US Patent Issued to Alibaba Damo (Hangzhou) Technology on May 20 for "Item recommendation method and device for protecting user privacy and learning system" (American, Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,499, issued on May 20, was assigned to Alibaba Damo (Hangzhou) Technology Co. Ltd. (Hangzhou, China).

"Item recommendation method and device for protecting user privacy and learning system" was invented by Jingren Zhou (Bellevue, Wash.), Bolin Ding (Redmond, Wash.) and Zitao Li (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An item recommendation method, a device and a learning system for protecting user privacy are provided. The method includes: obtaining a locally collected scoring matrix, the scoring matrix being used to describe a scoring situation of multiple users on multiple items; locally training an item expression matrix a...