- 专利标题: System and methods for finding hidden topics of documents and preference ranking documents
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申请号: US13078984申请日: 2011-04-03
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公开(公告)号: US08521662B2公开(公告)日: 2013-08-27
- 发明人: Xi Chen , Yanjun Qi , Bing Bai
- 申请人: Xi Chen , Yanjun Qi , Bing Bai
- 申请人地址: US NJ Princeton
- 专利权人: NEC Laboratories America, Inc.
- 当前专利权人: NEC Laboratories America, Inc.
- 当前专利权人地址: US NJ Princeton
- 代理商 Joseph Kolodka
- 主分类号: G06F15/18
- IPC分类号: G06F15/18
摘要:
Systems and methods are disclosed to perform preference learning on a set of documents includes receiving raw input features from the set of documents stored on a data storage device; generating polynomial combinations from the raw input features; generating one or more parameters; applying the parameters to one or more classifiers to generate outputs; determining a loss function and parameter gradients and updating parameters determining one or more sparse regularizing terms and updating the parameters; and expressing that one document is preferred over another in a search query and retrieving one or more documents responsive to the search query.
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