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专利名称：Real time implicit user modeling for
personalized search
发明人：Mark Cramer,ChengXiang Zhai,Xuehua
Shen,Bin Tan
申请号：US11743076申请日：20070501公开号：US08442973B2公开日：20130514
专利附图：
摘要：A method and apparatus for utilizing user behavior to immediately modify setsof search results so that the most relevant documents are moved to the top. In one
embodiment of the invention, behavior data, which can come from virtually any activity, isused to infer the user's intent. The updated inferred implicit user model is then exploitedimmediately by re-ranking the set of matched documents to best reflect the informationneed of the user. The system updates the user model and immediately re-ranks
documents at every opportunity in order to constantly provide the most optimal results.In another embodiment, the system determines, based on the similarity of results sets, ifthe current query belongs in the same information session as one or more previousqueries. If so, the current query is expanded with additional keywords in order to improvethe targeting of the results.
申请人：Mark Cramer,ChengXiang Zhai,Xuehua Shen,Bin Tan
地址：San Francisco CA US,Champaign IL US,Urbana IL US,Champaign IL US
国籍：US,US,US,US
代理机构：Kilpatrick Townsend & Stockton LLP
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