Incremental relevance feedback in Japanese text retrieval

Gareth Jones*, Tetsuya Sakai, Masahiro Kajiura, Kazuo Sumita


研究成果: Article査読

2 被引用数 (Scopus)


The application of relevance feedback techniques has been shown to improve retrieval performance for a number of information retrieval tasks. This paper explores incremental relevance feedback for ad hoc Japanese text retrieval; examining, separately and in combination, the utility of term reweighting and query expansion using a probabilistic retrieval model. Retrieval performance is evaluated in terms of standard precision-recall measures, and also using "number-to-view" graphs. Experimental results, on the standard BMIR-J2 Japanese language retrieval collection, show that both term reweighting and query expansion improve retrieval performance. This is reflected in improvements in both precision and recall, but also a reduction in the average number of documents which must be viewed to find a selected number of relevant items. In particular, using a simple simulation of user searching, incremental application of relevance information is shown to lead to progressively improved retrieval performance and an overall reduction in the number of documents that a user must view to find relevant ones.

ジャーナルInformation Retrieval
出版ステータスPublished - 2000 1月 1

ASJC Scopus subject areas

  • 情報システム
  • 図書館情報学


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