COMPASS-Hedge is presented as the first parameter-free full-information anytime algorithm that simultaneously delivers minimax-optimal adversarial regret, instance-optimal stochastic regret, and Õ(1) regret to a baseline policy.
Adaptive and self-confident on-line learning algorithms.Journal of Computer and System Sciences, 64(1):48–75, 2002
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Learning Safely Without Knowing the World:COMPASS-Hedge
COMPASS-Hedge is presented as the first parameter-free full-information anytime algorithm that simultaneously delivers minimax-optimal adversarial regret, instance-optimal stochastic regret, and Õ(1) regret to a baseline policy.