Title
Statistics and Samples in Distributional Reinforcement Learning.
Abstract
We present a unifying framework for designing and analysing distributional reinforcement learning (DRL) algorithms in terms of recursively estimating statistics of the return distribution. Our key insight is that DRL algorithms can be decomposed as the combination of some statistical estimator and a method for imputing a return distribution consistent with that set of statistics. With this new understanding, we are able to provide improved analyses of existing DRL algorithms as well as construct a new algorithm (EDRL) based upon estimation of the expectiles of the return distribution. We compare EDRL with existing methods on a variety of MDPs to illustrate concrete aspects of our analysis, and develop a deep RL variant of the algorithm, ER-DQN, which we evaluate on the Atari-57 suite of games.
Year
Venue
Field
2019
arXiv: Machine Learning
Computer science,Artificial intelligence,Machine learning,Reinforcement learning
DocType
Volume
Citations 
Journal
abs/1902.08102
0
PageRank 
References 
Authors
0.34
10
6
Name
Order
Citations
PageRank
Mark Rowland1112.92
Robert Dadashi232.08
Saurabh Kumar Singh32212.90
Rémi Munos400.68
Marc G. Bellemare53098152.94
William Dabney627017.86