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Linwei Xin

Associate Professor (Starting July 1, 2025)

School of Operations Research and Information Engineering

Linwei Xin
Linwei Xin

Biography

Linwei Xin joined the School of Operations Research and Information Engineering (ORIE) at Cornell as an Associate Professor in July 2025. Prior to Cornell, he was an Associate Professor of Operations Management at the University of Chicago Booth School of Business. He specializes in inventory and supply chain management, where he designs cutting-edge models and algorithms that enable organizations to effectively balance supply and demand in various contexts with uncertainty.

Xin’s research using asymptotic analysis to study stochastic inventory theory is renowned and has been recognized with several prestigious INFORMS paper competition awards, including First Place in the George E. Nicholson Student Paper Competition in 2015 and the Applied Probability Society Best Publication Award in 2019. Xin’s recent interest focuses on AI for supply chains, driven by labor shortages, reshoring trends, global supply chain disruptions, and e-commerce growth. He leverages various tools such as neural networks, VC theory, applied probability, online optimization/learning, and random graph theory to address emerging challenges arising from AI-driven automation. His work targets problems in inventory management, robotics and automation in modern warehousing, dual-sourcing, real-time order fulfillment, omnichannel, and transportation network design. His research on implementing state-of-the-art multi-agent deep reinforcement learning techniques in Alibaba’s inventory replenishment system was selected as a finalist for the INFORMS 2022 Daniel H. Wagner Prize, with over 65% algorithm-adoption rate within Alibaba’s own supermarket brand Tmall Mart. His research on designing dispatching algorithms for robots in JD.com’s intelligent warehouses was recognized as a finalist for the INFORMS 2021 Franz Edelman Award, with estimated annual savings in the hundreds of millions of dollars.

Xin currently serves as an associate editor for Operations Research, Management Science, Manufacturing & Service Operations Management, and Naval Research Logistics.

Select Publications

  • Yaqi Xie, Will Ma, Linwei Xin. The Benefits of Delay to Online Decision-Making. Management Science. Forthcoming.

  • Jiaxi Liu, Shuyi Lin, Linwei Xin, Yidong Zhang. AI vs. Human Buyers: A Study of Alibaba’s Inventory Replenishment System. INFORMS Journal on Applied Analytics. 53(5) 372-387, 2023.

  • Linwei Xin. 1.79-Approximation Algorithms for Continuous Review Single-Sourcing Lost-Sales and Dual-Sourcing Inventory Models. Operations Research. 70(1) 111-128, 2022.

  • Linwei Xin, David A. Goldberg. Asymptotic Optimality of Tailored Base-Surge Policies in Dual-Sourcing Inventory Systems. Management Science. 64(1) 437-452, 2018.

  • Linwei Xin, David A. Goldberg. Optimality Gap of Constant-Order Policies Decays Exponentially in the Lead Time for Lost Sales Models. Operations Research. 64(6) 1556-1565, 2016.

Select Awards and Honors

  • Finalist for the INFORMS Daniel H. Wagner Prize for Excellence in the Practice of Advanced Analytics and Operations Research 2022
  • Finalist for the INFORMS Franz Edelman Award 2021
  • INFORMS Applied Probability Society (APS) Best Publication Award 2019
  • First Place in the INFORMS George E. Nicholson Student Paper Competition 2015
  • Second Place in the INFORMS Junior Faculty Interest Group (JFIG) Paper Competition 2015
  • Finalist in the INFORMS Manufacturing and Service Operations Management (MSOM) Student Paper Competition 2014

Education

  • Ph.D. (Operations Research), Georgia Institute of Technology 2015