US Patent 7840547 Methods and systems for efficient query rewriting
Patent 7840547 was granted and assigned to Google on November, 2010 by the United States Patent and Trademark Office.
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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.
US Patent 07840547 Methods and systems for efficient query rewriting US Patent 7840547 Methods and systems for efficient query rewriting
US Patent 07840547 Methods and systems for efficient query rewriting
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