A rationally oriented forgettable profit sharing

In this paper, the Rationally Oriented Forgettable Profit Sharing method (RFPS) for reinforcement learning is proposed. Although profit sharing (PS) provides good performances in real environments, its learning is often slow in long-term tasks because it is difficult to determine the appropriate discount rate which satisfies the Miyazaki rational theorem. There are several rationality-relaxed PS methods which work well for such tasks. However, these PS methods may result in many irrational loops. The proposed method fulfills rationality by forgetting the reinforced irrational loops. This method can be easily combined with ordinary PS methods and performs well in long-term tasks. Simulation results show that the proposed method can learn more efficiently than conventional PS methods. (c) 2013 Wiley Periodicals, Inc. Electron Comm Jpn, 96(7): 11-18, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/ecj.11461