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conference paper

How robot morphology and training order affect the learning of multiple behaviors

Auerbach, Joshua  
•
Bongard, Josh C.
2009
2009 IEEE Congress on Evolutionary Computation
2009 IEEE Congress on Evolutionary Computation (CEC)

Automatically synthesizing behaviors for robots with articulated bodies poses a number of challenges beyond those encountered when generating behaviors for simpler agents. One such challenge is how to optimize a controller that can orchestrate dynamic motion of different parts of the body at different times. This paper presents an incremental shaping method that addresses this challenge: it trains a controller to both coordinate a robot's leg motions to achieve directed locomotion toward an object, and then coordinate gripper motion to achieve lifting once the object is reached. It is shown that success is dependent on the order in which these behaviors are learned, and that despite the fact that one robot can master these behaviors better than another with a different morphology, this learning order is invariant across the two robot morphologies investigated here. This suggests that aspects of the task environment, learning algorithm or the controller dictate learning order more than the choice of morphology.

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Type
conference paper
DOI
10.1109/CEC.2009.4982928
Author(s)
Auerbach, Joshua  
Bongard, Josh C.
Date Issued

2009

Publisher

IEEE

Published in
2009 IEEE Congress on Evolutionary Computation
Start page

39

End page

46

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
IMT  
Event nameEvent placeEvent date
2009 IEEE Congress on Evolutionary Computation (CEC)

Trondheim, Norway

18-21 05 2009

Available on Infoscience
December 13, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/97934
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