Book Image

Natural Language Processing with TensorFlow

By : Motaz Saad, Thushan Ganegedara
Book Image

Natural Language Processing with TensorFlow

By: Motaz Saad, Thushan Ganegedara

Overview of this book

Natural language processing (NLP) supplies the majority of data available to deep learning applications, while TensorFlow is the most important deep learning framework currently available. Natural Language Processing with TensorFlow brings TensorFlow and NLP together to give you invaluable tools to work with the immense volume of unstructured data in today’s data streams, and apply these tools to specific NLP tasks. Thushan Ganegedara starts by giving you a grounding in NLP and TensorFlow basics. You'll then learn how to use Word2vec, including advanced extensions, to create word embeddings that turn sequences of words into vectors accessible to deep learning algorithms. Chapters on classical deep learning algorithms, like convolutional neural networks (CNN) and recurrent neural networks (RNN), demonstrate important NLP tasks as sentence classification and language generation. You will learn how to apply high-performance RNN models, like long short-term memory (LSTM) cells, to NLP tasks. You will also explore neural machine translation and implement a neural machine translator. After reading this book, you will gain an understanding of NLP and you'll have the skills to apply TensorFlow in deep learning NLP applications, and how to perform specific NLP tasks.
Table of Contents (16 chapters)
Natural Language Processing with TensorFlow
Contributors
Preface
Index

Word2vec – a neural network-based approach to learning word representation


"You shall know a word by the company it keeps."

J.R. Firth

This statement, uttered by J.R. Firth in 1957, lies at the very foundation of Word2vec, as Word2vec techniques use the context of a given word to learn its semantics. Word2vec is a groundbreaking approach that allows to learn the meaning of words without any human intervention. Also, Word2vec learns numerical representations of words by looking at the words surrounding a given word.

We can test the correctness of the preceding quote by imagining a real-world scenario. Imagine you are sitting for an exam and you find this sentence in your first question: "Mary is a very stubborn child. Her pervicacious nature always gets her in trouble." Now, unless you are very clever, you might not know what pervicacious means. In such a situation, you automatically...