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Current Approaches to Search Result Diversification

By Enrico Minack, Gianluca Demartini and Wolfgang Nejdl


Abstract With the growth of the Web and the variety of search engine users, Web search e ectiveness and user satisfaction can be improved by diversi cation. This paper surveys recent approaches to search result diversi cation in both full-text and structured content search. We identify commonalities in the proposed methods describing an overall framework for result diversi cation. We discuss di erent diversity dimensions and measures as well as possible ways of considering the relevance / diversity trade-o. We also summarise existing e orts evaluating diversity in search. Moreover, for each of these steps, we point out aspects which are missing in current approaches as possible directions for future work.

Year: 2009
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