Research

Online Facility Location: Running Stores on Wheels with Spatial Demand Learning

Junyu Cao, Wei Qi, and Yan Zhang

Manufacturing & Service Operations Management, 28(3): 935–955, 2026.

• Winner, 2026 INFORMS TSL SIG Paper Award under Urban Transportation
• Runner-up, 2026 CORS Transportation and Logistics SIG Best Student Paper Award

Cascading Bandits: Optimizing Recommendation Frequency in Delayed Feedback Environments

Dairui Wang, Junyu Cao, Yan Zhang, and Wei Qi

Advances in Neural Information Processing Systems (NeurIPS), 36: 78894–78905, 2023.

Scores Are Not Decisions: Cost-Aware Stopping for Tool Acquisition in LLM Agents

With Yicheng Feng, Yan Cheng, and Wei Qi

Preliminary version available on arXiv.

Pickup Location Partnerships for Omnichannel Retail and Last-Mile Delivery

With Mehmet Gumus