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    • 6. 发明授权
    • Adjusting ranking of search results based on utility
    • 根据效用调整搜索结果的排名
    • US09223897B1
    • 2015-12-29
    • US13117006
    • 2011-05-26
    • Erik GrossJay Shrauner
    • Erik GrossJay Shrauner
    • G06F17/30G06F7/00G06F17/00
    • G06F17/30941G06F17/3053G06F17/30864
    • A method includes obtaining a rank position map, the rank position map specifying, for a plurality of rank positions, an expected utility rate for a document presented at particular rank positions as a search result; determining an expected utility rate, for a particular document, based on the obtained rank position map, and based on a quantity of times that the particular document was presented as a search result at particular rank positions; determining an actual utility rate for the particular document based on an actual quantity of selections of the particular document, and based on a total quantity of times that the particular document was presented as a search result; calculating a correction factor, for the particular document, based on the determined expected utility rate and the determined actual utility rate; and adjusting a score of the particular document based on the correction factor.
    • 一种方法,包括获得等级位置图,所述等级位置图针对多个等级位置指定在特定等级位置处呈现的文档的预期效用率作为搜索结果; 基于获得的排名位置图,并且基于特定文档作为特定排名位置处的搜索结果呈现的次数来确定特定文档的预期效用率; 基于特定文档的实际选择量确定特定文档的实际效用率,并且基于特定文档作为搜索结果呈现的总次数; 基于确定的预期效用率和确定的实际利用率来计算特定文档的校正因子; 以及基于所述校正因子来调整所述特定文档的得分。