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Auflistung nach Autor:in "Porzel, Robert"

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  • Zeitschriftenartikel
    An Agent-based Approach to Autonomous Logistic Processes
    (KI - Künstliche Intelligenz: Vol. 24, No. 2, 2010) Gehrke, Jan D.; Herzog, Otthein; Langer, Hagen; Malaka, Rainer; Porzel, Robert; Warden, Tobias
    This paper presents the research activities of the Collaborative Research Centre (CRC) 637 “Autonomous Cooperating Logistic Processes—A Paradigm Shift and its Limitations” at the University of Bremen. After a motivation of autonomous logistics as an answer to current trends in increasingly dynamic markets, we sketch the structure and aims of the interdisciplinary CRC. We present several interpretations of the central motive of autonomous control, pursued by sub-projects over the course of the first project period, and focus on an agent-based approach to autonomous logistics.
  • Konferenzbeitrag
    Breaking Barriers: Unveiling Trust Dynamics between Tangible and Graphical User Interfaces
    (Mensch und Computer 2024 - Workshopband, 2024) Jaros, Christian; Lau, Eric Hiu-Sing; Porzel, Robert; Döring, Tanja
    Technology continues to play a bigger role in everyday life. With emerging technologies (i.e., ChatGPT), people feel increasingly alienated by the complexity of such technologies. In this context, trust in new systems is not always given. By designing a tangible system, we address this issue and investigate whether users have more trust in a tangible user interface compared to a graphical user interface. Furthermore, we investigate whether the semantics of an interface (i.e. its appearance as a button or a padlock) impacts user trust. We conducted a user study in which participants were asked to interact with a simulated firewall software through different combinations of physicality and appearance of interfaces. Our results reveal a conditional effect of the interface physicality on user trust. Moreover, we found no evidence that the different appearances of the interface (button vs. key with lock) impact user trust.
  • mensch und computer 2013 - workshopband
    Strategy, Ownership and Space: The Logistics of Collaborative Interaction
    (Mensch & Computer 2013 - Workshopband, 2013) Porzel, Robert; Naveed, Adeel; Chen, Yuting; Herrlich, Marc
    Enabling collaborative work on multi-touch tables comes with many challenges for the design of tabletop systems. For example, multi-touch tables have been not standardized, tabletop groupware systems are built for various purposes and the diversity of task activities constitute some of the challenges for enabling natural collaborative human computer interaction on multi-touch tables. While many studies have been conducted on individual problems, aggregate guidelines for designing an appropriate tabletop groupware system that can adapt to variable conditions are still under construction. In this paper we contribute some insights toward more general guidelines via an empirical study that sought to untangle the interrelated effects of ownership, individual collaborative strategies and workspace usage.