13 citations · 37 across the 16 of their papers we have counts for
17 papers
A Performative Control Approach to Day-to-Day Traffic Signal Retiming
Shuchang Jiang, Xinwu Qian, Santiago Segarra +1
Conventional fixed-time traffic signal optimization and recent day-to-day signal retiming generally model route adaptation under prescribed route-choice behavior and origin-destina…
Connected by Construction: Learning Tractable Near-Tour Marginals for Traveling Salesman Problems
Ke Sun, Xinyuan Zhang, Xinwu Qian
Learning-based methods for the traveling salesman problem (TSP) are often evaluated through the tours produced after decoding or search, but the learned object itself frequently li…
Neural Certificate Pricing for Combinatorial Optimization Problems
Jingyi Chen, Xinyuan Zhang, Xinwu Qian
Combinatorial optimization (CO) problems are difficult because certifiable discrete structure induces exponential search. One needs to search over the set exponentially many candid…
Unsupervised Learning for the Elementary Shortest Path Problem
Jingyi Chen, Xinyuan Zhang, Xinwu Qian
The Elementary Shortest-Path Problem(ESPP) seeks a minimum cost path from s to t that visits each vertex at most once. The presence of negative-cost cycles renders the problem NP-h…
Robust and Flexible Microtransit Design: Chance-Constrained Dial-a-Ride Problem with Soft Time Windows
Hongli Li, Zengxiang Lei, Xinwu Qian +1
Microtransit offers a promising blend of rideshare flexibility and public transit efficiency. In practice, it faces unanticipated but spatially aligned requests, passengers seeking…
Impact of Transportation Network Companies on Labor Supply and Wages for Taxi Drivers
Lu Ling, Xinwu Qian, Satish V. Ukkusuri
While the growth of TNCs took a substantial part of ridership and asset value away from the traditional taxi industry, existing taxi market policy regulations and planning models r…
DCA: Delayed Charging Attack on the Electric Shared Mobility System
Shuocheng Guo, Hanlin Chen, Mizanur Rahman +1
An efficient operation of the electric shared mobility system (ESMS) relies heavily on seamless interconnections among shared electric vehicles (SEV), electric vehicle supply equip…
Optimal Drive-by Sensing in Urban Road Networks with Large-scale Ridesourcing Vehicles
Shuocheng Guo, Xinwu Qian
The sensing and monitoring of the urban road network contribute to the efficient operation of the urban transportation system and the functionality of urban systems. However, tradi…
A branch-cut-and-price algorithm for a dial-a-ride problem with minimum disease-transmission risk
Shuocheng Guo, Iman Dayarian, Jian Li +1
This paper investigates a variant of the dial-a-ride problem (DARP), namely Risk-aware DARP (RDARP). Our RDARP extends the DARP by (1) minimizing a weighted sum of travel cost and…
DROP: Deep relocating option policy for optimal ride-hailing vehicle repositioning
Xinwu Qian, Shuocheng Guo, Vaneet Aggarwal
In a ride-hailing system, an optimal relocation of vacant vehicles can significantly reduce fleet idling time and balance the supply-demand distribution, enhancing system efficienc…
Understanding charging dynamics of fully-electrified taxi services using large-scale trajectory data
Tian Lei, Shuocheng Guo, Xinwu Qian +1
An accurate understanding of "when, where and why" of charging activities is crucial for the optimal planning and operation of E-shared mobility services. In this study, we leverag…
Spatiotemporal impacts of human activities and socio-demographics during the COVID-19 outbreak in the U.S
Lu Ling, Xinwu Qian, Satish V. Ukkusuri +1
Understanding influencing factors is essential for the surveillance and prevention of infectious diseases, and the factors are likely to vary spatially and temporally as the diseas…
Charging-as-a-Service: On-demand battery delivery for light-duty electric vehicles for mobility service
Shuocheng Guo, Xinwu Qian, Jun Liu
This study presents an innovative solution for powering electric vehicles, named Charging-as-a-Service (CaaS), that concerns the potential large-scale adoption of light-duty electr…
Demand-Adaptive Route Planning and Scheduling for Urban Hub-based High-Capacity Mobility-on-Demand Services
Xinwu Qian, Jiawei Xue, Satish V. Ukkusuri
In this study, we propose a three-stage framework for the planning and scheduling of high-capacity mobility-on-demand services (e.g., micro transit and flexible transit) at urban a…
Modeling disease spreading with adaptive behavior considering local and global information dissemination
Xinwu Qian, Jiawei Xue, Satish V. Ukkusuri
The study proposes a modeling framework for investigating the disease dynamics with adaptive human behavior during a disease outbreak, considering the impacts of both local observa…
Modeling the spread of infectious disease in urban areas with travel contagion
Xinwu Qian, Satish V. Ukkusuri
In this study, we develop the mathematical model to understand the coupling between the spreading dynamics of infectious diseases and the mobility dynamics through urban transporta…
Scaling of contact networks for epidemic spreading in urban transit systems
Xinwu Qian, Lijun Sun, Satish V. Ukkusuri
Improved mobility not only contributes to more intensive human activities but also facilitates the spread of communicable disease, thus constituting a major threat to billions of u…