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Mastering Reinforcement Learning with Python

You're reading from   Mastering Reinforcement Learning with Python Build next-generation, self-learning models using reinforcement learning techniques and best practices

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Product type Paperback
Published in Dec 2020
Publisher Packt
ISBN-13 9781838644147
Length 544 pages
Edition 1st Edition
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Author (1):
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Enes Bilgin Enes Bilgin
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Enes Bilgin
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Table of Contents (24) Chapters Close

Preface 1. Section 1: Reinforcement Learning Foundations
2. Chapter 1: Introduction to Reinforcement Learning FREE CHAPTER 3. Chapter 2: Multi-Armed Bandits 4. Chapter 3: Contextual Bandits 5. Chapter 4: Makings of a Markov Decision Process 6. Chapter 5: Solving the Reinforcement Learning Problem 7. Section 2: Deep Reinforcement Learning
8. Chapter 6: Deep Q-Learning at Scale 9. Chapter 7: Policy-Based Methods 10. Chapter 8: Model-Based Methods 11. Chapter 9: Multi-Agent Reinforcement Learning 12. Section 3: Advanced Topics in RL
13. Chapter 10: Introducing Machine Teaching 14. Chapter 11: Achieving Generalization and Overcoming Partial Observability 15. Chapter 12: Meta-Reinforcement Learning 16. Chapter 13: Exploring Advanced Topics 17. Section 4: Applications of RL
18. Chapter 14: Solving Robot Learning 19. Chapter 15: Supply Chain Management 20. Chapter 16: Personalization, Marketing, and Finance 21. Chapter 17: Smart City and Cybersecurity 22. Chapter 18: Challenges and Future Directions in Reinforcement Learning 23. Other Books You May Enjoy

Introducing model-based methods

Imagine a scene in which you are traveling in a car on an undivided road and you face the following situation. Suddenly, another car in the opposing direction approaches you fast in your lane as it is passing a truck. Chances are your mind automatically simulates different scenarios about how the next scenes might unfold:

  • The other car might go back to its lane right away or drive even faster to pass the truck as soon as possible.
  • Another scenario could be the car steering toward your right, but this is an unlikely scenario (in a right-hand traffic flow).

The driver (possibly you) then evaluates the likelihood and risk of each scenario, together with their possible actions too, and makes the decision to safely continue the journey.

In a less sensational example, consider a game of chess. Before making a move, a player "simulates" many scenarios in their head and assesses the possible outcomes of several moves down...

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