Book Image

Neural Networks with Keras Cookbook

By : V Kishore Ayyadevara
Book Image

Neural Networks with Keras Cookbook

By: V Kishore Ayyadevara

Overview of this book

This book will take you from the basics of neural networks to advanced implementations of architectures using a recipe-based approach. We will learn about how neural networks work and the impact of various hyper parameters on a network's accuracy along with leveraging neural networks for structured and unstructured data. Later, we will learn how to classify and detect objects in images. We will also learn to use transfer learning for multiple applications, including a self-driving car using Convolutional Neural Networks. We will generate images while leveraging GANs and also by performing image encoding. Additionally, we will perform text analysis using word vector based techniques. Later, we will use Recurrent Neural Networks and LSTM to implement chatbot and Machine Translation systems. Finally, you will learn about transcribing images, audio, and generating captions and also use Deep Q-learning to build an agent that plays Space Invaders game. By the end of this book, you will have developed the skills to choose and customize multiple neural network architectures for various deep learning problems you might encounter.
Table of Contents (18 chapters)

Building a deep neural network to improve network accuracy

Until now, we have looked at model architectures where the neural network has only one hidden layer between the input and the output layers. In this section, we will look at the neural network where there are multiple hidden layers (and hence a deep neural network), while reusing the same MNIST training and test dataset that were scaled.

Getting ready

A deep neural network means that there are multiple hidden layers connecting the input to the output layer. Multiple hidden layers ensure that the neural network learns a complex non-linear relation between the input and output, which a simple neural network cannot learn (due to a limited number of hidden layers).

A typical...