@inproceedings{66864,
  abstract     = {{When signing digital documents, users often insert scanned or digitized handwritten signatures, which provide no assurance of a document’s authenticity and integrity. Cryptographic signatures offer such guarantees, but are rarely adopted due to persistent usability challenges. This paper explores the potential of digital identity wallets for securely and intuitively signing documents with verified personal data. To this end, we developed IdentitySign, an open-source prototype application, and evaluated it through a user study (N=74). Our results indicate good usability but also reveal potential pitfalls for this and similar wallet-based signature applications, such as unjustified trust in documents with signatures that are cryptographically valid but signed by the wrong signer. We provide guidelines and insights for creating user-centric, secure, and trustworthy digital signage applications using identity wallets.}},
  author       = {{Last, Yorick}},
  booktitle    = {{Proceedings of the Twenty-Second Symposium on Usable Privacy and Security}},
  location     = {{Hannover, Germany}},
  title        = {{{IdentitySign: Design and User Study of a Prototype Application for Digitally Signing Documents Using an Identity Wallet}}},
  year         = {{2026}},
}

@article{54450,
  abstract     = {{In the last decade, there has been increasing interest in allowing users to understand how the predictions of machine-learned models come about, thus increasing transparency and empowering users to understand and potentially contest those decisions.Dialogue-based approaches, in contrast to traditional one-shot eXplainable Artificial Intelligence (XAI) methods, facilitate interactive, in-depth exploration through multi-turn dialogues, simulating expert conversations. This paper reviews the current state of dialogue-based XAI, presenting a systematic review of 1,339 publications, narrowed down to 14 based on inclusion criteria. We explore theoretical foundations of the systems, propose key dimensions along which different solutions to dialogue-based XAI differ, and identify key use cases, target audiences, system components, and the types of supported queries and responses. Furthermore, we investigate the current paradigms by which systems are evaluated and highlight their key limitations. Key findings include identifying the main use cases, objectives, and audiences targeted by dialogue-based XAI methods, and summarize the main types of questions and information needs. Beyond discussing avenues for future work, we present a meta-architecture for these systems from existing literature and outlined prevalent theoretical frameworks.}},
  author       = {{Mindlin, Dimitry and Beer, Fabian and Sieger, Leonie Nora and Heindorf, Stefan and Cimiano, Philipp and Esposito, Elena and Ngonga Ngomo, Axel-Cyrille}},
  journal      = {{Artificial Intelligence Review}},
  number       = {{3}},
  publisher    = {{Springer}},
  title        = {{{Beyond One-Shot Explanations: A Systematic Literature Review of Dialogue-Based XAI Approaches}}},
  doi          = {{10.1007/s10462-024-11007-7}},
  volume       = {{58}},
  year         = {{2025}},
}

@article{59512,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>Große Sprachmodelle wie GPT-4 bieten erhebliche Potenziale für das Systems Engineering. Prompt-Engineering ermöglicht einen flexiblen Einsatz im Anforderungsmanagement, Systementwurf und in der Integration, Verifikation und Validierung ohne aufwendiges Modelltraining. Die Formulierung von Prompts und die Anwendung fortschrittlicher Techniken erfordern jedoch tiefes Domänenwissen. Der Beitrag zeigt Potenziale und Herausforderungen dieser Technik auf und illustriert praktische Anwendungsbeispiele</jats:p>}},
  author       = {{Hovemann, Aschot and Bita, Isaac Mpidi and Aldade, Abed Alrahman and von Heißen, Oliver and Dumitrescu, Roman}},
  issn         = {{2511-0896}},
  journal      = {{Zeitschrift für wirtschaftlichen Fabrikbetrieb}},
  number       = {{s1}},
  pages        = {{101--106}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{Prompt Engineering im Systems Engineering}}},
  doi          = {{10.1515/zwf-2024-0139}},
  volume       = {{120}},
  year         = {{2025}},
}

@article{59513,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>The increasing complexity of modern technical systems necessitates innovative approaches such as Model-Based Systems Engineering (MBSE). In this context, using Artificial Intelligence (AI) emerges as a key enabler for practical application and efficiency improvement. This article introduces a maturity model for AI-based assistance systems in MBSE. It helps companies assess their current automation level in MBSE activities, providing a foundation for strategic planning of process improvements.</jats:p>}},
  author       = {{Bernijazov, Ruslan and Dumitrescu, Roman and Hanke, Fabian and von Heißen, Oliver and Kaiser, Lydia and Tissen, Denis}},
  issn         = {{2511-0896}},
  journal      = {{Zeitschrift für wirtschaftlichen Fabrikbetrieb}},
  number       = {{s1}},
  pages        = {{96--100}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{AI-Augmented Model-Based Systems Engineering}}},
  doi          = {{10.1515/zwf-2024-0123}},
  volume       = {{120}},
  year         = {{2025}},
}

@inproceedings{59514,
  author       = {{Humpert, Lynn and Zagatta, Kristin and Anacker, Harald and Dumitrescu, Roman}},
  booktitle    = {{Proceedings of the 2024 7th International Conference on Computational Intelligence and Intelligent Systems}},
  publisher    = {{ACM}},
  title        = {{{Systems Engineering and Validation: A systematic literature review}}},
  doi          = {{10.1145/3708778.3708793}},
  year         = {{2025}},
}

@misc{59624,
  author       = {{Showmik, Md Jannatul Baki}},
  title        = {{{Enhancing Blockchain Efficiency via Median Rule}}},
  year         = {{2025}},
}

@inproceedings{59835,
  author       = {{Hustermeier, Lennart and Yigitbas, Enes}},
  booktitle    = {{Proceedings of the 20th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2025)}},
  publisher    = {{Springer}},
  title        = {{{A Novel Approach for Controlling Drone Swarms: Integrating LLMs and Augmented Reality}}},
  year         = {{2025}},
}

@inproceedings{59840,
  abstract     = {{The Semantic Web and Graph Database communities have developed three distinct schema languages for RDF and graph-structured data: SHACL, ShEx, and PG-Schema. Each language has its unique approach to defining constraints and validating graph data. In this work, we provide formal, concise definitions of the core components of each of these schema languages. We employ a uniform framework to facilitate a comprehensive comparison between the languages and identify a common set of functionalities, shedding light on both overlapping and distinctive features of the three languages.
}},
  author       = {{Ahmetaj, Shqiponja and Boneva, Iovka and Hidders, Jan and Hose, Katja and Jakubowski, Maxime and Labra Gayo, Jose Emilio and Martens, Wim and Mogavero, Fabio and Murlak, Filip and Okulmus, Cem and Polleres, Axel and Savković, Ognjen and Šimkus, Mantas and Tomaszuk, Dominik}},
  booktitle    = {{Proceedings of the ACM on Web Conference 2025}},
  location     = {{Sidney, Australia}},
  pages        = {{8--12}},
  publisher    = {{ACM}},
  title        = {{{Common Foundations for SHACL, ShEx, and PG-Schema}}},
  doi          = {{10.1145/3696410.3714694}},
  year         = {{2025}},
}

@inproceedings{59833,
  author       = {{Wüppelmann, Dennis and Yigitbas, Enes}},
  booktitle    = {{Proceedings of the 29th International Conference on Evaluation and Assessment in Software Engineering (EASE 2025)}},
  publisher    = {{ACM}},
  title        = {{{SecCityVR: Visualization and Collaborative Exploration of Software Vulnerabilities in Virtual Reality}}},
  year         = {{2025}},
}

@inproceedings{59879,
  author       = {{Wüppelmann, Dennis and Krings, Sarah Claudia and Yigitbas, Enes}},
  booktitle    = {{Proceedings of the 11th International Conference on Virtual Reality (ICVR 2025)}},
  publisher    = {{IEEE}},
  title        = {{{SMART-EAT: Towards Sustainable Nutrition Education and Decision Support using XR}}},
  year         = {{2025}},
}

@inproceedings{59824,
  abstract     = {{HTTPS composes large parts of today’s Internet traffic and has long been subject to censorship efforts in different countries. While censors analyze the Transport Layer Security (TLS) protocol to block encrypted HTTP traffic, censorship circumvention efforts have primarily focused on other protocols such as TCP. In this paper, we hypothesize that the TLS protocol offers previously unseen opportunities for censorship circumvention techniques. We tested our hypothesis by proposing possible censorship circumvention techniques that act on the TLS protocol. To validate the effectiveness of these techniques, we evaluate their acceptance by popular TLS servers and successfully demonstrate that these techniques can circumvent censors in China and Iran. In our evaluations, we discovered 38—partially standard-compliant—distinct censorship circumvention techniques, which we could group into 11 unique categories. Additionally, we provide novel insights into how China censors TLS traffic by presenting evidence of at least three distinct censorship appliances. We suspect that other parts of China’s censorship apparatus and other censors exhibit similar structures and advocate future censorship research to anticipate them. With this work, we hope to aid people affected by censorship and stimulate further
research into censorship circumvention using cryptographic protocols.}},
  author       = {{Niere, Niklas and Lange, Felix and Merget, Robert and Somorovsky, Juraj}},
  booktitle    = {{2025 IEEE Symposium on Security and Privacy (SP)}},
  location     = {{San Francisco}},
  title        = {{{Transport Layer Obscurity: Circumventing SNI Censorship on the TLS-Layer}}},
  doi          = {{10.1109/SP61157.2025.00151}},
  year         = {{2025}},
}

@inbook{60156,
  author       = {{Ködding, Patrick and Jahn, Mathis and Dumitrescu, Roman and Koldewey, Christian}},
  booktitle    = {{New Digital Work II - Digital Sovereignty of Companies and Organizations}},
  editor       = {{Schmuntzsch, Ulrike and Shajek, Alexandra and Hartmann, Ernst Andreas}},
  isbn         = {{9783031699931}},
  pages        = {{93--108}},
  publisher    = {{Springer Nature Switzerland}},
  title        = {{{Challenges for Scenario-Based Foresight and Potential for Digital Technologies: Insights from Practice}}},
  doi          = {{10.1007/978-3-031-69994-8}},
  year         = {{2025}},
}

@inproceedings{60160,
  author       = {{Förster, Felix and Bausen, Steffen and Bernijazov, Ruslan and Koldewey, Christian and Dumitrescu, Roman and Bursac, Nikola}},
  booktitle    = {{Stuttgarter Symposium für Produktentwicklung SSP 2025}},
  editor       = {{Hölzle, Katharina and Kreimeyer, Matthias and Roth, Daniel and Maier, Thomas and Riedel, Oliver}},
  location     = {{Stuttgart}},
  pages        = {{102--113}},
  publisher    = {{Fraunhofer IAO, Stuttgart}},
  title        = {{{Chances of smart Views: Integration of Stakeholder perspectives using videobased Views in MBSE}}},
  doi          = {{10.18419/opus-16366}},
  year         = {{2025}},
}

@phdthesis{63606,
  abstract     = {{Heutzutage sind datengetriebene digitale Artefakte aus unserem Alltag nicht mehr wegzudenken. Bei der Interaktion mit datengetriebenen Artefakten spielen Daten eine zentrale Rolle, unter anderem persönliche Daten von Schüler:innen, die solche Systeme nutzen. Aus der Perspektive informatischer Bildung besteht ein wichtiges Ziel darin, Schüler:innen zu befähigen, datengetriebene digitale Artefakte aus ihrem Alltag zu verstehen, denen gegenüber informierte und reflektierte Positionen einzunehmen und die digitale Welt aktiv mitzugestalten. Das setzt etwa voraus, dass Schüler:innen das Gelernte aus dem Informatikunterricht in ihren alltäglichen Interaktionen mit datengetriebenen digitalen Artefakten anwenden können, um sich mit diesen Artefakten und der Rolle von Daten auseinanderzusetzen und darauf aufbauend selbstbestimmt, mündig und verantwortungsvoll zu handeln. Für diese Ziele informatischer Bildung wird in dieser Arbeit das fachdidaktische Konzept Datenbewusstsein entwickelt und evaluiert. Datenbewusstsein stellt Schüler:innen ein sogenanntes Erklärmodell als Zugang zur datengetriebenen Welt bereit und zielt darauf ab, dass sie damit ihre eigene Rolle in Interaktionen mit datengetriebenen digitales Artefakten sowie die Rolle von Daten darin wahrnehmen, verstehen und reflektieren können. Dadurch soll Datenbewusstsein zu einer selbstbestimmten, mündigen und verantwortungsvollen Handlungsfähigkeit in einer datengetriebenen Welt beitragen. Die Entwicklung und Evaluation des Konzepts orientiert sich am Design-Based Research Ansatz, wofür aus informatikdidaktischer Perspektive ein eigenes Vorgehensmodell entwickelt wurde. Das Forschungsvorhaben hat zwei übergeordnete Ziele: Erstens soll eine theoretische Konzeption von Datenbewusstsein für informatische Bildung und zweitens ein didaktischer Ansatz zur Förderung von Datenbewusstsein entwickelt werden. In drei Zyklen wird die Förderung von Datenbewusstsein im Informatikunterricht mithilfe von Unterrichtsinterventionen empirisch untersucht. Schwerpunkte liegen dabei unter anderem auf dem Verständnis der Schüler:innen von der Rolle von Daten in datengetriebenen digitalen Artefakten, der Förderung ihrer Auseinandersetzung mit solchen digitalen Artefakten im Alltag sowie dem Beitrag zur Entwicklung ihrer Handlungsfähigkeit. Die Hauptergebnisse dieser Arbeit liegen in der Konzeption von Datenbewusstsein sowie im entwickelten didaktischen Ansatz zum Lernen von Erklärmodellen im Informatikunterricht. Danach lernen Schüler:innen im Unterricht ein Erklärmodell für Datenbewusstsein und wenden es auf alltägliche Beispiele für datengetriebene digitale Artefakte an. Die empirischen Ergebnisse werden zeigen, dass Schüler:innen das Erklärmodell verstehen, sie darin eine subjektive Bedeutsamkeit für ihren Alltag erkennen und es ihre Handlungsfähigkeit in alltäglichen Situationen mit datengetriebenen digitalen Artefakten fördern kann.}},
  author       = {{Höper, Lukas}},
  title        = {{{Entwicklung und Evaluation des Konzepts Datenbewusstsein für informatische Bildung}}},
  doi          = {{https://doi.org/10.17619/UNIPB/1-2420}},
  year         = {{2025}},
}

@inproceedings{61505,
  author       = {{Yigitbas, Enes and Kröker, Leon}},
  booktitle    = {{Proceedings of the 17th International Conference on Ubiquitous Computing and Ambient Intelligence (UCAmI 2025)}},
  publisher    = {{Springer}},
  title        = {{{Bridging the Reality-Virtuality Gap: Evaluating Attention Markers in a Cross-Reality Application for Improved User Coordination}}},
  year         = {{2025}},
}

@inproceedings{61503,
  author       = {{Yigitbas, Enes and Agha, Ali Amin}},
  booktitle    = {{Proceedings of the 17th International Conference on Ubiquitous Computing and Ambient Intelligence (UCAmI 2025) }},
  publisher    = {{Springer}},
  title        = {{{Gamification and Physiological Feedback: A Novel Approach to Reducing Glossophobia in Virtual Reality Environments}}},
  year         = {{2025}},
}

@techreport{63633,
  author       = {{Eimer, Theresa and Schäpermeier, Lennart and Biedenkapp, André and Tornede, Alexander and Kotthoff, Lars and Leyman, Pieter and Feurer, Matthias and Eggensperger, Katharina and Maile, Kaitlin and Tornede, Tanja and Kozak, Anna and Xue, Ke and Wever, Marcel Dominik and Baratchi, Mitra and Pulatov, Damir and Trautmann, Heike and Kashgarani, Haniye and Lindauer, Marius}},
  title        = {{{Best Practices For Empirical Meta-Algorithmic Research: Guidelines from the COSEAL Research Network}}},
  doi          = {{DOI:10.48550/arXiv.2512.16491}},
  year         = {{2025}},
}

@inproceedings{61506,
  author       = {{Karakaya, Kadiray and Klauke, Jonas and Yigitbas, Enes}},
  booktitle    = {{Proceedings of the 3rd International Workshop on Virtual and Augmented Reality Software Engineering (VARSE) @ ASE 2025 }},
  title        = {{{Toward Static Analysis of Immersive Attacks}}},
  year         = {{2025}},
}

@inproceedings{59836,
  author       = {{Krois, Sebastian  and Scharke, Kevin and Yigitbas, Enes and Oevel, Gudrun}},
  booktitle    = {{10th International Symposium on End-User Development (IS-EUD 2025) }},
  title        = {{{A VR End-User Development Toolbox for Media Study Students - An Initial Experience Report}}},
  year         = {{2025}},
}

@techreport{63650,
  author       = {{Kaufmann, Jonas and Schreiner, Nick and Koldewey, Christian and Fichtler, Timm and Sommer, Franziska and Sedlmeier, Joachim and Hocken, Christian and Rabe, Martin and Kühn, Arno}},
  title        = {{{Breaking Barriers: Implementing IoT-enabled Smart Services for Competitive Advantage}}},
  doi          = {{10.13140/RG.2.2.19531.50723}},
  year         = {{2025}},
}