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Collective Decision-Making as a Contextual Multi-armed Bandit Problem

par Abels, Axel ;Lenaerts, Tom ;Trianni, Vito ;Nowe, Ann
Référence International Conference on Computational Collective Intelligence(12: 2020: Da Nang, Vietnam), Computational Collective Intelligence, LNAI 12496, page (113-124)
Publication Publié, 2020-11-23

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Résumé :

Collective decision-making (CDM) processes – wherein the knowledge of a group of individuals with a common goal must be combined to make optimal decisions – can be formalized within the framework of the deciding with expert advice setting. Traditional approaches to tackle this problem focus on finding appropriate weights for the individuals in the group. In contrast, we propose here meta-CMAB, a meta approach that learns a mapping from expert advice to expected outcomes. In summary, our work reveals that, when trying to make the best choice in a problem with multiple alternatives, meta-CMAB assures that the collective knowledge of experts leads to the best outcome without the need for accurate confidence estimates.