AUTHOR=Rivera Corban , Popek Katie M. , Ashcraft Chace , Staley Edward W. , Katyal Kapil D. , Paulhamus Bart L. 

TITLE=Learning generalizable behaviors from demonstration

JOURNAL=Frontiers in Neurorobotics

VOLUME=16

YEAR=2022

URL=https://www.frontiersin.org/journals/neurorobotics/articles/10.3389/fnbot.2022.932652

DOI=10.3389/fnbot.2022.932652

ISSN=1662-5218

ABSTRACT=<p>Generalizing prior experiences to complete new tasks is a challenging and unsolved problem in robotics. In this work, we explore a novel framework for control of complex systems called Primitive Imitation for Control (<italic>PICO</italic>). The approach combines ideas from imitation learning, task decomposition, and novel task sequencing to generalize from demonstrations to new behaviors. Demonstrations are automatically decomposed into existing or missing sub-behaviors which allows the framework to identify novel behaviors while not duplicating existing behaviors. Generalization to new tasks is achieved through dynamic blending of behavior primitives. We evaluated the approach using demonstrations from two different robotic platforms. The experimental results show that <italic>PICO</italic> is able to detect the presence of a novel behavior primitive and build the missing control policy.</p>