RL algorithm PPO and IRL algorithm AIRL written with Tensorflow.

Overview

Key packages verison

  • numpy==1.16
  • tensorflow==1.14
  • gym==0.15.4
  • ray==1.2

What can this repository do

  • Reinforcement learning algorithm PPO, with parallel sampling, continous/discrete action space
  • Inverse reinforcement learning algorithm AIRL, with parallel sampling, continous/discrete action space
  • Expert trajectory generator
  • parallel sampling feature can greatly speed up the overall training process especially with HPC

Run the codes

  • PPO: python run_ppo_combo_gym.py
  • Generate expert trajectory: python sample_expert_data.py
  • AIRL: python run_AIRL_combo_gym.py

Tune the hyperparameter

  • The hyperparameters can be changed in argparser() or command line, e.g., python run_ppo_combo_gym.py --clip_value 0.1
  • The hyperparameters args.num_parallel_sampler setups the number of parallel samplers to be deployed
  • The hyperparameters args.sample_size setups the total number of samples per iteration

Some results

  • The PPO and AIRL have been tested with openai-gym environments, e.g., CartPole-v1, Pendulum-v0, and BipedalWalker-v2
  • Some training results and models are saved in the directories
  • The training result with BipedalWalker-v2 is shown here as an example.


PPO: AIRL:

Owner
Fangjian Li
Fangjian Li
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