发明授权
- 专利标题: Index optimization for ranking using a linear model
- 专利标题(中): 使用线性模型进行排序的索引优化
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申请号: US12690100申请日: 2010-01-19
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公开(公告)号: US08171031B2公开(公告)日: 2012-05-01
- 发明人: Vladimir Tankovich , Dmitriy Meyerzon , Mihai Petriuc
- 申请人: Vladimir Tankovich , Dmitriy Meyerzon , Mihai Petriuc
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 代理机构: Hope Baldauff Hartman, LLC
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
Technologies are described herein for providing a more efficient approach to ranking search results. An illustrative technology reduces an amount of ranking data analyzed at query time. In the technology, a term is selected, at index time, from a master index. The term corresponds to a number of documents greater than a threshold. A set of documents that includes the term is selected based on the master index. A rank is determined for each document in the set of documents that contains the term. Each document in the set of documents that contains the term is assigned to a top document list or a bottom document list based on the rank. Predefined values of at least part of the rank are stored in the top document list for documents in the top document list and are not stored in the bottom document list for documents in the bottom document list.
公开/授权文献
- US20100121838A1 INDEX OPTIMIZATION FOR RANKING USING A LINEAR MODEL 公开/授权日:2010-05-13
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