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:
Apr. 05, 2011
Filed:
Jan. 02, 2008
Marios Hadjieleftheriou, Madison, NJ (US);
Amit Chandel, Noida, IN;
Nick Koudas, Toronto, CA;
Divesh Srivastava, Summit, NJ (US);
Marios Hadjieleftheriou, Madison, NJ (US);
Amit Chandel, Noida, IN;
Nick Koudas, Toronto, CA;
Divesh Srivastava, Summit, NJ (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
The similarity between a query set comprising query set tokens and a database set comprising database set tokens is determined by a similarity score. The database sets belong to a data collection set, which contains all database sets from which information may be retrieved. If the similarity score is greater than or equal to a user-defined threshold, the database set has information relevant to the query set. The similarity score is calculated with an inverse document frequency method (IDF) similarity measure independent of term frequency. The document frequency is based at least in part on the number of database sets in the data collection set and the number of database sets which contain at least one query set token. The length of the query set and the length of the database set are normalized.