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Diversity-Preserving K-Armed Bandits, Revisited
April 16, 2024, 4:45 a.m. | H\'edi Hadiji (L2S), S\'ebastien Gerchinovitz (IMT), Jean-Michel Loubes (IMT), Gilles Stoltz (CELESTE, LMO)
cs.LG updates on arXiv.org arxiv.org
Abstract: We consider the bandit-based framework for diversity-preserving recommendations introduced by Celis et al. (2019), who approached it in the case of a polytope mainly by a reduction to the setting of linear bandits. We design a UCB algorithm using the specific structure of the setting and show that it enjoys a bounded distribution-dependent regret in the natural cases when the optimal mixed actions put some probability mass on all actions (i.e., when diversity is desirable). …
abstract algorithm arxiv case cs.lg design diversity framework linear recommendations show stat.ml type
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