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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


 
 

Automatic Hyperlinking

 
 
Screenshot Automatic Hyperlinking Screenshot with eye movements
  • Questions:
    • How should hyperlinks be marked in text?
    • Trade-off between distraction and link awareness
    • Increased relevance of link redundancy
    • Which occurrences of a term should be hyperlinked?
      • All occurrences – too distracting?
      • Linguistic selection criteria?
      • Which occurrences do users actually use?
    • Trade-off between distraction and accessibility of linked information
  • Results:
    • Users tend to use one of the initial occurrences of a link even if they do not read the text linearly
    • Problems caused by adjacent full form and abbreviation of same concept
      • E.g. „Gesellschaft bürgerlichen Rechts (GbR)“
      • Link intuitiveness – cognitive overhead
    • Users do fix hyperlinks they do not follow
    • Some users still complained links hard to find
    • Repetition of information in text and hyperlinks viewed as negative
    • Users were annoyed by hyperlinks containing little information
  • Study performed with the ASL Model 504 remote eye tracker
  • Screenshot of the text used (click on the picture to enlarge it)
    Screenshot Automatic Hyperlinking
  • Fixplots (click on the picture to enlarge it)
    Screenshot with eye movements 1 Screenshot with eye movements 2 Screenshot with eye movements 3
    Screenshot with eye movements 4 Screenshot with eye movements 5 Screenshot with eye movements 6
    The red lines correspond to the user's line of gaze, the red dots to the fixations: the longer the fixation, the bigger the dot. The fixations are numbered (number next to the fixation) and start with "1".