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Usability Evaluation on the Visualization of Information Extraction Output

  • Journal of the Korean Society for Library and Information Science
  • 2005, 39(2), pp.287-304
  • Publisher : 한국문헌정보학회
  • Research Area : Interdisciplinary Studies > Library and Information Science

Jee Yeon Lee 1

1연세대학교

Accredited

ABSTRACT

The goal of this research is to evaluate the usability of visually browsing the automatically extracted information. A domain-independent information extraction system was used to extract information from news type texts to populate the visually browsable knowledge base. The information extraction system automatically generated Concept-Relation-Concept triples by applying various Natural Language Processing techniques to the text portion of the news articles. To visualize the information stored in the knowledge base, we used PersoanlBrain to develop a visualization portion of the user interface. PersonalBrain is a hyperbolic information visualization system, which enables the users to link information into a network of logical associations. To understand the usability of the visually browsable knowledge base, 15 test subjects were observed while they use the visual interface and also interviewed afterward. By applying a qualitative test data analysis method, a number of usability problems and further research directions were identified.

Citation status

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