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. 16, 2019
Filed:
Jun. 09, 2017
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Krishnaram Kenthapadi, Sunnyvale, CA (US);
Stuart MacDonald Ambler, Longmont, CO (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
In an example embodiment, an anonymized set of confidential data values is obtained for a plurality of combinations of cohorts having a first attribute type and a second attribute type. A matrix of the confidential data values having the first attribute type as a first axis and the second attribute type as the second axis is constructed. A set of candidate low rank approximations of the matrix is calculated using an objective function evaluated using a set of candidate data transformation functions, the objective function having one or more parameters and an error function. One or more parameters that minimize the error function of the objective function are minimized to select one of the candidate low rank approximations of the matrix. Then one or more cells that are missing data, of the selected one of the candidate low rank approximations of the matrix, are inferred.