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:
Dec. 25, 2012
Filed:
Sep. 18, 2009
Bing Bai, Plainsboro, NJ (US);
Jason Weston, New York, NY (US);
Ronan Collobert, Princeton, NJ (US);
David Grangier, Princeton, NJ (US);
Bing Bai, Plainsboro, NJ (US);
Jason Weston, New York, NY (US);
Ronan Collobert, Princeton, NJ (US);
David Grangier, Princeton, NJ (US);
NEC Laboratories America, Inc., Princeton, NJ (US);
Abstract
A system and method for determining a similarity between a document and a query includes building a weight vector for each of a plurality of documents in a corpus of documents stored in memory and building a weight vector for a query input into a document retrieval system. A weight matrix is generated which distinguishes between relevant documents and lower ranked documents by comparing document/query tuples using a gradient step approach. A similarity score is determined between weight vectors of the query and documents in a corpus by determining a product of a document weight vector, a query weight vector and the weight matrix.