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Research
Selected Working Papers
Sailing through the Dark: Provably Sample-Efficient Inventory Control
Hanzhang Qin, David Simchi-Levi, and Ruihao Zhu
PRINCIPRO: Data-Driven Algorithms for Joint Pricing and Inventory Control under Price Protection
Qing Feng and Ruihao Zhu
◇ Preliminary version: (Extended Abstract) Proceedings of the 19th Conference on Web and Internet Economics (WINE 2023)
Temporal Fairness in Learning and Earning: Price Protection Guarantee and Phase Transitions
Qing Feng, Ruihao Zhu, and Stefanus Jasin
◇ Preliminary version: (Extended Abstract) Proceedings of the 24th ACM Conference on Economics and Computationg (EC 2023), 8th Market Innovation Workshop (MIW 2023)
Learning to Price Supply Chain Contracts against a Learning Retailer
Xuejun Zhao, Ruihao Zhu, and William B. Haskell
Risk-Aware Linear Bandits: Theory and Applications in Smart Order Routing
Jingwei Ji, Renyuan Xu, and Ruihao Zhu
◇ Preliminary version: Proceedings of the 3rd ACM International Conference on AI in Finance (ICAIF 2022), INFORMS Workshop on Data Science 2022
Safe Data Collection for Offline and Online Policy Learning
Ruihao Zhu and Branislav Kveton
◇ In collaboration with Amazon
◇ Preliminary version: Proceedings of the 25th International Conference on Artificial Intelligence and Statistics (AISTATS 2022), MIT 2021 Conference on Digital Experimentation (CODE@MIT), INFORMS Workshop on Data Science 2022
Journal Publications
Model-Free Non-Stationary RL: Near-Optimal Regret and Applications in Multi-Agent RL and Inventory Control
Weichao Mao, Kaiqing Zhang, Ruihao Zhu, David Simchi-Levi, and Tamer Basar
Management Science (Accepted)
◇ Preliminary version: Proceedings of the 38th International Conference on Machine Learning (ICML 2021)
Calibrating Sales Forecast in a Pandemic Using Competitive Online Non-Parametric Regression
David Simchi-Levi, Rui Sun, Michelle X. Wu, and Ruihao Zhu
Management Science [Journal]
◇ In collaboration with AB InBev
◇ Preliminary version: (Oral Presentation) KDD 2021 Workshop on Machine Learning for Consumers and Markets (MLCM at KDD 2021)
◇ 2nd Place, INFORMS Innovative Applications in Analytics Award 2022
◇ Finalist, INFORMS Service Science Section Best Cluster Paper Award 2021
◇ Supply Chain Management SIG Meeting, MSOM Conference 2021
Non-Stationary Reinforcement Learning: The Blessing of (More) Optimism
Wang Chi Cheung, David Simchi-Levi, and Ruihao Zhu
Management Science 69(10):5722-5739 (2023) [Journal]
◇ Preliminary version: Proceedings of the 37th International Conference on Machine Learning (ICML 2020)
Joint Patient Selection and Scheduling under No-Shows: Theory and Application in Proton Therapy
Soroush Saghafian, Nikolaos Trichakis, Ruihao Zhu, and Helen Shih
Production and Operations Management 32(2): 547-563 (2023) [Journal]
◇ In collaboration with Massachusetts General Hospital
Meta Dynamic Pricing: Transfer Learning Across Experiments
Hamsa Bastani, David Simchi-Levi, and Ruihao Zhu
Management Science 68(3): 1865-1881 (2022) [Journal]
◇ Spotlight Track, INFORMS RM&P Conference 2019
Hedging the Drift: Learning to Optimize under Non-Stationarity
Wang Chi Cheung, David Simchi-Levi, and Ruihao Zhu
Management Science 68(3): 1696-1713 (2022) [Journal]
◇ Preliminary version: Proceedings of the 22nd International Conference on Artificial Intelligence and Statistics (AISTATS 2019).
◇ Honorable Mention, INFORMS George E. Nicholson Student Paper Competition 2019
◇ Finalist, POMS-JD.com Best Data-Driven Research Paper Competition 2019
◇ Service Operations SIG Meeting, MSOM Conference 2019
Selected Conference Publications
PRINCIPRO: Data-Driven Algorithms for Joint Pricing and Inventory Control under Price Protection
Qing Feng and Ruihao Zhu
Proceedings of the 19th Conference on Web and Internet Economics (WINE 2023)
Temporal Fairness in Learning and Earning: Price Protection Guarantee and Phase Transitions
Qing Feng, Ruihao Zhu, and Stefanus Jasin
Proceedings of the 24th ACM Conference on Economics and Computationg (EC 2023)
LINet: A Location and Intention-Aware Neural Network for Hotel Group Recommendation
Ruitao Zhu, Detao Lv, Yao Yu, Ruihao Zhu, Zhenzhe Zheng, Ke Bu, Quan Lu, Fan Wu
Proceedings of the ACM Web Conference 2023 (WWW 2023)
Risk-Aware Linear Bandits with Application in Smart Order Routing
Jingwei Ji and Renyuan Xu, and Ruihao Zhu
Proceedings of the 3rd ACM International Conference on AI in Finance (ICAIF 2022)
Safe Optimal Design with Applications in Off-Policy Learning
Ruihao Zhu and Branislav Kveton
Proceedings of the 25th International Conference on Artificial Intelligence and Statistics (AISTATS 2022)
Near-Optimal Model-Free Reinforcement Learning in Non-Stationary Episodic MDPs
Weichao Mao, Kaiqing Zhang, Ruihao Zhu, David Simchi-Levi, and Tamer Basar
Proceedings of the 38th International Conference on Machine Learning (ICML 2021)
Reinforcement Learning for Non-Stationary Markov Decision Processes: The Blessing of (More) Optimism
Wang Chi Cheung, David Simchi-Levi, and Ruihao Zhu
Proceedings of the 37th International Conference on Machine Learning (ICML 2020)
Learning to Optimize under Non-Stationarity
Wang Chi Cheung, David Simchi-Levi, and Ruihao Zhu
Proceedings of the 22nd International Conference on Artificial Intelligence and Statistics (AISTATS 2019)
Coresets for Differentially Private K-Means Clustering and Applications to Privacy in Mobile Sensor Networks
Dan Feldman, Chongyuan Xiang, Ruihao Zhu, and Daniela Rus
Proceedings of the 26th International Conference on Information Processing in Sensor Networks (IPSN 2017)
Threshold Bandits, With and Without Censored Feedback
Jacob Abernethy, Kareem Amin, and Ruihao Zhu
Advances in Neural Information Processing Systems 29 (NIPS 2016)
Differentially Private and Strategy-Proof Spectrum Auction with Approximate Revenue Maximization
Ruihao Zhu and Kang G. Shin
Proceedings of the 2015 IEEE International Conference on Computer Communications (INFOCOM 2015)
Differentially Private Spectrum Auction with Approximate Revenue Maximization
Ruihao Zhu, Zhijing Li, Fan Wu, Kang G. Shin, and Guihai Chen
Proceedings of the 15th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc 2014)
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