CoFED: Cross-silo Heterogeneous Federated Multi-task Learning via Co-training

• URL: http://arxiv.org/abs/2202.08603v1
• Date: Thu, 17 Feb 2022 11:34:20 GMT
• Title: CoFED: Cross-silo Heterogeneous Federated Multi-task Learning via Co-training
• Authors: Xingjian Cao, Zonghang Li, Hongfang Yu, Gang Sun
• Abstract summary: Federated Learning (FL) is a machine learning technique that enables participants to train high-quality models collaboratively without exchanging their private data. We propose a communication-efficient FL scheme, CoFED, based on pseudo-labeling unlabeled data like co-training. Experimental results show that CoFED achieves better performance with a lower communication cost.
• Score: 11.198612582299813
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Federated Learning (FL) is a machine learning technique that enables participants to train high-quality models collaboratively without exchanging their private data. Participants in cross-silo FL settings are independent organizations with different task needs, and they are concerned not only with data privacy, but also with training independently their unique models due to intellectual property. Most existing FL schemes are incapability for the above scenarios. In this paper, we propose a communication-efficient FL scheme, CoFED, based on pseudo-labeling unlabeled data like co-training. To the best of our knowledge, it is the first FL scheme compatible with heterogeneous tasks, heterogeneous models, and heterogeneous training algorithms simultaneously. Experimental results show that CoFED achieves better performance with a lower communication cost. Especially for the non-IID settings and heterogeneous models, the proposed method improves the performance by 35%.

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