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Self-scaling reinforcement learning for fuzzy logic controller-applications to motion control of two-link brachiation robot

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3 Author(s)
Hasegawa, Y. ; Dept. of Microeng., Nagoya Univ., Japan ; Fukuda, T. ; Shimojima, K.

In this paper, we propose a new reinforcement learning algorithm to generate a fuzzy controller for robot motions. This algorithm generates a range of continuous real-valued actions, and the reinforcement signal is self-scaled. This prevents the weights from overshooting when the system receives very large reinforcement values. Therefore, this algorithm can obtain a solution in fewer iterations. The proposed method is applied to the control of the brachiation robot, which moves dynamically from branch to branch like a gibbon swinging its body in a pendulum-like fashion. Through computer simulations, we show the fast convergence and the robustness against disturbances

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:46 ,  Issue: 6 )

Date of Publication:

Dec 1999

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