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. 14, 2010
Filed:
Feb. 26, 2007
Yuan-chi Chang, New York, NY (US);
Feifei LI, Boston, MA (US);
Spyridon Papadimitriou, White Plains, NY (US);
George A. Mihaila, Yorktown Heights, NY (US);
Ioana Stanoi, San Jose, CA (US);
Jimeng Sun, Pittsburgh, PA (US);
Philip S. Yu, Chappaqua, NY (US);
Yuan-Chi Chang, New York, NY (US);
Feifei Li, Boston, MA (US);
Spyridon Papadimitriou, White Plains, NY (US);
George A. Mihaila, Yorktown Heights, NY (US);
Ioana Stanoi, San Jose, CA (US);
Jimeng Sun, Pittsburgh, PA (US);
Philip S. Yu, Chappaqua, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Disclosed is a method, information processing system, and computer readable medium for preserving privacy of nonstationary data streams. The method includes receiving at least one nonstationary data stream with time dependent data. Calculating, for a given instant of sub-space of time, A set of first-moment statistical values is calculated, for a given instant of sub-space of time, for the data. The first moment statistical values include a principal component for the sub-space of time. The data is perturbed with noise along the principal component in proportion to the first-moment of statistical values so that at least part of a set of second-moment statistical values for the data is perturbed by the noise only within a predetermined variance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile