Building concept network-based user profile for personalized web search

Han Joon Kim, Sungjick Lee*, Byungjeong Lee, Sooyong Kang

*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

This paper presents a novel way of building the user profile of concept network for personalized search. The user profile is defined as a concept network, in which each concept is approximately represented with the formal concept analysis (FCA) theory. We assume that a concept, called 'session interest concept', subsume a user's query intention during a query session and it can reflect the user's preference. Whenever a user issues his/her query, a session interest concept is generated. Then, new concepts are merged into the current concept network (i.e., a user profile) in which recent user preferences are accumulated. According to FCA, a session interest concept is defined as a pair of extent and intent where the extent covers a set of documents selected by the user among the search results and the intent covers a set of keyword features extracted from the selected documents. And, in order to make a concept network grow, we need to calculate the similarity between a new concept and existing concepts, and to this end, we use a reference concept hierarchy called Open Directory Project. The user profile of concept network is eventually used to expand a user's initial query. The empirical results show that our approach improves the accuracy of search results in terms of personal preference.

Original languageEnglish
Title of host publicationProceedings - 9th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2010
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages567-572
Number of pages6
ISBN (Print)9780769541471
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event9th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2010 - Yamagata, Japan
Duration: 18 Aug 201020 Aug 2010

Other

Other9th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2010
CountryJapan
CityYamagata
Period18/08/1020/08/10

Keywords

  • Concept network
  • Information retrieval
  • Keyword extraction
  • Personalized search
  • Query expansion
  • User profile

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