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Search Result Diversification Based on Query Facets
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作者 胡莎 窦志成 +1 位作者 王晓捷 文继荣 《Journal of Computer Science & Technology》 SCIE EI CSCD 2015年第4期888-901,共14页
In search engines, different users may search for different information by issuing the same query. To satisfy more users with limited search results, search result diversification re-ranks the results to cover as many... In search engines, different users may search for different information by issuing the same query. To satisfy more users with limited search results, search result diversification re-ranks the results to cover as many user intents as possible. Most existing intent-aware diversification algorithms recognize user intents as subtopics, each of which is usually a word, a phrase, or a piece of description. In this paper, we leverage query facets to understand user intents in diversification, where each facet contains a group of words or phrases that explain an underlying intent of a query. We generate subtopics based on query facets and propose faceted diversification approaches. Experimental results on the public TREC 2009 dataset show that our faceted approaches outperform state-of-the-art diversification models. 展开更多
关键词 query intent query facet search result diversification
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