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:
Jul. 19, 2011
Filed:
Aug. 23, 2007
Jun Wu, Saratoga, CA (US);
Tang Xi Liu, Beijing, CN;
Feng Hong, Foster City, CA (US);
Yonggang Wang, Beijing, CN;
BO Yang, Beijing, CN;
Lei Zhang, Beijing, CN;
Jun Wu, Saratoga, CA (US);
Tang Xi Liu, Beijing, CN;
Feng Hong, Foster City, CA (US);
Yonggang Wang, Beijing, CN;
Bo Yang, Beijing, CN;
Lei Zhang, Beijing, CN;
Google Inc., Mountain View, CA (US);
Abstract
Methods, systems, and apparatus, including computer program products, to identify topic words in a document corpus that includes topic documents related to a topic are disclosed. A reference topic word divergence value based on the document corpus and the topic document corpus is determined. A candidate topic word divergence value for a candidate topic word is determined based on the document corpus and the topic document corpus. The candidate topic word is determined to be a topic word if the candidate topic word divergence value is greater than the reference topic word divergence value.