Work

Robot motor skill coordination with EM-based Reinforcement Learning

Year: 2010
Type: conference-paper
Abstract: We present an approach allowing a robot to acquire new motor skills by learning the couplings across motor control variables. The demonstrated skill is first encoded in a compact form through a modified version of Dynamic Movement Primitives (DMP) which encapsulates correlation information. Expectation-Maximization based Reinforcement Learning is then used to modulate the mixture of dynamical systems initialized from the user's demonstration. The approach is evaluated on a torque-controlled 7 DOFs Barrett WAM robotic arm. Two skill learning experiments are conducted: a reaching task where the robot needs to adapt the learned movement to avoid an obstacle, and a dynamic pancake-flipping task.
Language: English
Open Access status: green
OpenAlex ID: W2016765487
FWCI: 11.17
Cites: 25
Cited by: 258
Related to: 10