Book Image

A Practical Guide to Quantum Machine Learning and Quantum Optimization

By : Elías F. Combarro, Samuel González-Castillo
4.5 (2)
Book Image

A Practical Guide to Quantum Machine Learning and Quantum Optimization

4.5 (2)
By: Elías F. Combarro, Samuel González-Castillo

Overview of this book

This book provides deep coverage of modern quantum algorithms that can be used to solve real-world problems. You’ll be introduced to quantum computing using a hands-on approach with minimal prerequisites. You’ll discover many algorithms, tools, and methods to model optimization problems with the QUBO and Ising formalisms, and you will find out how to solve optimization problems with quantum annealing, QAOA, Grover Adaptive Search (GAS), and VQE. This book also shows you how to train quantum machine learning models, such as quantum support vector machines, quantum neural networks, and quantum generative adversarial networks. The book takes a straightforward path to help you learn about quantum algorithms, illustrating them with code that’s ready to be run on quantum simulators and actual quantum computers. You’ll also learn how to utilize programming frameworks such as IBM’s Qiskit, Xanadu’s PennyLane, and D-Wave’s Leap. Through reading this book, you will not only build a solid foundation of the fundamentals of quantum computing, but you will also become familiar with a wide variety of modern quantum algorithms. Moreover, this book will give you the programming skills that will enable you to start applying quantum methods to solve practical problems right away.
Table of Contents (27 chapters)
1
Part I: I, for One, Welcome our New Quantum Overlords
4
Part II: When Time is Gold: Tools for Quantum Optimization
10
Part III: A Match Made in Heaven: Quantum Machine Learning
16
Part IV: Afterword and Appendices
17
Chapter 13: Afterword: The Future of Quantum Computing
19
Bibliography
20
Index
Appendix A: Complex Numbers
Appendix E: Production Notes

Summary

This has been a long and intense chapter. We began by learning what hybrid neural networks actually are and in which use cases they can be useful. We then explored how to implement and train these hybrid networks in PennyLane and, along the way, we discussed a few good practices that apply to any machine learning project. In addition, we left our comfort zone and considered a new kind of QML problem: the training of multi-class classifiers.

Once we finished our study of PennyLane, we dived into Qiskit, and a big surprise was waiting for us there. Since Qiskit relied on an interface with the PyTorch ML package for the implementation of hybrid QNNs, we invested a good deal of effort in learning how to use PyTorch. In the process, we saw how PyTorch provided us with a level of flexibility that we simply couldn’t get using TensorFlow and Keras. At the point where we had a solid understanding of the PyTorch package, we got to work with Qiskit and its PyTorch connector and we...