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Deep Reinforcement Learning Hands-On

Deep Reinforcement Learning Hands-On

By : Maxim Lapan
4.3 (34)
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Deep Reinforcement Learning Hands-On

Deep Reinforcement Learning Hands-On

4.3 (34)
By: Maxim Lapan

Overview of this book

Deep Reinforcement Learning Hands-On is a comprehensive guide to the very latest DL tools and their limitations. You will evaluate methods including Cross-entropy and policy gradients, before applying them to real-world environments. Take on both the Atari set of virtual games and family favorites such as Connect4. The book provides an introduction to the basics of RL, giving you the know-how to code intelligent learning agents to take on a formidable array of practical tasks. Discover how to implement Q-learning on 'grid world' environments, teach your agent to buy and trade stocks, and find out how natural language models are driving the boom in chatbots.
Table of Contents (21 chapters)
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20
Index

Chapter 9. Policy Gradients – An Alternative

In this first chapter of part three of the book, we’ll consider an alternative way to handle Markov Decision Process (MDP) problems, which forms a full family of methods called Policy Gradients (PG). The chapter will present an overview of the methods, their motivation, and their strengths and weaknesses in comparison to the already familiar Q-learning. We will start with a simple PG method called REINFORCE and will try to apply it to our CartPole environment, comparing this with the Deep Q-Networks (DQN) approach.

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Deep Reinforcement Learning Hands-On
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