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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Index

Neural embeddings – not just for words

Word embedding technology has evolved in various ways since Word2Vec and GloVe. One such direction is the application of word embeddings to non-word settings, also known as neural embeddings. As you will recall, word embeddings leverage the distributional hypothesis that words occurring in similar contexts tend to have similar meanings, where context is usually a fixed-size (in number of words) window around the target word.

The idea of neural embeddings is very similar; that is, entities that occur in similar contexts tend to be strongly related to each other. The way in which these contexts are constructed is usually situation-dependent. We will describe two techniques here that are foundational and general enough to be applied easily to a variety of use cases.

Item2Vec

The Item2Vec embedding model was originally proposed by Barkan and Koenigstein [14] for the collaborative filtering use case, that is, recommending items...