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Hands-On Neuroevolution with Python

You're reading from   Hands-On Neuroevolution with Python Build high-performing artificial neural network architectures using neuroevolution-based algorithms

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Product type Paperback
Published in Dec 2019
Publisher Packt
ISBN-13 9781838824914
Length 368 pages
Edition 1st Edition
Languages
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Author (1):
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Iaroslav Omelianenko Iaroslav Omelianenko
Author Profile Icon Iaroslav Omelianenko
Iaroslav Omelianenko
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Table of Contents (18) Chapters Close

Preface 1. Section 1: Fundamentals of Evolutionary Computation Algorithms and Neuroevolution Methods FREE CHAPTER
2. Overview of Neuroevolution Methods 3. Python Libraries and Environment Setup 4. Section 2: Applying Neuroevolution Methods to Solve Classic Computer Science Problems
5. Using NEAT for XOR Solver Optimization 6. Pole-Balancing Experiments 7. Autonomous Maze Navigation 8. Novelty Search Optimization Method 9. Section 3: Advanced Neuroevolution Methods
10. Hypercube-Based NEAT for Visual Discrimination 11. ES-HyperNEAT and the Retina Problem 12. Co-Evolution and the SAFE Method 13. Deep Neuroevolution 14. Section 4: Discussion and Concluding Remarks
15. Best Practices, Tips, and Tricks 16. Concluding Remarks 17. Other Books You May Enjoy

Summary

In this chapter, you have learned about a class of planning and control problems that use goal-oriented fitness functions that have a deceptive definition landscape. In this landscape, there are multiple traps created by the local optima areas of the fitness function that mislead the solution search process, which is based only on the fitness score calculated as a derivative of the distance from the agent to the goal. You have learned that the conventional goal-oriented fitness function can help the search process to create a successful maze navigator agent for a simple maze configuration, but failed with a more complex maze due to the local optima traps.

We presented a useful visualization method that allowed us to visualize the final positions of all evaluated agents on the maze map. With this visualization, you can make assumptions about the performance of the evolutionary...

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