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News/A Complexity Measure for Active Learning in Multi-group Mean Estimation
arxiv
PublishedJune 15, 2026 at 4:00 AM

A Complexity Measure for Active Learning in Multi-group Mean Estimation

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arXiv:2606.14690v1 Announce Type: new Abstract: We study a \emph{max-risk} objective for active learning in a multi-group mean estimation $d$-armed bandits: a learner adaptively allocates a budget of $T$ samples across $d$ groups to minimize the worst-case uncertainty index $\max_{k\in[d]}\sigma_k^2

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