By Steven Bird, Ewan Klein, Edward LoperPublished by O'Reilly Media (http://oreilly.com/catalog/9780596516499/)This book offers a highly accessible introduction to natural language processing, the field that supports a variety of language technologies, from predictive text and email filtering to automatic summarization and translation. With it, you'll learn how to write Python programs that 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, either 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 intelligenceThis 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, or documenting endangered languages -- or if you're simply curious to have a programmer's perspective on how human language works -- you'll find Natural Language Processing with Python both fascinating and immensely useful.Superb Reading FeaturesThrough a partnership between O'Reilly Media and Lexcycle, this app includes the same features that have made Stanza an iPhone phenomenon with over a million downloads:* Full book text search* Several fonts and themes to choose from* Built-in dictionary* The ability to add annotations* Landscape view* Extensive cross-referencing and working hyperlinks* Zoom function for images and screenshotsAbout O'Reilly MediaO'Reilly Media spreads the knowledge of innovators through its books, online services, magazines, research, and conferences. Whether it's delivered in print, online, or in person, everything O'Reilly produces reflects the company's unshakeable belief in the power of information to spur innovation. Learn more about Ebooks from O'Reilly at oreilly.com/ebooks.About LexcycleLexcycle is the creator of Stanza Bookbinder which was used to create this standalone book application. Stanza Bookbinder is based on the popular iPhone Ebook reading application, Stanza. For more information about Stanza, visit www.lexcycle.com.