Relevance feedback and other query modification techniques
Information retrieval
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TREC-2 Proceedings of the second conference on Text retrieval conference
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WWW '03 Proceedings of the 12th international conference on World Wide Web
IEEE Transactions on Image Processing
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WWW '05 Special interest tracks and posters of the 14th international conference on World Wide Web
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ACM Computing Surveys (CSUR)
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NLDB '08 Proceedings of the 13th international conference on Natural Language and Information Systems: Applications of Natural Language to Information Systems
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FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
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ICHL'09 Proceedings of the Second international conference on Hybrid Learning and Education
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Searching online information resources using mobile devices is affected by displays on which only a small fraction of the set of ranked documents can be displayed. In this paper, we ask whether the search effort can be reduced, on average, by user feedback indicating a single most relevant document in each display. For small display sizes and limited user actions, we are able to construct a tree representing all possible outcomes. Examination of the tree permits us to compute an upper limit on relevance feedback performance. Three standard feedback algorithms are considered – Rocchio, Robertson/Sparck-Jones and a Bayesian algorithm. Two display strategies are considered, one based on maximizing the immediate information gain and the other on most likely documents. Our results bring out the strengths and weaknesses of the algorithms, and the need for exploratory display strategies with conservative feedback algorithms.