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. 20, 2012
Filed:
Aug. 19, 2008
David R. Bailey, Palo Alto, CA (US);
Alexis J. Battle, Redwood City, CA (US);
Benedict A. Gomes, Mountain View, CA (US);
P. Pandurang Nayak, Palo Alto, CA (US);
David R. Bailey, Palo Alto, CA (US);
Alexis J. Battle, Redwood City, CA (US);
Benedict A. Gomes, Mountain View, CA (US);
P. Pandurang Nayak, Palo Alto, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
An information retrieval system includes a query revision architecture that integrates multiple different query revisers, each implementing one or more query revision strategies. A revision server receives a user's query, and interfaces with the various query revisers, each of which generates one or more potential revised queries. The revision server evaluates the potential revised queries, and selects one or more of them to provide to the user. A session-based reviser suggests one or more revised queries, given a first query, by calculating an expected utility for the revised query. The expected utility is calculated as the product of a frequency of occurrence of the query pair and an increase in quality of the revised query over the first query.