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Optimal No-Regret Learning for Repeated Prophet Inequality
We study repeated prophet inequalities under prefix feedback. In each of $T$ rounds, a learner encounters fresh values drawn independently from $n$ boxes with unknown $[0,1]$-supported distributions in a fixed order and must irrevocably accept one, observing only the prefix up to its stopping box. Regret is measured against the optimal stopping policy that knows the distributions. We give an efficient algorithm achieving $\widetilde O(\sqrt{T})$ expected regret, matching the lower bound up to logarithmic factors. Our algorithm explores directly through near-optimal policies, combining empirica
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- arXiv · AI, language, vision and robotics · 2026-09-20T00:50:02.000Z
First collected: 2026-09-23T10:01:48.231Z. This is not the publication date.