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)

Handwritten-text recognition

In this case study, we will be working toward transcribing the handwritten images so that we extract the text that is present in the pictures.

A sample of the handwriting looks as follows:


Note that in the preceding diagram, the handwritten characters have varied length, the images are of different dimensions, the separation between the characters is varied, and the images are of different quality.

In this section, we will be learning about using CNN, RNN, and the CTC loss function together to transcribe the handwritten examples.

Getting ready

The strategy we will adopt to transcribe the handwritten examples is as follows:

  • Download images that contain images of handwritten text:
    • Multiple datasets...