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Diversifying Search Results with Popular Subtopics
2009
Text Retrieval Conference
This paper describes the method we use in the diversity task of web track in TREC 2009. The problem we aim to solve is the diversification of search results for ambiguous web queries. We present a model based on knowledge of the diversity of query subtopics to generate a diversified ranking for retrieved documents. We expand the original query into several related queries, assuming that query expansions expose subtopics of the original query. Moreover, each query expansion is given a weight
dblp:conf/trec/YinXQD09
fatcat:4gec7miubfcndgvcqpqtekedj4