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

Inspecting what a network has learned

A particularly interesting research effort is being devoted to understand what neural networks are actually learning in order to be able to recognize images so well. This is called neural network “interpretability.” Activation atlases is a promising recent technique that aims to show the feature visualizations of averaged activation functions. In this way, activation atlases produce a global map seen through the eyes of the network. Let’s look at a demo available at https://distill.pub/2019/activation-atlas/:

Figure 20.13: Examples of inspections

In this image, an InceptionV1 network used for vision classification reveals many fully realized features, such as electronics, screens, a Polaroid camera, buildings, food, animal ears, plants, and watery backgrounds. Note that grid cells are labeled with the classification they give the most support for. Grid cells are also sized according to the number of activations...