[KongchangAI]
Unverified50% confidenceFactExact time

In 2020, Bousquet and Warmuth gave an efficient algorithm for a discrete set of experts, whose regret reaches the information-theoretic lower bound, that is, when the comparator switches k times among m experts, the regret is Õ(md+k), and the computation is polynomial-time.

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50%
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Long-term
Relevance
10/15/2026
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