Selecting effective expansion terms for diversity

  title={Selecting effective expansion terms for diversity},
  author={Saul Vargas and Rodrygo L. T. Santos and Craig MacDonald and Iadh Ounis},
Query expansion has been successfully applied in Information Retrieval, mostly for adhoc search tasks. On the other hand, query expansion can also fail, particularly in light of query ambiguity. For an ambiguous query, an effective strategy is to diversify the search results, in the hope of retrieving at least one relevant result for each of the possible information needs underlying the query. In this paper, we propose to tailor query expansion to diversify the search results in order to tackle… CONTINUE READING