4 papers
Emergency Preemption Without Online Exploration: A Decision Transformer Approach
Haoran Su, Hanxiao Deng, Yandong Sun
Emergency vehicle (EV) response time is a critical determinant of survival outcomes, yet deployed signal preemption strategies remain reactive and uncontrollable. We propose a retu…
LightSim: A Lightweight Cell Transmission Model Simulator for Traffic Signal Control Research
Haoran Su, Hanxiao Deng
Reinforcement learning for traffic signal control is bottlenecked by simulators: training in SUMO takes hours, reproducing results often requires days of platform-specific setup, a…
Spatiotemporal Decision Transformer for Traffic Coordination
Haoran Su, Yandong Sun, Hanxiao Deng
Traffic signal control is a critical challenge in urban transportation, requiring coordination among multiple intersections to optimize network-wide traffic flow. While reinforceme…
The End of Reward Engineering: How LLMs Are Redefining Multi-Agent Coordination
Haoran Su, Yandong Sun, Congjia Yu
Reward engineering, the manual specification of reward functions to induce desired agent behavior, remains a fundamental challenge in multi-agent reinforcement learning. This diffi…