Selected Public Appearances
Current Work (Selection)
  VOICE Award 2006
  Project HALO 2
  Mobile Multimodal Systems
Recent Work (Selection)
  VOICE Award 2005
  Improved Internet Search
  Document Manager
  Multitasking with Xybernaut
  Automatic Hyperlinking
  Speech-Based Home Cooking Assistant
  Sonicson Music Retrieval System
  Tips and Tricks for Mobile Eye Tracking
Selected Videos
Services and Contact

German Competence Center for Speech Technology The other parts of the German Competence Center for Speech Technology:
Virtual Information Center LT-World
German Demonstration Center for LT-Systems

The COLLATE Project

Last modified: 2006-11-08

The DFKI Evaluation Center for Language Technology


Recent Work


Multitasking with Xybernaut

Xybernaut with cross hairs
  • Nature of the system:
    • Small handheld PC with a basic indoor navigation system based on infrared sensors
      • REAL software developed by the Department of Computer Science, Saarbrücken University
    • Directions via maps visible to the user from the system screen
    • The system is configured for a planned route in the Computer Science department at Saarbrücken University
  • Questions:
    • How can a user manage multitasking with a mobile system?
    • How do users combine the following tasks:
      • Walking
      • Scrolling
      • View room
  • Study performed with the ASL Model 501 mobile eye tracker
    • See the videos recorded during the study
  • Results:
    • Event tables (generated from the videos recorded during the session)
      • Main differences in subjects:
        • Event-driven
          Event table of an event-driven person
          • Interested in starting to perform the task
          • Once there was an event, the user adjusted their plan to solve the task
        • Plan-driven
          Event table of a plan-driven person
          • Developing a strategy for each task through map dragging
          • Having an understanding how they are positioned on the map relative to the environment
  • Publications on this subject: see Norlien (2002)