8.1 The basics of machine learning
Before discussing quantum machine learning, it may be a good idea to review some basic notions of Machine Learning (ML), in general. If you are familiar with the subject, feel free to skip this section. Please, keep in mind that the world of machine learning is extraordinarily vast; so much so that sometimes it is difficult to make general statements that can do justice to the overwhelming diversity of this field. For this reason, we will highlight those elements that will be more relevant for our purposes, while other aspects of machine learning — which are also of significant importance on their own — will be barely covered.
In addition to this, please keep in mind that this will be a very condensed and hands-on introduction to machine learning. If you’d like to dive deeper into this field, we can recommend some very good books, such as the one by Abu-Mostafa, Magdon-Ismail, and Lin [1], or the one by Aurélien Géron...
