Facilitating exploratory search by model-based navigational cues

Wai Tat Fu, Thomas G. Kannampallil, Ruogu Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present an extension of a computational cognitive model of social tagging and exploratory search called the semantic imitation model. The model assumes a probabilistic representation of semantics for both internal and external knowledge, and utilizes social tags as navigational cues during exploratory search. We used the model to generate a measure of information scent that controls exploratory search behavior, and simulated the effects of multiple presentations of navigational cues on both simple information retrieval and exploratory search performance based on a previous model called SNIF-ACT. We found that search performance can be significantly improved by these model-based presentations of navigational cues for both experts and novices. The result suggested that exploratory search performance depends critically on the match between internal knowledge (domain expertise) and external knowledge structures (folksonomies). Results have significant implications on how social information systems should be designed to facilitate knowledge exchange among users with different background knowledge.

Original languageEnglish (US)
Title of host publicationIUI 2010 - Proceedings of the 14th ACM International Conference on Intelligent User Interfaces
Pages199-208
Number of pages10
DOIs
StatePublished - 2010
Externally publishedYes
Event14th ACM International Conference on Intelligent User Interfaces, IUI 2010 - Hong Kong, China
Duration: Feb 7 2010Feb 10 2010

Publication series

NameInternational Conference on Intelligent User Interfaces, Proceedings IUI

Other

Other14th ACM International Conference on Intelligent User Interfaces, IUI 2010
Country/TerritoryChina
CityHong Kong
Period2/7/102/10/10

Keywords

  • Exploratory learning
  • Knowledge exchange
  • Semantic imitation
  • Snif-act
  • Social tagging

ASJC Scopus subject areas

  • Software
  • Human-Computer Interaction

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