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An implicit feedback approach for interactive information retrieval

White, R.W. and Jose, J.M. and Ruthven, I. (2006) An implicit feedback approach for interactive information retrieval. Information Processing and Management, 42 (1). pp. 166-190. ISSN 0306-4573

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Searchers can face problems finding the information they seek. One reason for this is that they may have difficulty devising queries to express their information needs. In this article, we describe an approach that uses unobtrusive monitoring of interaction to proactively support searchers. The approach chooses terms to better represent information needs by monitoring searcher interaction with different representations of top-ranked documents. Information needs are dynamic and can change as a searcher views information. The approach we propose gathers evidence on potential changes in these needs and uses this evidence to choose new retrieval strategies. We present an evaluation of how well our technique estimates information needs, how well it estimates changes in these needs and the appropriateness of the interface support it offers. The results are presented and the avenues for future research identified.