@article{53813, author = {{Schmidt, Leonard and Yigitbas, Enes}}, journal = {{Proceedings of the ACM on Human-Computer Interaction, EICS}}, number = {{263}}, pages = {{31}}, title = {{{Development and Usability Evaluation of Transitional Cross-Reality Interfaces}}}, volume = {{8}}, year = {{2024}}, } @inproceedings{53814, author = {{Yigitbas, Enes and Schmidt, Maximilian and Bucchiarone, Antonio and Bassanelli, Simone and Engels, Gregor}}, booktitle = {{IEEE Global Engineering Education Conference 2024}}, title = {{{Gamification- and Virtual Reality-Based Learning Environment for UML Class Diagram Modeling}}}, year = {{2024}}, } @inproceedings{53821, author = {{Yigitbas, Enes and Kaltschmidt, Christian}}, booktitle = {{Proceedings of the 8th International Conference on Artificial Intelligence and Virtual Reality (AIVR’24)}}, publisher = {{Springer}}, title = {{{Effects of Human Avatar Representation in Virtual Reality on Inter-Brain Connections}}}, year = {{2024}}, } @inproceedings{53818, author = {{Krings, Sarah Claudia and Biermeier, Kai and Yigitbas, Enes}}, booktitle = {{Proceedings of the 10th International Working Conference on Human-Centered Software Engineering (HCSE'24)}}, title = {{{Interaction Techniques for Remote Maintenance in an AR Shared Environment}}}, year = {{2024}}, } @inproceedings{53820, author = {{Leichtweiß, Justus and Yigitbas, Enes}}, booktitle = {{Proceedings of the 12th International Conference on Serious Games and Applications for Health (SeGAH'24)}}, title = {{{An Exploratory Study of Fear-Inducing Factors in Virtual Reality Experiences}}}, year = {{2024}}, } @inproceedings{53817, author = {{Krois, Sebastian and Yigitbas, Enes}}, booktitle = {{Proceedings of the 10th International Working Conference on Human-Centered Software Engineering (HCSE'24)}}, title = {{{Prototyping Cross-Reality Escape Rooms}}}, year = {{2024}}, } @inproceedings{53819, author = {{Krings, Sarah Claudia and Yigitbas, Enes and Sauer, Stefan}}, booktitle = {{Proceedings of the 10th International Working Conference on Human-Centered Software Engineering (HCSE'24)}}, title = {{{Developing a VR Factory Walkthrough for Use in Schools}}}, year = {{2024}}, } @inproceedings{53816, abstract = {{Augmented (AR) and Virtual Reality (VR) technologies have been applied very broadly in the recent past. While prior work emphasizes the potential of these technologies in various application domains, the process of visual attention in and across the contexts of AR/VR environments is not exhaustively explored yet. By now, visual attention in AR/VR environments has majorly been studied by means of overt attention (i.e. saccadic eye movements), self-report, and process-related visual attention proxies (like reaction time). In this work, we analyze covert visual attention based on the (psychological) Theory of Visual Attention (TVA), which allows us to quantify theory-based interpretable properties of the visual attention process. For example, the TVA allows us to measure the overall processing speed. We instantiate this TVA-based framework with a 30-participant explorative within-subjects study. The results show a decisive difference in visual attention between Reality (i.e. the neutral condition) and Virtual Reality and a weak difference between Reality and Augmented Reality. We discuss the consequences of our findings and provide ideas for future studies.}}, author = {{Biermeier, Kai and Scharlau, Ingrid and Yigitbas, Enes}}, booktitle = {{Proceedings of the 17th International Conference on PErvasive Technologies Related to Assistive Environments (PETRA 2024)}}, keywords = {{Visual Attention, TVA, Cognitive Modelling, Bayesian Modelling, AR, VR}}, publisher = {{ACM}}, title = {{{Measuring Visual Attention Capacity Across xReality}}}, doi = {{10.1145/3652037.3652050}}, year = {{2024}}, } @inproceedings{55895, author = {{Yigitbas, Enes and Dell'Aquila, Alessio}}, booktitle = {{Proceedings of the 8th International Conference on Computer-Human Interaction Research and Applications (CHIRA’24) }}, publisher = {{Springer}}, title = {{{An Examination of Pre-School Children's Usage Behavior of Augmented Reality: Traditional vs. AR-Assisted LEGO Building}}}, year = {{2024}}, } @inproceedings{55896, author = {{Neumayr, Thomas and Yigitbas, Enes and Augstein, Mirjam and Herder, Eelco and Stojko, Laura and Strecker, Jannis}}, booktitle = {{Proceedings of the Mensch & Computer (2024)}}, title = {{{ABIS 2024 – 28th International Workshop on Personalization and Recommendation}}}, year = {{2024}}, } @inproceedings{55897, author = {{Mazur, Janet and Yigitbas, Enes}}, booktitle = {{Proceedings of the 28th International Workshop on Personalization and Recommendation}}, title = {{{Augmented Reality-Assisted Multi-Robot Programming with Collision Warning }}}, year = {{2024}}, } @book{55898, author = {{Fazal-Baqaie, Masud and Linssen, Oliver and Volland, Alexander and Yigitbas, Enes and Engstler, Martin and Bertram, Martin and Hanser, Eckhart}}, title = {{{Projektmanagement Und Vorgehensmodelle 2024 – Neues Arbeiten in Projekten – Teamarbeit neu interpretiert}}}, year = {{2024}}, } @article{54277, author = {{Herder, Eelco and Stojko, Laura and Strecker, Jannis and Neumayr, Thomas and Yigitbas, Enes and Augstein, Mirjam}}, journal = {{i-com - Journal of Interactive Media, Special Issue on “The Future of Human-Computer Interaction” }}, title = {{{Towards New Realities: Implications of Personalized Online Layers in Our Daily Lives}}}, year = {{2024}}, } @techreport{57521, author = {{Kundisch, Dennis}}, pages = {{30 -- 33}}, title = {{{Warum werden B2B-Online-Bewertungen geschrieben?}}}, volume = {{2}}, year = {{2024}}, } @book{47547, editor = {{Kalenborn, Axel and Fazal-Baqaie, Masud and Linssen, Oliver and Volland, Alexander and Yigitbas, Enes and Engstler, Martin and Bertram, Martin}}, publisher = {{Gesellschaft für Informatik e.V}}, title = {{{Projektmanagement Und Vorgehensmodelle 2023 - Nachhaltige IT-Projekte}}}, volume = {{Vol. P340}}, year = {{2023}}, } @inproceedings{48368, abstract = {{Low-code development platforms (LCDPs) recently sparked interest in both academia and industry, promising to speed up software development and make it accessible to users with little or no programming experience. Thus, the mass-development of software applications that are custom-made to the tasks, skills, and preferences of end users is potentially enabled. Although different LCDPs have been analysed with respect to their functionality and applied to exemplary case studies in recent work, there is a shortage of experience reports in which LCDPs are used to digitize business processes in small and medium manufacturing enterprises. In this paper, we therefore summarize our experience from supporting industry partners to identify business processes that are suitable for being implemented with low-code technologies and to select an LCDP that meets the requirements of the business process while aligning with the overall digitization strategy of the respective company. We also present the opportunities and challenges of the low-code approach as perceived by industry partners. In summary, the low-code approach should be seen as an essential factor for the digitization of business processes in small and medium manufacturing companies.}}, author = {{Weidmann, Nils and Kirchhoff, Jonas and Sauer, Stefan}}, publisher = {{Springer}}, title = {{{Digitizing Processes in Manufacturing Companies via Low-Code Software (to appear)}}}, year = {{2023}}, } @article{51266, abstract = {{Cooperative Driving requires ultra-reliable communications, and it is now clear that no single technology will ever be able to satisfy such stringent requirements, if only because active jamming can kill (almost) any wireless technology. Cooperative driving with multiple communication technologies which complement each other opens new spaces for research and development, but also poses several challenges. The work we present tackles the fallback and recovery mechanisms that the longitudinal controlling system of a platoon of vehicles can implement as a distributed system with multiple communication interfaces. We present a protocol and procedure to correctly compute the safe transition between different controlling algorithms, down to autonomous (or manual) driving when no communication is possible. To empower the study, we also develop a new version of PLEXE, which is an integral part of this contribution as the only Open Source, free simulation tool that enables the study of such systems with a modular approach, and that we deem offers the community the possibility of boosting research in this field. The results we present demonstrate the feasibility of safe fallback, but also highlight that such complex systems require careful design choices, as naïve approaches can lead to instabilities or even collisions, and that such design can only be done with appropriate in-silico experiments.}}, author = {{Segata, Michele and Lo Cigno, Renato and Hardes, Tobias and Heinovski, Julian and Schettler, Max and Bloessl, Bastian and Sommer, Christoph and Dressler, Falko}}, issn = {{1536-1233}}, journal = {{IEEE Transactions on Mobile Computing}}, number = {{8}}, pages = {{4792–4806}}, publisher = {{IEEE}}, title = {{{Multi-Technology Cooperative Driving: An Analysis Based on PLEXE}}}, doi = {{10.1109/TMC.2022.3154643}}, volume = {{22}}, year = {{2023}}, } @inproceedings{51264, abstract = {{Platooning is a promising application in the field of vehicular networks. It has the potential to improve traffic flow, but also road safety. However, unreliable communication has strong negative effects on platoon stability and, thus, safety on roads. To improve reliability, in this work, we propose using multi-hop communication for platooning using the Decode and Forward (DF) Full-Duplex Relaying (FDR) scheme together with beamforming. We use computer simulations to demonstrate that FDR latency has no observable negative effect on string stability or safety even while performing an emergency brake. We further show that this combined approach reaches a constant Packet Delivery Ratio (PDR) of 100 % even in situations with high interference and/or congestion, where traditional approaches fail.}}, author = {{Hardes, Tobias and Klingler, Florian and Sommer, Christoph}}, booktitle = {{IEEE Wireless Communications and Networking Conference 2023 (WCNC 2023)}}, location = {{Glasgow, Scotland, UK}}, publisher = {{IEEE}}, title = {{{Improving Platooning Safety with Full Duplex Relaying and Beamforming}}}, doi = {{10.1109/WCNC55385.2023.10118843}}, year = {{2023}}, } @article{51267, abstract = {{We study the suitability of Unmanned Aerial Vehicles (UAVs) as purely opportunistic airborne virtual network infrastructure to support urban wireless networks, specifically in two Vehicle-to-Everything (V2X) use cases: First, UAVs being used as relays for cooperative awareness applications; second, UAVs being used to coordinate channel access for platooning in urban areas. We do not require that these UAVs alter trajectory nor speed from those of their random, unrelated primary missions, so that these additional tasks can be executed with close-to-zero impact on the execution of their primary missions. Based on extensive computer simulations we show that, within a wide band of acceptable speeds, flight routes (up to a standard deviation of 300 m from the optimum) as well as altitudes, opportunistic relaying of transmissions via UAVs can yield a benefit to system performance that is on the same order of magnitude as that of optimally deployed UAVs. We further show that an opportunistic channel access control can reduce the total number of packet collisions by approx. 86 % compared to a scenario without any UAVs. Moreover, much of the reduction in impact due to suboptimal missions can be recovered simply by moderately increasing the number of UAVs.}}, author = {{Hardes, Tobias and Sommer, Christoph}}, issn = {{0140-3664}}, journal = {{Elsevier Computer Communications}}, publisher = {{Elsevier}}, title = {{{Opportunistic Airborne Virtual Network Infrastructure for Urban Wireless Networks}}}, doi = {{10.1016/j.comcom.2023.06.003}}, year = {{2023}}, } @inproceedings{51265, abstract = {{Many exciting future research topics in the field of Cooperative Autonomous Vehicles (CAVs) require the simulation of both connectivity and automation components. However, existing simulation tools focus on only one of these two aspects while making idealistic assumptions about the other. In this work, we motivate the use of established libraries such as gRPC to couple existing independent simulation tools tailored to either connectivity or automation, and demonstrate the feasibility of such an approach. We also describe an Open Source reference implementation coupling CARLA and Veins.}}, author = {{Hardes, Tobias and Turcanu, Ion and Sommer, Christoph}}, booktitle = {{14th IEEE Vehicular Networking Conference (VNC 2023)}}, issn = {{2157-9865}}, location = {{Istanbul, Turkey}}, publisher = {{IEEE}}, title = {{{Poster: A Case for Heterogenous Co-Simulation of Cooperative and Autonomous Driving}}}, doi = {{10.1109/VNC57357.2023.10136319}}, year = {{2023}}, }