Title
Learning Forward And Inverse Kinematics Maps Efficiently
Abstract
When learning forward and inverse kinematics maps of manipulators, usually little attention is paid to data-efficiency, i.e., the accuracy gained per action-outcome sample.This paper examines properties of popular (online) learning techniques and demonstrates that - regardless of the employed exploration strategy - the structure of kinematics mappings does not allow for a practically viable trade-off between the number of samples and the resulting approximation error for manipulators with more than a few DoFs - unless tailored parametric models are employed.We discuss suitable choices for these parametric models for both rigid and elastic discretely-actuated robots and compare their data-efficiency to that of popular exploratory learning approaches relying on non-parametric models. Our theoretical considerations are confirmed by various experimental results for inverse kinematics mappings of rigid and omnielastic manipulators.
Year
DOI
Venue
2018
10.1109/IROS.2018.8593833
2018 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS)
Field
DocType
ISSN
Parametric model,Kinematics,Inverse kinematics,Computer science,Exploratory learning,Algorithm,Control engineering,Solid modeling,Robot,Approximation error
Conference
2153-0858
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Daniel Kubus1489.02
Rania Rayyes221.75
Jochen J. Steil391087.50