ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,039, issued on Sept. 8, was assigned to ZHEJIANG UNIVERSITY (Hangzhou, China).

"Decision tree-oriented vertical federated learning method" was invented by Jian Liu (Hangzhou, China), Rui Zhang (Hangzhou, China), Zhihua Tian (Hangzhou, China), Xiaoyang Hou (Hangzhou, China) and Kui Ren (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a decision tree-oriented vertical federated learning method, which mainly comprises the following steps: 1) all participants sorting local samples for each local feature, and then dividing the sorted samples into different blocks in sequence, each block being called a bucket; 2) for a group of ...