One-time data-free transmission federated learning method and system in data privacy scene

By constructing an ensemble model in a data privacy scenario and optimizing the model weights using cosine similarity and generative adversarial networks, the problems of high communication overhead and data heterogeneity in federated learning are solved, thereby improving the model's performance and generalization ability on global data.

CN122154980APending Publication Date: 2026-06-05SOUTH CHINA UNIV OF TECH
0 Cites 0 Cited by

Patent Information

Application Number
CN202610144898.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-02
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing federated learning methods in data privacy scenarios suffer from problems such as high communication overhead, high computational complexity, and insufficient model generalization ability due to data heterogeneity. In particular, it is difficult to effectively integrate the unique information and important features of each local model in heterogeneous scenarios.

Method used

By constructing an ensemble model with a global perspective, using cosine similarity to evaluate local data differences, employing generative adversarial networks to generate high-quality data, and combining knowledge distillation techniques to optimize model weights, we can achieve one-time data-free federated learning in a data privacy scenario under single-round communication.

Benefits of technology

It improves the model's performance on global data, enhances communication efficiency, reduces data collection costs, strengthens the model's generalization ability, generates higher-quality data, and is suitable for real-world heterogeneous scenarios.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a one-time data-free transmission federal learning method in a data privacy scene, and the method comprises the steps: inputting each local privacy data set into a trained local model, and calculating an average value of prototypes of all types of privacy data; uploading the trained local models and the average value of the prototypes of all types of private data of each local to a server side to jointly form a local data integration model; judging the local privacy data difference through cosine similarity, and pairing two local models with the maximum local privacy data difference; adjusting the output weight of the local data integration model by adopting data generated by all paired local models to obtain a weight-adjusted integration model; and migrating knowledge into the server model by adopting a knowledge distillation technology, and obtaining a final server model by using the integrated model after weight adjustment as a teacher model. According to the method, the integrated model is constructed through the global view, and the performance of the model after knowledge distillation on global data is improved.
Need to check novelty before this filing date? Find Prior Art