一种基于联邦迁移学习的训练方法

By employing homomorphic encryption and noise protection to safeguard data privacy in federated transfer learning, and optimizing computational terms, the problem of excessive computation and communication in existing technologies is solved, thus achieving an efficient training process.

CN116049843BActive Publication Date: 2026-07-17FUZHOU QIYUAN INFORMATION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU QIYUAN INFORMATION TECHNOLOGY CO LTD
Filing Date
2022-11-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing federated transfer learning framework, the use of homomorphic encryption to protect data privacy by both parties results in excessive computation and communication, slow speed, and the need to convert to scalar multiplication operations, which also leads to huge amounts of communication and computation.

Method used

Data privacy is protected by using homomorphic encryption on one side and adding noise on the other side, so that the computation of one side is performed in plaintext, and the computation terms during the training process are optimized to reduce the computation and transmission of intermediate result matrices in the homomorphic encryption state.

Benefits of technology

This significantly reduces the computational and communication load of federated transfer learning, improves training efficiency, and the benefits far outweigh the impact of establishing two more rounds of communication connections.

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Abstract

本发明公开了包括如下步骤:S1、B生成公私钥对,将公钥发给A;S2、双方初始化网络;S3、双方通过各自的网络进行映射Net(xi)→uiS4、A对ΦA乘上一个噪声S5、B解密S6得到S7、B解密[[L]]、S8、去掉噪声,S9、A使用L判断是否达到终止条件,本发明使得联邦迁移学习训练过程的计算量和通信量都有大幅下降,下降比例与维度d成正相关,使得联邦迁移学习的效率有大幅提。
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