Abstract:Counterfactual risk minimization is a framework for offline policy optimization with logged data which consists of context, action, propensity score, and reward for each sample point. In this work, we build on this framework and propose a learning method for settings where the rewards for some samples are not observed, and so the logged data consists of a subset of samples with unknown rewards and a subset of samples with known rewards. This setting arises in many application domains, including advertising and… Show more
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