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cs.LG2022★ 1 cited
Modeling Attrition in Recommender Systems with Departing Bandits
Omer Ben-Porat, Lee Cohen, Liu Leqi +2
Traditionally, when recommender systems are formalized as multi-armed bandits, the policy of the recommender system influences the rewards accrued, but not the length of interactio…
cs.LG2022
Finding Safe Zones of policies Markov Decision Processes
Lee Cohen, Yishay Mansour, Michal Moshkovitz
Given a policy of a Markov Decision Process, we define a SafeZone as a subset of states, such that most of the policy's trajectories are confined to this subset. The quality of a S…