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Improved Active Learning via Dependent Leverage Score Sampling
May 7, 2024, 4:44 a.m. | Atsushi Shimizu, Xiaoou Cheng, Christopher Musco, Jonathan Weare
cs.LG updates on arXiv.org arxiv.org
Abstract: We show how to obtain improved active learning methods in the agnostic (adversarial noise) setting by combining marginal leverage score sampling with non-independent sampling strategies that promote spatial coverage. In particular, we propose an easily implemented method based on the \emph{pivotal sampling algorithm}, which we test on problems motivated by learning-based methods for parametric PDEs and uncertainty quantification. In comparison to independent sampling, our method reduces the number of samples needed to reach a given …
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