Hierarchical Reinforcement Learning

https://arxiv.org/abs/1604.06057

Models:

1. Tabular Hierarchical Q-Learning
2. h-DQN for discrete action space
3. h-DQN for continuous action space
4. Policy Gradient Methods
5. Hierarchical Policy Gradients

Environments:

1. Simple MDP
2. FetchReach
3. InvertedDoublePendullum
4. Reacher