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- W4386071633 abstract "Despite the remarkable performance that modern deep neural networks have achieved on independent and identically distributed (I.I.D.) data, they can crash under distribution shifts. Most current evaluation methods for do-main generalization (DG) adopt the leave-one-out strategy as a compromise on the limited number of domains. We propose a large-scale benchmark with extensive labeled domains named <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$NICO^{++}$</tex> along with more rational evaluation methods for comprehensively evaluating DC algorithms. To evaluate DG datasets, we propose two metrics to quantify covariate shift and concept shift, respectively. Two novel generalization bounds from the perspective of data construction are proposed to prove that limited concept shift and significant covariate shift favor the evaluation capability for generalization. Through extensive experiments, <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$NlCO^{++}$</tex> shows its superior evaluation capability compared with current DG datasets and its contribution in alleviating unfairness caused by the leak of oracle knowledge in model selection. The data and code for the benchmark based on <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$NICO^{++}$</tex> are available at https://github.com/xxgege/NICO-plus." @default.
- W4386071633 created "2023-08-23" @default.
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- W4386071633 date "2023-06-01" @default.
- W4386071633 modified "2023-09-27" @default.
- W4386071633 title "NICO++: Towards Better Benchmarking for Domain Generalization" @default.
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- W4386071633 doi "https://doi.org/10.1109/cvpr52729.2023.01539" @default.
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