发明授权
- 专利标题: Multi-stage query processing system and method for use with tokenspace repository
- 专利标题(中): 多阶段查询处理系统和方法用于托管存储库
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申请号: US10917746申请日: 2004-08-13
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公开(公告)号: US08407239B2公开(公告)日: 2013-03-26
- 发明人: Jeffrey Adgate Dean , Paul G. Haahr , Olcan Sercinoglu , Amitabh K. Singhal
- 申请人: Jeffrey Adgate Dean , Paul G. Haahr , Olcan Sercinoglu , Amitabh K. Singhal
- 申请人地址: US CA Mountain View
- 专利权人: Google Inc.
- 当前专利权人: Google Inc.
- 当前专利权人地址: US CA Mountain View
- 代理机构: Morgan, Lewis & Bockius LLP
- 主分类号: G06F7/00
- IPC分类号: G06F7/00 ; G06F17/30
摘要:
A multi-stage query processing system and method enables multi-stage query scoring, including “snippet” generation, through incremental document reconstruction facilitated by a multi-tiered mapping scheme. At one or more stages of a multi-stage query processing system a set of relevancy scores are used to select a subset of documents for presentation as an ordered list to a user. The set of relevancy scores can be derived in part from one or more sets of relevancy scores determined in prior stages of the multi-stage query processing system. In some embodiments, the multi-stage query processing system is capable of executing one or more passes on a user query, and using information from each pass to expand the user query for use in a subsequent pass to improve the relevancy of documents in the ordered list.