SwiftReinforce

Introduction

Implementation of the Reinforce algorithm using Swift for Tensorflow.

Install Swift for Tensorflow

This project is based on Swift for Tensorflow. To install Swift for Tensorflow visit https://github.com/tensorflow/swift/.

The Tensorflow library for Swift is published in the stdlib/public/TensorFlow directory.

Make sure to change the Xcode build system to legacy (File > Project Settings > Build System).

Install OpenAI Gym

Take the following steps to install OpenAI Gym using Virtualenv:

1. System wide install

   sudo pip3 install -U virtualenv

2. Create a Virtualenv environment:

   virtualenv --system-site-packages gym

3. Activate the Virtualenv environment:

   cd gym
   source ./bin/activate

4. Install OpenAI Gym into the active Virtualenv:

   pip3 install gym
   pip3 install gym[atari]

Requirements

• Xcode 11.0 or later
• Swift for TensorFlow 0.5

Results

FrozenLake

0 0.00 0.0
2000 0.01 0.8
4000 0.00 0.8
6000 0.02 0.8
8000 0.02 0.8
10000 0.02 0.8
12000 0.00 0.8
14000 0.04 0.8
16000 0.08 0.8
18000 0.14 0.8
20000 0.26 0.8
8.262566555

Pong

0 0.00 0.0
40000 -19.70 73.3
80000 -18.00 73.3
120000 -19.30 73.5
160000 -17.70 73.4
200000 -17.40 73.3
240000 -17.40 73.3
280000 -16.90 73.2
320000 -16.90 73.2
360000 -16.40 73.3
400000 -17.30 73.2
440000 -16.30 73.3
480000 -13.60 73.2
520000 -15.20 73.2
560000 -12.60 73.2
600000 -12.30 73.2
640000 -12.60 73.3
680000 -10.00 73.5
720000 -12.10 71.8
760000 -9.70 71.8
800000 -7.50 71.9
840000 -8.40 71.9
880000 -2.50 72.1
920000 1.10 72.0
960000 2.70 71.9
1000000 -4.30 72.0