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. 29, 2011
Filed:
Mar. 26, 2008
Guang-ho Cha, Pusan, KR;
Chin-wan Chung, Taejon, KR;
Dragutin Petkovic, Saratoga, CA (US);
Xiaoming Zhu, San Jose, CA (US);
Guang-Ho Cha, Pusan, KR;
Chin-Wan Chung, Taejon, KR;
Dragutin Petkovic, Saratoga, CA (US);
Xiaoming Zhu, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Vectors representing objects in n-dimensional space are approximated by local polar coordinates on partitioned cells of the data space in response to a query, e.g., a query data vector entered with a request to find 'k' nearest neighbors to the query vector. A set of candidate near neighbors is generated using the approximations, with the local polar coordinates being independent of the dimensionality of the data space. Then, an answer set of near neighbors is returned in response to the query. Thus, the present invention acts as a filter to reduce the number of actual data vectors in the data set that must be considered in responding to the query.