Papers › Using Fuzzy Logic to Learn Abstract Policies in Large-Scale Multi-Agent Reinforcement Learning
Using Fuzzy Logic to Learn Abstract Policies in Large-Scale Multi-Agent Reinforcement Learning
Jingchen Li; Haobin Shi; Kao-Shing Hwang
Large-scale multiagent reinforcement learning requires huge computation and space costs, and the too-long execution process makes it hard to train policies for agents. This work proposes a concept of fuzzy agent, which is a new paradigm for training homogeneous agents. Aiming at a lightweight and affordable reinforcement learning mechanism for large-scale homogeneous multiagent systems, we break the one-to-one correspondence between agent and policy, designing abstract agents as the substitute for the multiagent to interact with the environment. The Markov decision process models for these abstract agents are conducted by fuzzy logic, which also acts on the behavior mapping from abstract agent to entity. Specifically, just the abstract agents execute their policy at a time step, and the concrete behaviors are generated by simple matrix operations. The proposal has lower space and computation complexities because the number of abstract agents is far less than that of entities, and the coupling among agents is retained implicitly. Compared with other approximation and simplification methods, the proposed fuzzy agent not only greatly reduces required computing resources but also ensures the effectiveness of the learned policies. Several experiments are conducted to validate our method. The results show that the proposal outperforms the baseline methods, while it has satisfactory zero-shot and few-shot transfer abilities.
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