Title
$\ell_1$ Regularized Gradient Temporal-Difference Learning.
Abstract
In this paper, we study the Temporal Difference (TD) learning with linear value function approximation. It is well known that most TD learning algorithms are unstable with linear function approximation and off-policy learning. Recent development of Gradient TD (GTD) algorithms has addressed this problem successfully. However, the success of GTD algorithms requires a set of well chosen features, which are not always available. When the number of features is huge, the GTD algorithms might face the problem of overfitting and being computationally expensive. To cope with this difficulty, regularization techniques, in particular $\ell_1$ regularization, have attracted significant attentions in developing TD learning algorithms. The present work combines the GTD algorithms with $\ell_1$ regularization. We propose a family of $\ell_1$ regularized GTD algorithms, which employ the well known soft thresholding operator. We investigate convergence properties of the proposed algorithms, and depict their performance with several numerical experiments.
Year
Venue
DocType
2016
CoRR
Journal
Volume
Citations 
PageRank 
abs/1610.01476
0
0.34
References 
Authors
3
3
Name
Order
Citations
PageRank
Dominik Meyer121.41
Hao Shen222432.93
Klaus Diepold343756.47