Education:

Ph.D. in Industrial Engineering, University of Illinois at Urbana-Champaign, 2017

B.E. in Systems Engineering and Engineering Management, The Chinese University of Hong Kong, 2011

Research Interests: Inventory control, Revenue management, Data-driven learning algorithms

Publications:

• Kairen Zhang, Xiangyu Gao, Zhanyue Wang, and Sean X. Zhou (2025). Sampling-Based Approximation for Serial Multi-Echelon Inventory Systems, accepted by Management Science, (Link)

• Xiangyu Gao, Stefanus Jasin, Sajjad Najafi, and Huanan Zhang (2022). Joint Learning and Optimization of Multi-Product Pricing (and Ranking) Under a General Cascade Click Model, Management Science 68(10): 7362-7382. (Link)

• Xiangyu Gao and Huanan Zhang (2022). An Efficient Learning Framework for Multi-Product Inventory Systems with Customer Choices, Production and Operations Management 31(6), 2492-2516. (Link)

• Xin Chen and Xiangyu Gao (2019). Stochastic Optimization with Decisions Truncated by Positively Dependent Random Variables, Operations Research 67(5): 1321-1327. (Link)

• Xin Chen, Xiangyu Gao, Zhenyu Hu, and Qiong Wang (2019). Population Monotonicity in Newsvendor Games, Management Science 65(5): 2142-2160. (Link)

• Xin Chen, Xiangyu Gao, and Zhan Pang (2018). Preservation of Structural Properties in Optimization with Decisions Truncated by Random Variables and Its Applications, Operations Research 66(2): 340-357. (Link)

• Xin Chen, Xiangyu Gao, and Zhenyu Hu (2015). A New Approach to Two-location Joint Inventory and Transshipment Control via L-natural-convexity, Operations Research Letters, 43(1), 65-68. (Link)

Selected Working Papers:

• Yufei Zhao, Xiangyu Gao, and Zhanyue Wang. Online Learning for Multi-echelon Inventory Systems with Regular and Expedited Shipping, working paper, (Link)

• Saif Benjaafar, Xiangyu Gao, Xiaobing Shen, and Huanan Zhang. Online Learning for Pricing in On-Demand Vehicle Sharing Networks, working paper, (Link)

• Zhanyue Wang, Xiangyu Gao, Kairen Zhang, and Sean X. Zhou. A Hybrid Sampling-Based and Gradient Descent Learning Method and Its Applications in Inventory Management, working paper, (Link)

• Xiangyu Gao, Xin Chen, and Ying-Ju Chen. Dynamic Pricing When Customers have Time-Inconsistent Preferences, working paper, (Link)

Book Chapters:

• Xiangyu Gao and Huanan Zhang (2022). Inventory Control with Censored Demand, in Chen, Xi, Stefanus Jasin, and Cong Shi, eds. The Elements of Joint Learning and Optimization in Operations Management. Springer Series in Supply Chain Management, Vol. 18. Springer, 2022.  (Link)

Teaching Courses:

• DSME6652, Operations Analytics (Master of Science)

• DSME4020, Decision Modeling and Analytics (Undergraduate)

• DSME2030, Operations Management (Undergraduate)