公开(公告)号：US20240005210A1

公开(公告)日：2024-01-04

申请号：US18252559

申请日：2021-11-06

Applicant: Lemon Inc.

Inventor： Jiankai SUN ,  Weihao GAO ,  Chong WANG ,  Hongyi ZHANG ,  Xiaobing LIU ,  Runliang LI ,  Xin YANG

IPC: G06N20/00 ,  G06F21/60

CPC classification number: G06N20/00 ,  G06F21/60

Abstract: The present disclosure relates to a data protection method, an apparatus, a medium and a device. The method includes: acquiring gradient association information respectively corresponding to reference samples of a target batch of an active party of a joint training model; according to the proportion occupied respectively by reference samples of positive examples and reference samples of negative examples in all reference samples of the target batch, determining a constraint condition of the data noise to be added; determining information of said data noise according to the gradient association information and the constraint condition corresponding to the reference samples; correcting, according to the information of said data noise, an initial gradient transmission value corresponding to each reference sample, so as to obtain target gradient transmission information; and sending the target gradient transmission information to a passive party of the joint training model.