Deep Reinforcement Learning Hands-On - Third Edition: A practical and easy-to-follow guide to RL from Q-learning and DQNs to PPO and RLHF (Paperback or Softback)

Maxim Lapan delivers intuitive explanations and insights into complex reinforcement learning (RL) concepts, starting from the basics of RL on simple environments and tasks to modern, state-of-the-art methods

Purchase of the print or Kindle book includes a free PDF eBook

Free with your book: DRM-free PDF version + access to Packt's next-gen Reader*

Key Features

• Learn with concise explanations, modern libraries, and diverse applications from games to stock trading and web navigation
• Develop deep RL models, improve their stability, and efficiently solve complex environments
• New content on RL from human feedback (RLHF), MuZero, and transformers

Book Description

Start your journey into reinforcement learning (RL) and reward yourself with the third edition of Deep Reinforcement Learning Hands-On. This book takes you through the basics of RL to more advanced concepts with the help of various applications, including game playing, discrete optimization, stock trading, and web browser navigation. By walking you through landmark research papers in the field, this deep RL book will equip you with practical knowledge of RL and the theoretical foundation to understand and implement most modern RL papers.

The book retains its approach of providing concise and easy-to-follow explanations from the previous editions. You'll work through practical and diverse examples, from grid environments and games to stock trading and RL agents in web environments, to give you a well-rounded understanding of RL, its capabilities, and its use cases. You'll learn about key topics, such as deep Q-networks (DQNs), policy gradient methods, continuous control problems, and highly scalable, non-gradient methods.

If you want to learn about RL through a practical approach using OpenAI Gym and PyTorch, concise explanations, and the incremental development of topics, then Deep Reinforcement Learning Hands-On, Third Edition, is your ideal companion

*Email sign-up and proof of purchase required

What you will learn

• Stay on the cutting edge with new content on MuZero, RL with human feedback, and LLMs
• Evaluate RL methods, including cross-entropy, DQN, actor-critic, TRPO, PPO, DDPG, and D4PG
• Implement RL algorithms using PyTorch and modern RL libraries
• Build and train deep Q-networks to solve complex tasks in Atari environments
• Speed up RL models using algorithmic and engineering approaches
• Leverage advanced techniques like proximal policy optimization (PPO) for more stable training

Who this book is for

This book is ideal for machine learning engineers, software engineers, and data scientists looking to learn and apply deep reinforcement learning in practice. It assumes familiarity with Python, calculus, and machine learning concepts. With practical examples and high-level overviews, it’s also suitable for experienced professionals looking to deepen their understanding of advanced deep RL methods and apply them across industries, such as gaming and finance

Table of Contents

1. What Is Reinforcement Learning?
2. OpenAI Gym API and Gymnasium
3. Deep Learning with PyTorch
4. The Cross-Entropy Method
5. Tabular Learning and the Bellman Equation
6. Deep Q-Networks
7. Higher-Level RL Libraries
8. DQN Extensions
9. Ways to Speed Up RL
10. Stocks Trading Using RL
11. Policy Gradients
12. Actor-Critic Methods - A2C and A3C
13. The TextWorld Environment
14. Web Navigation
15. Continuous Action Space
16. Trust Region Methods
17. Black-Box Optimizations in RL
18. Advanced Exploration

(N.B. Please use the Read Sample option to see further chapters)

Maxim has been working as a software developer for more than 20 years and was involved in various areas: distributed scientific computing, distributed systems and big data processing. Since 2014 he is actively using machine and deep learning to solve practical industrial tasks, such as NLP problems, RL for web crawling and web pages analysis. He has been living in Germany with his family.