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. 21, 2020
Filed:
Sep. 10, 2019
Sas Institute Inc., Cary, NC (US);
Yingjian Wang, Apex, NC (US);
SAS Institute Inc., Cary, NC (US);
Abstract
A computing system trains a clustering model. A responsibility parameter vector includes a probability value of a cluster membership in each cluster for each respective observation vector. (A) Parameter values for a normal-Wishart distribution are computed for each cluster using a mean value, an inverse precision parameter value, each observation vector, and each respective responsibility parameter vector. (B) The responsibility parameter vector is updated using a multivariate student t-distribution function with the computed parameter values for the normal-Wishart distribution and a respective observation vector of the observation vectors as input values. (C) A convergence parameter value is computed. (D) (A) to (C) are repeated until the computed convergence parameter value indicates the responsibility parameter vector defined for each observation vector is converged. A cluster membership is determined for each observation vector using a respective, updated responsibility parameter vector.