Patent · US Active

Recommendation system

US11379743B2 · kind B2 · utility

2Cited by

3References

30Claims

0Family size

Assignee

SAS INSTITUTE, INC. · US

Inventors

Xuejun Liao · Cary, US
Patrick Nathan Koch · Morrisville, US
Shunping Huang · Cary, US
Yan Xu · Tangxia, CN

Key dates

Filing date	Jul 28, 2021
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Jul 28, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06Q30/0631
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computing device determines a recommendation. (A) A first parameter matrix is updated using a first direction matrix and a first step-size parameter value that is greater than one. The first parameter matrix includes a row dimension equal to a number of users of a plurality of users included in a ratings matrix and the ratings matrix includes a missing matrix value. (B) A second parameter matrix is updated using a second direction matrix and a second step-size parameter value that is greater than one. The second parameter matrix includes a column dimension equal to a number of items of a plurality of items included in the ratings matrix. (C) An objective function value is updated based on the first parameter matrix and the second parameter matrix. (D) (A) through (C) are repeated until the first parameter matrix and the second parameter matrix satisfy a convergence test.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.