Book Image

TensorFlow 1.x Deep Learning Cookbook

Book Image

TensorFlow 1.x Deep Learning Cookbook

Overview of this book

Deep neural networks (DNNs) have achieved a lot of success in the field of computer vision, speech recognition, and natural language processing. This exciting recipe-based guide will take you from the realm of DNN theory to implementing them practically to solve real-life problems in the artificial intelligence domain. In this book, you will learn how to efficiently use TensorFlow, Google’s open source framework for deep learning. You will implement different deep learning networks, such as Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), Deep Q-learning Networks (DQNs), and Generative Adversarial Networks (GANs), with easy-to-follow standalone recipes. You will learn how to use TensorFlow with Keras as the backend. You will learn how different DNNs perform on some popularly used datasets, such as MNIST, CIFAR-10, and Youtube8m. You will not only learn about the different mobile and embedded platforms supported by TensorFlow, but also how to set up cloud platforms for deep learning applications. You will also get a sneak peek at TPU architecture and how it will affect the future of DNNs. By using crisp, no-nonsense recipes, you will become an expert in implementing deep learning techniques in growing real-world applications and research areas such as reinforcement learning, GANs, and autoencoders.
Table of Contents (15 chapters)
14
TensorFlow Processing Units

Inspecting what filters a VGG pre-built network has learned

In this recipe, we will use keras-vis (https://raghakot.github.io/keras-vis/), an external Keras package for visually inspecting what a pre-built VGG16 network has learned in different filters. The idea is to pick a specific ImageNet category and understand 'how' the VGG16 network has learned to represent it.

Getting ready

The first step is to select a specific category used for training the VGG16 on ImageNet. Let's say that we take the category 20, which corresponds to the American Dipper bird shown in the following picture:

An example of American Dipper as seen on https://commons.wikimedia.org/wiki/File:American_Dipper.jpg

ImageNet mapping can be...