Book Image

Keras Deep Learning Cookbook

By : Rajdeep Dua, Sujit Pal, Manpreet Singh Ghotra
Book Image

Keras Deep Learning Cookbook

By: Rajdeep Dua, Sujit Pal, Manpreet Singh Ghotra

Overview of this book

Keras has quickly emerged as a popular deep learning library. Written in Python, it allows you to train convolutional as well as recurrent neural networks with speed and accuracy. The Keras Deep Learning Cookbook shows you how to tackle different problems encountered while training efficient deep learning models, with the help of the popular Keras library. Starting with installing and setting up Keras, the book demonstrates how you can perform deep learning with Keras in the TensorFlow. From loading data to fitting and evaluating your model for optimal performance, you will work through a step-by-step process to tackle every possible problem faced while training deep models. You will implement convolutional and recurrent neural networks, adversarial networks, and more with the help of this handy guide. In addition to this, you will learn how to train these models for real-world image and language processing tasks. By the end of this book, you will have a practical, hands-on understanding of how you can leverage the power of Python and Keras to perform effective deep learning
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Packt Upsell

Sentiment analysis

As technology is increasing the abilities of businesses, sentiment analysis is becoming a more commonly utilized tool for various use cases. Businesses use sentiment analysis to give their users insights into how the customer feels regarding their business, products, and topics of interest.

Sentiment analysis is basically a method of computationally identifying and categorizing sentiments expressed in a piece of text or corpus in order to determine whether the composer's attitude towards a particular topic, product, and so on is positive, negative, or neutral. Sentiment analysis algorithms use NLP to classify documents as positive, neutral, or negative.

In this recipe, you will learn how to develop deep learning models for sentiment analysis, including:

  • How to preprocess and load a dataset in Keras
  • How to use word embeddings
  • How to develop a large neural network model for sentiment analysis

Getting ready

Let's load the dataset and calculate some of its properties. We will start...