, 2023. - 1 Online-Ressource (iii, 59 Seiten). - (Ilmenauer Beiträge zur Wirtschaftsinformatik ; 2023,1) ISBN 978-3-938940-66-2
Durch eine Imputation lassen sich fehlende Werte innerhalb einer unvollständigen Datenmatrix ersetzen, wodurch eine vollständige Datenmatrix entsteht. Auf dieser Grundlage können anschließend weitere Analysen und Untersuchungen durchgeführt werden. Die Güte der Imputation kann anhand verschiedener Kriterien bewertet werden, die wiederum von den Eigenschaften der Datenmatrix mit fehlenden Werten abhängen. Im Rahmen einer Simulationsstudie werden die Auswirkungen dieser Eigenschaften auf die Ergebnisse verschiedener Imputationsverfahren für nominale Daten untersucht. Neben etablierten Gütekriterien wird auch ein eigens konzipiertes Bewertungskriterium herangezogen, um die Qualität der Imputationen zu beurteilen. Die Ergebnisse dieser Studie verdeutlichen, dass die Wahl eines geeigneten Imputationsverfahrens von den spezifischen Eigenschaften der unvollständigen Datenmatrix sowie den angestrebten Untersuchungszielen abhängt. Ein Verfahren, dass für alle Eigenschaften und Ziele die besten Ergebnisse erzeugt, konnte nicht gefunden werden.
https://nbn-resolving.org/urn:nbn:de:gbv:ilm1-2023200311
Zeitgebers, time judgments, and VR: a constructive replication study. - In: 2023 IEEE International Symposium on Mixed and Augmented Reality adjunct, (2023), S. 1-2
Previous research has attempted to understand the influence of virtual reality (VR) on human perception of time, but neither a comprehensive understanding nor conclusive results have been achieved. To extend and continue research on this topic, we closely replicated a previous study and included new elements in a constructive replication study. To do this, we replicate the original setup and investigate the influence of workload and sun speed on time production. Contrary to previous findings, we did not find significant differences in virtual sun movements on time judgments. However, consistent with the original study, time perception in VR was affected by cognitive workload. In addition, we found that immersion in the virtual environment influenced time perception after VR. The contrasting results highlight the need for further research into the factors contributing to time perception in and after VR to fully explain the phenomenon of altered perception.
https://doi.org/10.1109/ISMAR-Adjunct60411.2023.00007
Cube-SSIM: a metric for evaluating 360-degree images as cube maps. - In: IEEE Xplore digital library, ISSN 2473-2001, (2023), S. 248-251
360-degree image data is a crucial aspect in graphics applications where they are typically used for lighting purposes. Fields like mixed reality generally rely on lighting estimation techniques to estimate the 360-degree environment. To evaluate such approaches, accurate image assessment in this domain is important. However, traditional image evaluation metrics like SSIM, PSNR, and IMED are problematic when analyzing 360-degree image data as they would require two-dimensional representations like equirectangular panoramas or unfolded cubes that introduce image distortions. In this paper, we address this problem by presenting Cube-SSIM, a variant of SSIM designed specifically for cube maps. For this, we modify SSIM to take the solid angles of cube map pixels into account which gives more consistent results than using SSIM for the individual cube faces. The computations can run efficiently on graphics hardware due to their native support for cube maps and no further image conversions are required. We show that our approach allows for more accurate results than other comparison metrics that largely depend on 2D images. While SSIM is especially important due to its wide usage, the modification can also be applied to other image metrics for which we include IMED as an example.
https://doi.org/10.1109/CW58918.2023.00043