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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Ji-Yu Wang

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Book Open access Aug 2026

Orchestrating Reasoning and Reaction: An Asynchronous Hierarchical Framework for LLM-driven Traffic Signal Control

Network-wide coordinated Traffic Signal Control (TSC) is critical for enhancing urban mobility. However, existing approaches face a fundamental trade-off: traditional Multi-Agent Reinforcement Learning (MARL) is often hindered by a myopic observational scope, while Large Language Model (LLM) agents are constrained by h...

Fansheng Sun, Ji-Yu Wang, Zhidan Liu · 0 citations
Book Open access Aug 2026

Orchestrating Reasoning and Reaction: An Asynchronous Hierarchical Framework for LLM-driven Traffic Signal Control

To bridge the gap between reasoning depth and real-time constraints, Astra incorporates an asynchronous synergetic protocol featuring strategic locking for stability and proactive feedback for adaptive re-planning, offering superior efficiency, robustness, and generalization across diverse urban scenarios.

Fansheng Sun, Jiyu Wang, Zhidan Liu · 0 citations

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