A Novel Combined Term Suggestion Service for Domain-Specific Digital Libraries

  • Daniel Hienert
  • Philipp Schaer
  • Johann Schaible
  • Philipp Mayr
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6966)

Abstract

Interactive query expansion can assist users during their query formulation process. We conducted a user study with over 4,000 unique visitors and four different design approaches for a search term suggestion service. As a basis for our evaluation we have implemented services which use three different vocabularies: (1) user search terms, (2) terms from a terminology service and (3) thesaurus terms. Additionally, we have created a new combined service which utilizes thesaurus term and terms from a domain-specific search term recommender. Our results show that the thesaurus-based method clearly is used more often compared to the other single-method implementations. We interpret this as a strong indicator that term suggestion mechanisms should be domain-specific to be close to the user terminology. Our novel combined approach which interconnects a thesaurus service with additional statistical relations outperformed all other implementations. All our observations show that domain-specific vocabulary can support the user in finding alternative concepts and formulating queries.

Keywords

Evaluation Term Suggestion Query Suggestion Thesaurus Digital Libraries Interactive Query Expansion 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Daniel Hienert
    • 1
  • Philipp Schaer
    • 1
  • Johann Schaible
    • 1
  • Philipp Mayr
    • 1
  1. 1.GESIS - Leibniz Institute for the Social SciencesBonnGermany

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