Ensemble meta net based on adaptive reweight and regularization

Wang Jiaqi
Yuan Ye
Zhu Yongtong
Li Qingdu
Liu Na
The Institute of Machine Intelligence, University of Shanghai for Science & Technology, Shanghai 200093, China

Abstract

Deep neural networks tend to overfit to biased training data when there are noisy labels or imbalanced class distributions in the training set. Using reweighting strategies with appropriate sample weighting is a common method to address this issue. However, improper reweighting schemes can introduce additional overhead and bias to the network's learning process, making it difficult to solve overfitting problems in biased distribution networks using only reweighting methods. To address this problem, this paper proposes a method that combines label smoothing regularization, class margin regularization, and reweighting, and presents an ensemble meta-learning method based on adaptive reweighting and regularization (Ensemble Meta Net, EMN) , which consists of a base network for classification and an ensemble meta-net for hyperparameter estimation. The method first obtains the sample loss through the base network, then uses three meta-learners to estimate the hyperparameters of adaptive reweighting and regularization in an integrated manner based on the loss, and finally uses the three hyperparameters to calculate the final ensemble meta-loss and update the base network, thereby improving its performance on biased distribution datasets. Experimental results demonstrate that EMN achieves higher accuracy on CIFAR and OCTMNIST datasets compared to other methods, and the effectiveness of different strategies is demonstrated through policy correlation analysis.

Foundation Support

国家自然科学基金资助项目(92048205,61773083)
上海市浦江人才计划资助项目(2019PJD035)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.09.0501
Publish at: Application Research of Computers Accepted Paper, Vol. 41, 2024 No. 6

Publish History

[2024-02-02] Accepted Paper

Cite This Article

王佳琦, 袁野, 朱永同, 等. 基于自适应重加权和正则化的集成元学习算法 [J]. 计算机应用研究, 2024, 41 (6). (2024-04-10). https://doi.org/10.19734/j.issn.1001-3695.2023.09.0501. (Wang Jiaqi, Yuan Ye, Zhu Yongtong, et al. Ensemble meta net based on adaptive reweight and regularization [J]. Application Research of Computers, 2024, 41 (6). (2024-04-10). https://doi.org/10.19734/j.issn.1001-3695.2023.09.0501. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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