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Uncertainty-Calibrated Test-Time Model Adaptation without Forgetting
March 19, 2024, 4:42 a.m. | Mingkui Tan, Guohao Chen, Jiaxiang Wu, Yifan Zhang, Yaofo Chen, Peilin Zhao, Shuaicheng Niu
cs.LG updates on arXiv.org arxiv.org
Abstract: Test-time adaptation (TTA) seeks to tackle potential distribution shifts between training and test data by adapting a given model w.r.t. any test sample. Although recent TTA has shown promising performance, we still face two key challenges: 1) prior methods perform backpropagation for each test sample, resulting in unbearable optimization costs to many applications; 2) while existing TTA can significantly improve the test performance on out-of-distribution data, they often suffer from severe performance degradation on in-distribution …
abstract arxiv backpropagation challenges cs.lg data distribution face key model adaptation optimization performance prior sample test training type uncertainty
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