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Secure Federated Matrix Factorization
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DOI：10.1109/MIS.2020.3014880.png)
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摘要
En 中文
To protect user privacy and meet law regulations, federated (machine) learning is obtaining vast interests in recent years. The key principle of federated learning is training a machine learning model without needing to know each user's personal raw private data. In this article, we propose a secure matrix factorization framework under the federated learning setting, called FedMF. First, we design a user-level distributed matrix factorization framework where the model can be learned when each user only uploads the gradient information (instead of the raw preference data) to the server. While gradient information seems secure, we prove that it could still leak users' raw data. To this end, we enhance the distributed matrix factorization framework with homomorphic encryption. We implement the prototype of FedMF and test it with a real movie rating dataset. Results verify the feasibility of FedMF. We also discuss the challenges for applying FedMF in practice for future research.
Keyword:
Servers
Encryption
Privacy
Data models
Mathematical model
Machine learning
IEEE Intelligent system
Security and Privacy Protection
Distributed system
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6.1
论文数:
1.6K
被引数:
4.5K
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