Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diversity-Driven Extensible Hierarchical Reinforcement Learning   Hierarchical reinforcement learning (HRL) has recently shown promising
advances on speeding up learning, improving the exploration, and discovering
intertask transferable skills. Most recent works focus on HRL with two levels,
i.e., a master policy manipulates subpolicies, which in turn manipulate
primitive actions. However, HRL with multiple levels is usually needed in many
real-world scenarios, whose ultimate goals are highly abstract, while their
actions are very primitive. Therefore, in this paper, we propose a
diversity-driven extensible HRL (DEHRL), where an extensible and scalable
framework is built and learned levelwise to realize HRL with multiple levels.
DEHRL follows a popular assumption: diverse subpolicies are useful, i.e.,
subpolicies are believed to be more useful if they are more diverse. However,
existing implementations of this diversity assumption usually have their own
drawbacks, which makes them inapplicable to HRL with multiple levels.
Consequently, we further propose a novel diversity-driven solution to achieve
this assumption in DEHRL. Experimental studies evaluate DEHRL with five
baselines from four perspectives in two domains; the results show that DEHRL
outperforms the state-of-the-art baselines in all four aspects.

14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol