Navigation in degree of interest trees

  • Authors:
  • Raluca Budiu;Peter Pirolli;Michael Fleetwood

  • Affiliations:
  • Palo Alto Research Center, Palo Alto, CA;Palo Alto Research Center, Palo Alto, CA;Rice University, Houston, TX

  • Venue:
  • Proceedings of the working conference on Advanced visual interfaces
  • Year:
  • 2006

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Abstract

We present an experiment that compares how people perform search tasks in a degree-of-interest browser and in a Windows-Explorer-like browser. Our results show that, whereas users do attend to more information in the DOI browser, they do not complete the task faster than in an Explorer-like browser. However, in both types of browser, users are faster to complete high information scent search tasks than low information scent tasks. We present an ACT-R computational model of the search task in the DOI browser. The model describes how a visual search strategy may combine with semantic aspects of processing, as captured by information scent. We also describe a way of automatically estimating information scent in an ontological hierarchy by querying a large corpus (in our case, Google's corpus).