Book Image

Deep Reinforcement Learning Hands-On

By : Maxim Lapan
Book Image

Deep Reinforcement Learning Hands-On

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 (23 chapters)
Deep Reinforcement Learning Hands-On
Contributors
Preface
Other Books You May Enjoy
Index

Summary


In this chapter, we saw two examples of black-box optimization methods: evolution strategies and genetic algorithms, which make less assumptions about the reward system, but nevertheless can provide competition for other analytical gradient methods. Their strength lies in good parallelization on a large amount of resources and the smaller amount of assumptions that they have on the reward function.

In the next chapter, we'll take a look at a different sphere of modern RL development: model-based methods.