This book offers a highly accessible introduction to Natural Language Processing, the field that underpins a variety of language technologies, ranging from predictive text and email filtering to automatic summarization and translation. With Natural Language Processing with Python, you'll learn how to write Python programs to work with large collections of unstructured text. You'll access richly-annotated datasets using a comprehensive range of linguistic data structures. And you'll understand the main algorithms for analyzing the content and structure of written communication.

Packed with examples and exercises, Natural Language Processing with Python will help you:

Extract information from unstructured text, to guess the topic or identify named entities Analyze linguistic structure in text, including parsing and semantic analysis Access popular linguistic databases, including WordNet and treebanks Integrate techniques drawn from fields as diverse as linguistics and artificial intelligence

Perfect for individual study, or as a classroom and workshop textbook, this book will help you gain practical skills in Natural Language Processing using the Python programming language and the Natural Language Toolkit (NLTK) open source library.

If you're interested in developing Web applications, analyzing multilingual news sources, documenting endangered languages, or if you are simply curious to have a programmer's perspective on how human language works, you will find Natural Language Processing with Python both fascinating and immensely useful.

This book offers a complete introduction to natural language processing, the key technology used in Web search engines, predictive text, and more.

This book offers a complete introduction to the key technology used in web search engines, predictive text, and more. Natural Language Processing is the computer manipulation of human language, a technology that interests a wide range of people, from programmers to academics. With this book, you'll not only learn how concepts from Natural Language Processing and linguistics are used to describe and analyze language, you'll also learn how to write simple programs to manipulate and analyze language data using the Python programming language — whether or not you already know how to program. Natural Language Processing with Python introduces the Natural Language Toolkit (NLTK) open source library, and contains hundreds of fully-worked examples and exercises for using it. Perfect for individual study or as a textbook on Natural Language Processing or computational linguistics, this book also teaches the basics of Python in a way that's understandable for beginners as well as experienced programmers new to the language.