The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2014
Filed:
Dec. 20, 2011
Pei Cao, Palo Alto, CA (US);
Nadav Eiron, San Jose, CA (US);
Soham Mazumdar, San Francisco, CA (US);
Anna L. Patterson, San Jose, CA (US);
Russell Power, New York, NY (US);
Yonatan Zunger, Mountain View, CA (US);
Pei Cao, Palo Alto, CA (US);
Nadav Eiron, San Jose, CA (US);
Soham Mazumdar, San Francisco, CA (US);
Anna L. Patterson, San Jose, CA (US);
Russell Power, New York, NY (US);
Yonatan Zunger, Mountain View, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
An information retrieval system uses phrases to index, retrieve, organize and describe documents. Phrases are extracted from the document collection. Documents are the indexed according to their included phrases, using phrase posting lists. The phrase posting lists are stored in an cluster of index servers. The phrase posting lists can be tiered into groups, and sharded into partitions. Phrases in a query are identified based on possible phrasifications. A query schedule based on the phrases is created from the phrases, and then optimized to reduce query processing and communication costs. The execution of the query schedule is managed to further reduce or eliminate query processing operations at various ones of the index servers.