4 papers
On Response-Adaptive Targeting Strategies for Multi-Treatment Experiments
Redouane Yagouti, Rémy Degenne, Emilie Kaufmann
Response-adaptive randomization (RAR) in clinical trials aims to improve ethical and statistical efficiency by dynamically allocating patients to treatments based on observed outco…
Best-Arm Identification in Unimodal Bandits
Riccardo Poiani, Marc Jourdan, Emilie Kaufmann +1
We study the fixed-confidence best-arm identification problem in unimodal bandits, in which the means of the arms increase with the index of the arm up to their maximum, then decre…
Optimal Multi-Fidelity Best-Arm Identification
Riccardo Poiani, Rémy Degenne, Emilie Kaufmann +2
In bandit best-arm identification, an algorithm is tasked with finding the arm with highest mean reward with a specified accuracy as fast as possible. We study multi-fidelity best-…
Finding good policies in average-reward Markov Decision Processes without prior knowledge
Adrienne Tuynman, Rémy Degenne, Emilie Kaufmann
We revisit the identification of an -optimal policy in average-reward Markov Decision Processes (MDP). In such MDPs, two measures of complexity have appeared in the li…