ISyE Seminar Series: Hai Wang


Hai Wang

"Ride-Sourcing Systems & Multiple-Objective Online Ride Matching"

Presentation by Professor Hai Wang
School of Information Systems
Singapore Management University

Wednesday, January 20
3:30-5:00 PM CST — Graduate Seminar and Reception (Zoom)

About the seminar:

We propose a general framework to study the on-demand shared ride-sourcing transportation systems and summarize the relevant research problems in four areas, namely, demand, supply, platform operation, and system problems. We then focus on the problem of online matching in the ride-sourcing systems. The platforms match passengers and drivers in real-time without observing future information, considering multiple objectives such as pick-up time, platform revenue, and service quality. We develop an efficient online matching policy that adaptively balances the trade-offs between multiple objectives in a dynamic setting and provide theoretical performance guarantees for the policy. We prove that the proposed adaptive matching policy can achieve the solution that minimizes the Euclidean distance to any pre-determined multi-objective target. Through numerical experiments and industrial testing using real data from a ride-sourcing platform, we demonstrate that our approach is able to arrive at a delicate balance among multiple objectives and bring value to all the stakeholders in the ride-sourcing ecosystem. 

Related work:

Ridesourcing systems: A framework and review (pdf)
Multi-Objective Online Ride-Matching (pdf)


Dr. Wang is an Assistant Professor in Singapore Management University and a Visiting Assistant Professor at the Heinz College of Information Systems and Public Policy at Carnegie Mellon University. He received a Bachelor’s degree from Tsinghua University and a doctoral degree in operations research from MIT. His research has focused on methodologies of analytics and optimization, data-driven decision-making, and machine learning algorithms, and their applications in the general context of smart cities, including transportation, mobility, and logistics systems. He has published in leading journals such as Transportation Science, Transportation Research Part B, American Economic Review P&P, and M&SOM.  He serves as the guest editor for the Special Issue on Innovative Shared Transportation in Transportation Research Part B and Special Issue on Innovation in Transportation-Enabled Urban Services in Service Science, as a reviewer for over 40 academic journals.  


Seminar Video:


Start date
Wednesday, Jan. 20, 2021, 3:30 p.m.
End date
Wednesday, Jan. 20, 2021, 5 p.m.