@inproceedings{wei2026ope,title={Off-Policy Evaluation for Missingness-Aware Policies in {MDP}s with Rewards Missing Not at Random},author={Wei, Ziheng and Qu, Annie and Miao, Rui},booktitle={Proceedings of the 43rd International Conference on Machine Learning},series={Proceedings of Machine Learning Research},publisher={PMLR},year={2026},}