| 标题 |
[高分] Stable Subsampling of Big Data under Covariate Shift
协变量移位下大数据的稳定二次采样
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| 其它 |
Abstract The presence of data shift between training and test datasets, coupled with model misspecification, can lead to instability in regression predictions across diverse datasets. In this talk, we present a novel subsampling algorithm for stable prediction, which employs uniform design and confounder balancing methods. Theoretic analyses show that the uniform measure minimizes the maximum integral mean square error (MIMSE) and the global stability loss assesses the independence among variables in each candidate MIMSE-optimal subsampled sets. Numerical experiments conducted on synthetic and real-world datasets demonstrate the superiority of our proposed method over baseline approaches under model misspecification and covariate shift. |
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(2025-6-4)
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