Papers › Multi-Agent Reinforcement Learning for Traffic Signal Control through Universal...
Multi-Agent Reinforcement Learning for Traffic Signal Control through Universal Communication Method
Qize Jiang, Minhao Qin, Shengmin Shi, Weiwei Sun, Baihua Zheng
How to coordinate the communication among intersections effectively in real complex traffic scenarios with multi-intersection is challenging. Existing approaches only enable the communication in a heuristic manner without considering the content/importance of information to be shared. In this paper, we propose a universal communication form UniComm between intersections. UniComm embeds massive observations collected at one agent into crucial predictions of their impact on its neighbors, which improves the communication efficiency and is universal across existing methods. We also propose a concise network UniLight to make full use of communications enabled by UniComm. Experimental results on real datasets demonstrate that UniComm universally improves the performance of existing state-of-the-art methods, and UniLight significantly outperforms existing methods on a wide range of traffic situations.
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