Title
Transferring Generalizable Motor Primitives From Simulation To Real World
Abstract
Reinforcement learning provides robots with an autonomous learning framework where a skill can he learned by exploration. Exploration in real world is, however, inherently unsafe and time consuming, and causes wear and tear. To address these, learning policies in simulation and then transferring them to physical systems has been proposed. In this letter, we propose a novel sample-efficient transfer approach, which is agnostic to the dynamics of a simulated system and combines it with incremental learning. Instead of transferring a single control policy, we transfer a generalizable contextual policy generated in simulation using one or few samples from real world to a target global model, which can generate policies across parameterized real-world situations. We studied the generalization capability of the incremental transfer framework using MuJoCo physics engine and KUKA LBR 4+. Experiments with ball-in-a-cup and basketball tasks demonstrated that the target model improved the generalization capability beyond the direct use of the source model indicating the effectiveness of the proposed framework. Experiments also indicated that the transfer capability depends on the generalization capability of the corresponding source model, similarity between source and target environment, and number of samples used for transferring.
Year
DOI
Venue
2019
10.1109/LRA.2019.2900768
IEEE ROBOTICS AND AUTOMATION LETTERS
Keywords
Field
DocType
Learning and Adaptive Systems, Model Learning for Control
Parameterized complexity,Task analysis,Wear and tear,Physical system,Physics engine,Context model,Control engineering,Artificial intelligence,Engineering,Robot,Machine learning,Reinforcement learning
Journal
Volume
Issue
ISSN
4
2
2377-3766
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Murtaza Hazara112.05
V. Kyrki265261.79