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:
Oct. 30, 2012
Filed:
Sep. 25, 2008
Ning-yi Xu, Beijing, CN;
Feng-hsiung Hsu, Cupertino, CA (US);
Rui Gao, Beijing, CN;
Xiong-fei Cai, Beijing, CN;
Junyan Chen, Beijing, CN;
Ning-Yi Xu, Beijing, CN;
Feng-Hsiung Hsu, Cupertino, CA (US);
Rui Gao, Beijing, CN;
Xiong-Fei Cai, Beijing, CN;
Junyan Chen, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
A method using a RankBoost-based algorithm to automatically select features for further ranking model training is provided. The method reiteratively applies a set of ranking candidates to a training data set comprising a plurality of ranking objects having a known pairwise ranking order. Each round of iteration applies a weight distribution of ranking object pairs, yields a ranking result by each ranking candidate, identifies a favored ranking candidate for the round based on the ranking results, and updates the weight distribution to be used in next iteration round by increasing weights of ranking object pairs that are poorly ranked by the favored ranking candidate. The method then infers a target feature set from the favored ranking candidates identified in the iterations.