Title
Curious Hierarchical Actor-Critic Reinforcement Learning.
Abstract
Hierarchical abstraction and curiosity-driven exploration are two common paradigms in current reinforcement learning approaches to break down difficult problems into a sequence of simpler ones and to overcome reward sparsity. However, there is a lack of approaches that combine these paradigms, and it is currently unknown whether curiosity also helps to perform the hierarchical abstraction. As a novelty and scientific contribution, we tackle this issue and develop a method that combines hierarchical reinforcement learning with curiosity. Herein, we extend a contemporary hierarchical actor-critic approach with a forward model to develop a hierarchical notion of curiosity. We demonstrate in several continuous-space environments that curiosity can more than double the learning performance and success rates for most of the investigated benchmarking problems. We also provide our source code (https://github.com/knowledgetechnologyuhh/goal_conditioned_RL_baselines) and a supplementary video (https://www2.informatik.uni-hamburg.de/wtm/videos/chac_icann_roeder_2020.mp4).
Year
DOI
Venue
2020
10.1007/978-3-030-61616-8_33
ICANN (2)
DocType
Citations 
PageRank 
Conference
1
0.35
References 
Authors
0
4
Name
Order
Citations
PageRank
Röder Frank110.35
Manfred Eppe26311.60
Nguyen Phuong D. H.310.35
Stefan Wermter41100151.62