Book Image

Deep Learning with TensorFlow

By : Giancarlo Zaccone, Md. Rezaul Karim, Ahmed Menshawy
Book Image

Deep Learning with TensorFlow

By: Giancarlo Zaccone, Md. Rezaul Karim, Ahmed Menshawy

Overview of this book

Deep learning is the step that comes after machine learning, and has more advanced implementations. Machine learning is not just for academics anymore, but is becoming a mainstream practice through wide adoption, and deep learning has taken the front seat. As a data scientist, if you want to explore data abstraction layers, this book will be your guide. This book shows how this can be exploited in the real world with complex raw data using TensorFlow 1.x. Throughout the book, you’ll learn how to implement deep learning algorithms for machine learning systems and integrate them into your product offerings, including search, image recognition, and language processing. Additionally, you’ll learn how to analyze and improve the performance of deep learning models. This can be done by comparing algorithms against benchmarks, along with machine intelligence, to learn from the information and determine ideal behaviors within a specific context. After finishing the book, you will be familiar with machine learning techniques, in particular the use of TensorFlow for deep learning, and will be ready to apply your knowledge to research or commercial projects.
Table of Contents (11 chapters)

Sentiment classification of movie reviews

Sentiment analysis is the capability to decipher the opinions contained in a written or spoken text. The main purpose of this technique is to identify the sentiment (or polarity) of a lexical expression, which may have a neutral, positive, or negative connotation.

The problem we want to resolve is the IMDB movie review sentiment classification problem. Each movie review is a variable sequence of words, and the sentiment (positive or negative) of each movie review must be classified.

This problem is very complex, because the sequences can vary in length; they can also be part of a large vocabulary of input symbols.

The solution requires the model to learn long-term dependencies between symbols in the input sequence.

The IMDB dataset contains 25,000 highly polarized movie reviews (good or bad) for training and the same amount again for testing. The data was collected by Stanford...