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Hands-On Intelligent Agents with OpenAI Gym

You're reading from   Hands-On Intelligent Agents with OpenAI Gym Your guide to developing AI agents using deep reinforcement learning

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788836579
Length 254 pages
Edition 1st Edition
Languages
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Author (1):
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Palanisamy Palanisamy
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Palanisamy
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Table of Contents (12) Chapters Close

Preface 1. Introduction to Intelligent Agents and Learning Environments FREE CHAPTER 2. Reinforcement Learning and Deep Reinforcement Learning 3. Getting Started with OpenAI Gym and Deep Reinforcement Learning 4. Exploring the Gym and its Features 5. Implementing your First Learning Agent - Solving the Mountain Car problem 6. Implementing an Intelligent Agent for Optimal Control using Deep Q-Learning 7. Creating Custom OpenAI Gym Environments - CARLA Driving Simulator 8. Implementing an Intelligent - Autonomous Car Driving Agent using Deep Actor-Critic Algorithm 9. Exploring the Learning Environment Landscape - Roboschool, Gym-Retro, StarCraft-II, DeepMindLab 10. Exploring the Learning Algorithm Landscape - DDPG (Actor-Critic), PPO (Policy-Gradient), Rainbow (Value-Based) 11. Other Books You May Enjoy

Understanding the Gym interface

Let's continue our Gym exploration by understanding the interface between the Gym environment and the agents that we will develop. To help us with that, let's have another look at the picture we saw in Chapter 2, Reinforcement Learning and Deep Reinforcement Learning, when we were discussing the basics of reinforcement learning:

Did the picture give you an idea about the interface between the agent and the environment? We will make your understanding secure by going over the description of the interface.

After we import gym , we make an environment using the following line of code:

 env = gym.make("ENVIRONMENT_NAME") 

Here, ENVIRONMENT_NAME is the name of the environment we want, chosen from the list of the environments we found installed on our system. From the previous diagram, we can see that the first arrow comes from the...

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