Title
Accounting for Task-Difficulty in Active Multi-Task Robot Control Learning
Abstract
Contextual policy search is a reinforcement learning approach for multi-task learning in the context of robot control learning. It can be used to learn versatilely applicable skills that generalize over a range of tasks specified by a context vector. In this work, we combine contextual policy search with ideas from active learning for selecting the task in which the next trial will be performed. Moreover, we use active training set selection for reducing detrimental effects of exploration in the sampling policy. A core challenge in this approach is that the distribution of the obtained rewards may not be directly comparable between different tasks. We propose the novel approach PUBSVE for estimating a reward baseline and investigate empirically on benchmark problems and simulated robotic tasks to which extent this method can remedy the issue of non-comparable reward.
Year
DOI
Venue
2015
10.1007/s13218-015-0363-2
KI
Keywords
Field
DocType
Contextual policy search, Multi-task learning, Active learning
Robot learning,Robot control,Multi-task learning,Active learning,Active learning (machine learning),Computer science,Simulation,Unsupervised learning,Artificial intelligence,Machine learning,Proactive learning,Reinforcement learning
Journal
Volume
Issue
ISSN
29
4
1610-1987
Citations 
PageRank 
References 
2
0.38
16
Authors
4
Name
Order
Citations
PageRank
Alexander Fabisch1113.57
Jan Hendrik Metzen237427.06
M. M. Krell3457.53
Frank Kirchner414324.53