Guo Hengquan; Zhu Qi; Liu Xin# , Rectified Pessimistic-Optimistic Learning for Stochastic Continuum-armed Bandit with Constraints , L4DC , 2023 , Shao, Ziyu; , Wang, Shangshang;Bian, Simeng;Liu, Xin;Shao, Ziyu# , Neural Constrained Combinatorial Bandits , IEEE INFOCOM 2023 , May 2023 , Liu Xin , Hengquan Guo, Xin Liu, Honghao Wei, and Lei Ying# , Online Convex Optimization with Hard Constraints: Towards the Best of Two Worlds and Beyond. , NeurIPS , 2022 , Liu, Xin; , Liu, Xin;Ying, Lei# , Universal Scaling of Distributed Queues Under Load Balancing in the Super-Halfin-Whitt Regime , IEEE-ACM TRANSACTIONS ON NETWORKING , 01 Feb 2022 , Liu, Xin;Gong, Kang;Ying, Lei# , Large-System Insensitivity of Zero-Waiting Load Balancing Algorithms , SIGMETRICS/PERFORMANCE 2022 - ABSTRACT PROCEEDINGS OF THE 2022 ACM SIGMETRICS/IFIP PERFORMANCE JOINT INTERNATIONAL CONFERENCE ON MEASUREMENT AND MODELING OF COMPUTER SYSTEMS , 06 Jun 2022 , 101-102 Wei, Honghao* , Wei, Honghao; , Wei, Honghao;Liu, Xin;Ying, Lei# , Triple-Q: A Model-Free Algorithm for Constrained Reinforcement Learning with Sublinear Regret and Zero Constraint Violation , INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND STATISTICS, VOL 151 , 2022 , Wei, Honghao* , Wei, Honghao;Liu, Xin;Ying, Lei# , A Provably-Efficient Model-Free Algorithm for Infinite-Horizon Average-Reward Constrained Markov Decision Processes , PROCEEDINGS OF THE 36TH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE, AAAI 2022 , 30 Jun 2022 , 36:3868-3876 Liu Xin* , Xin Liu, Bin Li, Pengyi Shi, and Lei Ying# , An Efficient Pessimistic-Optimistic Algorithm for Stochastic Linear Bandits with General Constraints. , NeurIPS , 2021 , Xin Liu, Kang Gong, and Lei Ying#, Steady-State Analysis of Load Balancing with Coxian-2 Distribution Service Times. , Naval Research Logistics , 2021 , Xin Liu and Lei Ying# , Steady-State Analysis of Load Balancing Algorithms in the Sub-Halfin-Whitt Regime. , Journal of Applied Probability , 2020 , Xin Liu, Weichang Wang, and Lei Ying# , Spatial-Temporal Routing for Supporting End-to-End Hard Deadlines in Multi-Hop Networks. , Performance Evaluation , 2019 , Anton Braverman, Jim Dai, Xin Liu, and Lei Ying # , Empty-Car Routing in Ridesharing Systems. , Operations Research , 2019 , Xin Liu and Lei Ying# , On Achieving Zero Delay with Power-of-d-choices Load Balancing. , INFOCOM , 2018 ,