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Auflistung nach Autor:in "Schlegel, Thomas"

1 - 10 von 28
  • Textdokument
    1st Workshop on Evaluating Intelligent and Ubiquitous Mobility Systems
    (INFORMATIK 2020, 2021) Titov, Waldemar; Trefzger, Mathias; Schlegel, Thomas
    Evaluation of peoples' mobility and intermodal transport is crucial for understanding mobility and traffic in general and leads to new challenges from the perspective of computer science and especially Human-Computer Interaction.
  • Textdokument
    A Framework for Controlling Robots via Brain-Computer Interfaces
    (Mensch & Computer 2014 - Workshopband, 2014) Seiger, Ronny; Nicolai, Tobias; Schlegel, Thomas
    The application presented in this paper employs a brain-computer interface for controlling a service robot in an ambient assisted living setting. The application is based on a flexible software framework that allows for the on-the-fly definition of event-to-action mappings. It provides means for integrating interaction events from multiple sources and thereby facilitates the rapid development and test of interaction concepts for multi-modal interactions.
  • Textdokument
    Analysis and Comparison of the Gaze Behavior of E-Scooter Drivers and Cyclists
    (INFORMATIK 2020, 2021) Trefzger, Mathias; Titov, Waldemar; Schlegel, Thomas
    In this paper, we contribute an eye tracking study to evaluate the gaze behavior of e-scooter drivers and cyclists on high and low quality road surfaces. We recorded the surface quality with sensors and put the different surfaces in relation to the gaze behavior. We recorded eye movements of the participants and performed an Area of Interest (AOI) sequence analysis to identify gaze patterns. Found sequences show that on the high quality surface participants focused most commonly the distant road section and then shifted to nearer sections. Individual advantageous gaze sequences are omitted if the surface is poor. We found a significant difference in the attention distribution of the two means of transport. In addition, we can confirm previous results showing that low quality road surfaces cause the gaze to shift forward. However, the participants did not adapt their speed to the worse surface.
  • Konferenzbeitrag
    A Cross-Disciplinary Process Modelling Language for Validating Reconfigured Production Processes
    (Modellierung 2022, 2022) Koch, Sandro; Wunderlich, Tim; Hansert, Jonas; Schlegel, Thomas; Ihlenfeldt, Steffen; Heinrich, Robert
    Modelling and reconfiguration of production processes require knowledge across different domains. This in-depth knowledge is necessary to avoid possible side effects that could threaten the production plant, the workpiece or the worker. Therefore, process modelling approaches allow adding additional data to the steps of a process. Such additions can be constraints, which need to be fulfilled before a step can be executed. Upon reconfiguration of production processes, these constraints need to be validated to ensure that the objective of the process is still met. However, this task demands expertise in the field of process modelling as well as in the domain of the production process and the production plant. To the best of our knowledge, state-of-the-art production process modelling approaches are unable to determine the semantic validity of a reconfigured production process. In this paper, we introduce a domain-specific modelling language dedicated to model and validate constraints between production steps.With this approach, we aim to assist the operator in reconfiguring production processes. We evaluate this approach in three case studies and show that our approach can detect violated constraints in production processes.
  • Zeitschriftenartikel
    Erratum zu: Mensch-Computer-Interaktion als zentrales Gebiet der Informatik – Bestandsaufnahme, Trends und Herausforderungen
    (Informatik Spektrum: Vol. 44, No. 4, 2021) Koch, Michael; Ziegler, Jürgen; Reuter, Christian; Schlegel, Thomas; Prilla, Michael
  • Workshopbeitrag
    Evaluation of a smart public display in public transport
    (Mensch und Computer 2019 - Workshopband, 2019) Keller, Christine; Titov, Waldemar; Sawilla, Swenja; Schlegel, Thomas
    In this paper, we present the iterative evaluation of a smart public display prototype for public transport. In our research project, we developed a working prototype of a smart and mobile public display. We iteratively evaluated several facets of our prototypes, following a user centered design approach. In this paper, we describe challenges and experiences during the development and evaluation of this smart and mobile public display, as well as the results of our studies so far and we discuss our evaluation steps as best practice examples.
  • Konferenzbeitrag
    An Execution System for Self-healing Workflows in Cyber-physical Systems
    (Software Engineering 2017, 2017) Seiger, Ronny; Huber, Steffen; Schlegel, Thomas
    Within the Internet of Things software controlled sensors, actuators and smart objects enable a close coupling of the cyber and physical worlds. Introducing workflows into these cyber-physical sys- tems (CPS) promises advantages regarding automation, resource utilization and flexibility of control systems. In this work, we present PROtEUS – an integrated system for process execution in CPS. PROtEUS integrates components for event processing, data routing, dynamic service invocation and human interaction. It is the basis for executing self-healing and model-based workflows that assure cyber-physical consistency by applying the MAPE-K feedback loop.
  • Konferenzbeitrag
    Integration heterogen strukturierter Services durch modellbasierte Interaktion
    (Interaktive Kulturen : Workshop-Band : Proceedings der Workshops der Mensch & Computer 2010 - 10. Fachübergreifende Konferenz für Interaktive und Kooperative Medien, DeLFI 2010 - die 8. E-Learning Fachtagung Informatik der Gesellschaft für Informatik e.V. und der Entertainment Interfaces 2010, 2010) Schlegel, Thomas; Heim, Philipp
    Komplexe Services setzen sich meist aus mehreren, weniger komplexen Teil-Services mit unterschiedlichem Strukturierungsgrad zusammen – vom voll automatisierten BPEL-Prozess bis hin zu kreativen und informellen Aktivitäten. Um ein möglichst fehlerfreies Zusammenspiel zwischen diesen unterschiedlich stark strukturierten Teil-Services zu erreichen, stellen wir ein Modell vor, das Services und deren Teil-Services entsprechend ihres Strukturierungsgrads klassifiziert und beschreiben, auf welche Weise durch modell- und interaktionsbasierte Ansätze die Kommunikation zwischen den Teil-Services verbessert werden kann
  • Konferenzbeitrag
    Interaktion und Visualisierung im Daten-Web
    (INFORMATIK 2011 – Informatik schafft Communities, 2011) Heim, Philipp; Lohmann, Steffen; Schlegel, Thomas; Ziegler, Jürgen
    Das World Wide Web ist nicht nur eine gigantische Sammlung von verlinkten Dokumenten, es wird auch mehr und mehr zur globalen Datenbank. So- wohl Nutzer-generierte Metadaten als auch professionell aufbereitete Datenbestände verschiedenster Anbieter finden sich zunehmend im Web und bergen ein enormes Nutzungspotenzial. Dieses Potenzial lässt sich jedoch nur entfalten, wenn die Erschließung der Daten durch anwenderorientierte Zugriffsformen unterstützt wird. Vor diesem Hintergrund behandelt der Workshop Fragestellungen der Interaktion und Visualisierung im „Daten-Web“. Schwerpunkt des Workshops ist die Frage, wie die zunehmende Menge an strukturierten und semantischen Daten im Web für Anwender visuell und interaktiv besser nutzbar gemacht werden kann.
  • Konferenzbeitrag
    Interaktion und Visualisierung im Daten-Web
    (INFORMATIK 2012, 2012) Heim, Philipp; Lohmann, Steffen; Schlegel, Thomas; Ziegler, Jürgen