Title
The Value Function Polytope in Reinforcement Learning.
Abstract
We establish geometric and topological properties of the space of value functions in finite state-action Markov decision processes. Our main contribution is the characterization of the nature of its shape: a general polytope (Aigner et al., 2010). To demonstrate this result, we exhibit several properties of the structural relationship between policies and value functions including the line theorem, which shows that the value functions of policies constrained on all but one state describe a line segment. Finally, we use this novel perspective to introduce visualizations to enhance the understanding of the dynamics of reinforcement learning algorithms.
Year
Venue
Field
2019
arXiv: Learning
Computer science,Bellman equation,Polytope,Artificial intelligence,Machine learning,Reinforcement learning
DocType
Volume
Citations 
Journal
abs/1901.11524
1
PageRank 
References 
Authors
0.35
9
5
Name
Order
Citations
PageRank
Robert Dadashi132.08
Adrien Ali Taïga210.35
Nicolas Le Roux31684145.19
Dale Schuurmans42760317.49
Marc G. Bellemare53098152.94