[1]CHEN Tao,XIE Zaipeng,QU Zhihao.Federated semi-supervised learning model based on dynamic threshold enhanced prototype network[J].CAAI Transactions on Intelligent Systems,2024,19(3):534-545.[doi:10.11992/tis.202311015]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
19
Number of periods:
2024 3
Page number:
534-545
Column:
学术论文—机器学习
Public date:
2024-05-05
- Title:
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Federated semi-supervised learning model based on dynamic threshold enhanced prototype network
- Author(s):
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CHEN Tao; XIE Zaipeng; QU Zhihao
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College of Computer and Information, Hohai University, Nanjing 211100, China
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- Keywords:
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federated learning; semi-supervised learning; knowledge sharing; prototypical network; pseudo label; dynamic threshold; unlabeled data; heterogeneous data
- CLC:
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TP181
- DOI:
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10.11992/tis.202311015
- Abstract:
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Currently, federated semi-supervised learning (FSSL) faces the challenge of making effective use of a large amount of unlabeled data during training. Although knowledge sharing between clients through a lightweight prototyping network can alleviate pseudo-label quality issues, there are still bottlenecks. In this paper, we propose a federated semi-supervised learning model based on dynamic threshold enhanced prototype network. By introducing Curriculum Pseudo labeling, the core is to dynamically adjust the threshold of the learning state of different classes of samples, so that the model can learn high-quality samples and significantly improve the prediction performance of the model. Experimental results show that our proposal has achieved excellent test performance on multiple datasets. On the CIFAR-10 dataset, our proposal improves the test accuracy by at least 3% compared with similar algorithms. In addition, there is a 1%~7% lead on SVHN and STL-10 datasets. It is worth noting that our proposal performs well in handling heterogeneous and homogeneous data, and has good adaptability to different proportions of labeled and unlabeled data. Our proposal can improve the test accuracy. What’s more, it does not add additional communication overhead and computational cost. These results suggest that our proposal has great potential in the field of federated semi-supervised learning, and provides a high-performance and high-efficiency solution for practical applications.