- Tianrun Zhao, Xiaojie Mao, Yong Liang. Online Strategic Classification with Noise and Partial Feedback. Annual Conference on Neural Information Processing Systems (Spotlight, 3%), 2025. 
- Zhiyi Li, Xiaojie Mao, Yunbei Xu, Ruohan Zhan. Statistical Properties of Robust Optimization under Distribution Shifts. NeurIPS 2025 Workshop ML×OR. 
- Jian Chen, Zhehao Li, Xiaojie Mao. Learning under Selective Labels with Data from Heterogeneous Decision-makers: An Instrumental Variable Approach. International Conference on Machine Learning, 2025. 
- Yichun Hu, Nathan Kallus, Xiaojie Mao, Yanchen Wu. Contextual Linear Optimization with Bandit Feedback. The 38th Annual Conference on Neural Information Processing Systems, 2024.  
- Guido Imbens, Nathan Kallus, Xiaojie Mao, Yuhao Wang. Long-term causal inference under persistent confounding via data combination. Accepted by Journal of the Royal Statistical Society Series B.  
- Nathan Kallus, Xiaojie Mao. On the Role of Surrogates in the Efficient Estimation of Treatment Effects with Limited Outcome Data. Accepted by Journal of the Royal Statistical Society Series B. 
- Nathan Kallus, Xiaojie Mao, Masatoshi Uehara. Localized Debiased Machine Learning: Efficient Estimation of Quantile Treatment Effects and Beyond. Forthcoming in the Journal of Machine Learning Research, 2024.  
- Andrew Bennett, Nathan Kallus, Xiaojie Mao, Whitney Newey, Vasilis Syrgkanis, Masatoshi Uehara. Inference on Strongly Identified Functionals of Weakly Identified Functions. Conference on Learning Theory, 2023. 
- Andrew Bennett, Nathan Kallus, Xiaojie Mao, Whitney Newey, Vasilis Syrgkanis, Masatoshi Uehara. Minimax Instrumental Variable Regression and L2 Convergence Guarantees without Identification or Closedness. Conference on Learning Theory, 2023. 
- Nathan Kallus, Xiaojie Mao, Kaiwen Wang, Zhengyuan Zhou (2022). Doubly Robust Distributionally Robust Off-Policy Evaluation and Learning. International Conference on Machine Learning, 2022. 
 
 
- Nathan Kallus, Xiaojie Mao. Stochastic Optimization Forests. Management Science, 2022. 
- Yichun Hu, Nathan Kallus, Xiaojie Mao. Fast Rates for Contextual Linear Optimization. Management Science, 2022. 
- Yichun Hu, Nathan Kallus, Xiaojie Mao. Smooth Contextual Bandits: Bridging the Parametric and Non-differentiable Regret Regimes. Operations Research, 2022. Finalist for Applied Probability Society 2020 Best Student Paper Competition. 
- Nathan Kallus, Xiaojie Mao, Angela Zhou. Assessing Algorithmic Fairness with Unobserved Protected Class Using Data Combination. Management Science Special Issue on Data-Driven Prescriptive Analytics, 2021.  Preliminary Version Accepted in FAT* 2020 and NeurIPS 2019 Workshop on Fair ML for Health. 
- Nathan Kallus, Xiaojie Mao, Angela Zhou. Interval Estimation of Individual-Level Causal Effects Under Unobserved Confounding. The 22nd International Conference on Artificial Intelligence and Statistics, 2019. 
- Jiahao Chen, Nathan Kallus, Xiaojie Mao, Geoffry Svacha, Madeleine Udell. Fairness Under Unawareness: Assessing Disparity When Protected Class Is Unobserved. ACM FAT* 2019: Conference on Fairness, Accountability, and Transparency in Machine Learning. 
- Nathan Kallus, Xiaojie Mao, Madeleine Udell. Causal Inference with Noisy and Missing Covariates via Matrix Factorization. The 32nd Annual Conference on Neural Information Processing Systems, 2018.