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Cleanest Deep Reinforcement Learning Implementation Based on Web MVC

Project description

CircleCI Maintainability Test Coverage Job Status Report

mvc-drl

Clean deep reinforcement learning codes based on Web MVC architecture with complete unit tests

motivation

Implementing deep reinforcement learning algorithms is easy to make up messy codes because interaction loop between an environment and an agent requires a lot of dependencies among classes. Even deep learning requires special skills to build clean codes.

To think out of the box, Web engineers spent years on studying MVC (model-view-controller) architecture to build systems with tidy codes to handle interaction between Web and users. Here, I found that this MVC architecture is very useful insight even for deep reinforcement learning implementation. MVC provides a direction to an architecture with less dependencies, which would be nicer for unit testing.

installation

nvidia-docker

You can use docker to setup and run experiments.

$ ./scripts/build.sh

Once you built the container, you can start a container with nvidia runtime via ./scripts/up.sh.

$ ./scripts/up.sh
root@a84ab59aa668:/home/app#  ls
Dockerfile  README.md    example.confing.json  graphs            mvc      scripts  tests
LICENSE     examples     logs                  requirements.txt  test.sh  tools
root@a84ab59aa668:/home/app#

manual

You need to install packages written in requirements.txt and tensorflow.

$ pip install -r requirements.txt
$ pip install tensorflow-gpu tensorflow-probability-gpu
# if you run example scripts
$ pip install pybullet roboschool

If you have a problem of installing tensorflow probability, check tensorflow version.

install as a library

This repository is also available on PyPI. You can implement extra algorithms built on top of mvc-drl.

$ pip install mvc

:warning: This reposiotry is under development so that interfaces might be frequently changed.

algorithms

For academic usage, we provide baseline implementations that you might need to compare.

  • Proximal Policy Optimization
  • Deep Deterministic Policy Gradients
  • Soft Actor-Critic

Ant performance

Each point represents an average evaluation reward of 10 episodes. Pretty much same performance has been achieved as a paper of Soft Actor-Critic.

PPO

$ python -m examples.ppo --env Ant-v2

ppo

DDPG

$ python -m examples.ddpg --env Ant-v2

ddpg

SAC

$ python -m examples.sac --env Ant-v2 --reward-scale 5

sac

comparison

comparison

log visualization

All logging data is saved under logs directory as csv files and visualization tool data. Use --log-adapter option in example codes to switch tensorboard and visdom as visualization (default: tensorboard).

tensorboard

$ tensorboard --logdir logs

visdom

To use visdom, you need to fill host information of a visdom server.

$ mv example.config.json config.json
$ vim config.json # fill visdom section

Before running experiments, start the visdom server.

$ visdom

matplotlib

You can visualize with tools/plot_csv.py by directly pointing to csv files.

$ python tools/plot_csv.py <path to csv> <path to csv> ...

By default, legends are set with paths of files. If you want to set them manually, use label option.

$ python tools/plot_csv.py --label=experiment1 --label=experiment2 <path to csv> <path to csv>

unit testing

To gurantee code quality, all functions and classes including neural networks must have unit tests.

Following command runs all unit tests under tests directory.

$ ./test.sh

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