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Learning Flexible Full Body Kinematics for Humanoid Tool Use

By Matthias Rolf, Jochen J. Steil and Michael Gienger


We show that inverse kinematics of different tools can be efficiently learned with a single recurrent neural network. Our model exploits all upper body degrees of freedom of the Honda humanoid robot research platform. Both hands are controlled at the same time with parametrized tool geometry. We show that generalization both in space as well as across tools is possible from very few training data. The network even permits extrapolation beyond the training data. For training we use an efficient online scheme for recurrent reservoir networks utilizing supervised backpropagation-decorrelation (BPDC) output adaptation and an unsupervised intrinsic plasticity (IP) reservoir optimization

Topics: Index Terms—Full Body Kinematics, Neural Networks, Tool Use, Humanoid Robots
Year: 2010
DOI identifier: 10.1109/est.2010.20
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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