Reinforcement Learning Agents

Implemented for Tensorflow 2.0+

New Updates!

• DDPG with prioritized replay
• Primal-Dual DDPG for CMDP

Future Plans

• SAC Discrete

Usage

• Install dependancies imported (my tf2 conda env as reference)
• Each file contains example code that runs training on CartPole env
• Training: python3 TF2_DDPG_LSTM.py
• Tensorboard: tensorboard --logdir=DDPG/logs

Hyperparameter tuning

• Install hyperopt https://github.com/hyperopt/hyperopt
• Optional: switch agent used and configure param space in hyperparam_tune.py
• Run: python3 hyperparam_tune.py

Agents

Agents tested using CartPole env.

Name	On/off policy	Model	Action space support
DQN	off-policy	Dense, LSTM	discrete
DDPG	off-policy	Dense, LSTM	discrete, continuous
AE-DDPG	off-policy	Dense	discrete, continuous
SAC:bug:	off-policy	Dense	continuous
PPO	on-policy	Dense	discrete, continuous

Contrained MDP

Name	On/off policy	Model	Action space support
Primal-Dual DDPG	off-policy	Dense	discrete, continuous

Models

Models used to generate the demos are included in the repo, you can also find q value, reward and/or loss graphs

Demos

DQN Basic, time step = 4, 500 reward	DQN LSTM, time step = 4, 500 reward

DDPG Basic, 500 reward	DDPG LSTM, time step = 5, 500 reward

AE-DDPG Basic, 500 reward	PPO Basic, 500 reward