Book Image

Deep Learning with TensorFlow and Keras – 3rd edition - Third Edition

By : Amita Kapoor, Antonio Gulli, Sujit Pal
5 (2)
Book Image

Deep Learning with TensorFlow and Keras – 3rd edition - Third Edition

5 (2)
By: Amita Kapoor, Antonio Gulli, Sujit Pal

Overview of this book

Deep Learning with TensorFlow and Keras teaches you neural networks and deep learning techniques using TensorFlow (TF) and Keras. You'll learn how to write deep learning applications in the most powerful, popular, and scalable machine learning stack available. TensorFlow 2.x focuses on simplicity and ease of use, with updates like eager execution, intuitive higher-level APIs based on Keras, and flexible model building on any platform. This book uses the latest TF 2.0 features and libraries to present an overview of supervised and unsupervised machine learning models and provides a comprehensive analysis of deep learning and reinforcement learning models using practical examples for the cloud, mobile, and large production environments. This book also shows you how to create neural networks with TensorFlow, runs through popular algorithms (regression, convolutional neural networks (CNNs), transformers, generative adversarial networks (GANs), recurrent neural networks (RNNs), natural language processing (NLP), and graph neural networks (GNNs)), covers working example apps, and then dives into TF in production, TF mobile, and TensorFlow with AutoML.
Table of Contents (23 chapters)
21
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22
Index

Self-Supervised Learning

Imagine that you are in the middle of the ocean, and you are thirsty. There is water all around you, but you cannot drink any of it. But what if you had the resources to boil the salt out of the water and thereby make it drinkable? Of course, the energy costs associated with the process can be quite high, so you will likely use the process in moderation. However, if your energy costs effectively became free, for example, if you were harnessing the power of the sun, the process might be more attractive for you to do on a larger scale.

In our somewhat simplistic situation described above, the first scenario is roughly analogous to supervised learning, and the second to the class of unsupervised / semi-supervised learning techniques we will cover in this chapter. The biggest problem with supervised learning techniques is the time and expense associated with the collection of labeled training data. As a result, labeled datasets are often relatively small.

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