Search behaviors in different task types

Jingjing Liu, Michael J. Cole, Chang Liu, Ralf Bierig, Jacek Gwizdka, Nicholas J. Belkin, Jun Zhang, Xiangmin Zhang

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

105 Scopus citations

Abstract

Personalization of information retrieval tailors search towards individual users to meet their particular information needs by taking into account information about users and their contexts, often through implicit sources of evidence such as user behaviors. Task types have been shown to influence search behaviors including usefulness judgments. This paper reports on an investigation of user behaviors associated with different task types. Twenty-two undergraduate journalism students participated in a controlled lab experiment, each searching on four tasks which varied on four dimensions: complexity, task product, task goal and task level. Results indicate regular differences associated with different task characteristics in several search behaviors, including task completion time, decision time (the time taken to decide whether a document is useful or not), and eye fixations, etc. We suggest these behaviors can be used as implicit indicators of the user's task type.

Original languageEnglish (US)
Title of host publicationJCDL'10 - Digital Libraries - 10 Years Past, 10 Years Forward, a 2020 Vision
Pages69-78
Number of pages10
DOIs
StatePublished - 2010
Externally publishedYes
Event10th Annual Joint Conference on Digital Libraries, JCDL 2010 - Gold Coast, QLD, Australia
Duration: Jun 21 2010Jun 25 2010

Publication series

NameProceedings of the ACM International Conference on Digital Libraries

Conference

Conference10th Annual Joint Conference on Digital Libraries, JCDL 2010
Country/TerritoryAustralia
CityGold Coast, QLD
Period6/21/106/25/10

Keywords

  • Eye tracking
  • Information retrieval
  • Personalization
  • Task type
  • User behavior

ASJC Scopus subject areas

  • Software
  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

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