Distributionally Robust Multiclass Classification and Applications in Deep Image Classifiers
Distributionally Robust Multiclass Classification and Applications in Deep Image Classifiers
复制标题
分布式鲁棒多类分类及其在深度图像分类器中的应用
DOI:
10.1109/icassp49357.2023.10095775
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
Paschalidis, Ioannis Ch.
中科院分区:
文献类型:
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作者:
Chen, Ruidi;Hao, Boran;Paschalidis, Ioannis Ch.
We develop a Distributionally Robust Optimization (DRO) formulation for Multiclass Logistic Regression (MLR), which could tolerate data contaminated by outliers. The DRO framework uses a probabilistic ambiguity set defined as a ball of distributions that are close to the empirical distribution of the training set in the sense of the Wasserstein metric. We relax the DRO formulation into a regularized learning problem whose regularizer is a norm of the coefficient matrix. We establish out-of-sample performance guarantees for the solutions to our model, offering insights on the role of the regularizer in controlling the prediction error. We apply the proposed method in rendering deep Vision Transformer (ViT)-based [1] image classifiers robust to random and adversarial attacks. Specifically, using the MNIST and CIFAR-10 datasets, we demonstrate reductions in test error rate by up to 83.5% and loss by up to 91.3% compared with baseline methods, by adopting a novel random training method.
DOI:
10.48550/arxiv.1608.00853
发表时间:
2016
期刊:
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影响因子:
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作者:
Dziugaite G
通讯作者:
Dziugaite G
DOI:
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发表时间:
2019
期刊:
Advances in Neural Information Processing Systems 32 (NIPS 2019
影响因子:
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作者:
Blanchet, Jose and
通讯作者:
Blanchet, Jose and
DOI:
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发表时间:
2019
期刊:
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作者:
和田 祐次郎;河原 大輝;濱田 邦裕
通讯作者:
濱田 邦裕