On Learning by Exchanging Advice

Details On Learning by Exchanging Advice On Learning by Exchanging Advice

2002-03-07

arxiv.org/abs/cs/0203010v1

Computer Science

Learning

12 pages, 6 figures, 1 table, accepted in Second Symposium on Adaptive Agents and Multi-Agent Systems (AAMAS-II), 2002

Scientific paper

One of the main questions concerning learning in Multi-Agent Systems is: (How) can agents benefit from mutual interaction during the learning process?. This paper describes the study of an interactive advice-exchange mechanism as a possible way to improve agents' learning performance. The advice-exchange technique, discussed here, uses supervised learning (backpropagation), where reinforcement is not directly coming from the environment but is based on advice given by peers with better performance score (higher confidence), to enhance the performance of a heterogeneous group of Learning Agents (LAs). The LAs are facing similar problems, in an environment where only reinforcement information is available. Each LA applies a different, well known, learning technique: Random Walk (hill-climbing), Simulated Annealing, Evolutionary Algorithms and Q-Learning. The problem used for evaluation is a simplified traffic-control simulation. Initial results indicate that advice-exchange can improve learning speed, although bad advice and/or blind reliance can disturb the learning performance.

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