most citedExploitation Over Exploration: Unmasking the Bias in Linear Bandit Recommender Offline Evaluation

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cs.IR2026

The Bandit's Blind Spot: The Critical Role of User State Representation in Recommender Systems

Pedro R. Pires, Gregorio F. Azevedo, Rafael T. Sereicikas +2

With the increasing availability of online information, recommender systems have become an important tool for many web-based systems. Due to the continuous aspect of recommendation…