公开(公告)号：US09165033B1

公开(公告)日：2015-10-20

申请号：US14154024

申请日：2014-01-13

Applicant: Google Inc.

Inventor： Paul A. Tucker ,  Amit Singhal ,  Eric Jackson

IPC: G06F17/30

CPC classification number: G06F17/30448 ,  G06F17/30457 ,  G06F17/30554

Abstract: Methods and systems for efficient query rewriting and the like are described here. One such described method comprises: offline mapping frequently-seen search queries to rewritten queries that may be better for searching; offline caching the mapping in a cache memory; and upon receiving a search query from a user similar to one of the mapped search queries, obtaining a corresponding rewritten query from the mapping in the cache memory based on predetermined conditions, and issuing a search of the rewritten query to the backend data system in order to avoid having to issue a search query to the backend data system twice while the user is online.

Abstract translation: 这里描述了用于高效查询重写的方法和系统等。 一种这样描述的方法包括：将经常看到的搜索查询离线映射到可能更好地用于搜索的重写查询; 离线缓存高速缓存中的映射; 并且在接收到来自类似于所映射的搜索查询之一的用户的搜索查询时，基于预定条件从高速缓冲存储器中的映射获得相应的重写查询，并按顺序向后端数据系统发出重写查询的搜索 以避免在用户在线时必须向后端数据系统发出两次搜索查询。