Python_Text_Processing_With_Nltk_2.0_Coo_Perkins_Jacob.pdf

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Python Text
Processing with
NLTK 2.0 Cookbook
Over 80 practical recipes for using Python's NLTK suite of
libraries to maximize your Natural Language Processing
capabilities.
Jacob Perkins
BIRMINGHAM - MUMBAI
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Python Text Processing with NLTK 2.0
Cookbook
Copyright © 2010 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system,
or transmitted in any form or by any means, without the prior written permission of the
publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the
information presented. However, the information contained in this book is sold without
warranty, either express or implied. Neither the author, nor Packt Publishing, and its
dealers and distributors will be held liable for any damages caused or alleged to be
caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the
companies and products mentioned in this book by the appropriate use of capitals.
However, Packt Publishing cannot guarantee the accuracy of this information.
First published: November 2010
Production Reference: 1031110
Published by Packt Publishing Ltd.
32 Lincoln Road
Olton
Birmingham, B27 6PA, UK.
ISBN 978-1-849513-60-9
www.packtpub.com
Cover Image by Sujay Gawand ( sujay0000@gmail.com )
Credits
Author
Jacob Perkins
Editorial Team Leader
Aditya Belpathak
Reviewers
Patrick Chan
Project Team Leader
Priya Mukherji
Herjend Teny
Project Coordinator
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Acquisition Editor
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Proofreader
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Development Editor
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Graphics
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Technical Editors
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Production Coordinator
Adline Swetha Jesuthas
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Copy Editor
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Cover Work
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Indexer
Tejal Daruwale
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About the Author
Jacob Perkins has been an avid user of open source software since high school, when
he irst built his own computer and didn't want to pay for Windows. At one point he had
ive operating systems installed, including Red Hat Linux, OpenBSD, and BeOS.
While at Washington University in St. Louis, Jacob took classes in Spanish and poetry
writing, and worked on an independent study project that eventually became his Master's
project: WUGLE—a GUI for manipulating logical expressions. In his free time, he wrote
the Gnome2 version of Seahorse (a GUI for encryption and key management), which has
since been translated into over a dozen languages and is included in the default Gnome
distribution.
After receiving his MS in Computer Science, Jacob tried to start a web development
studio with some friends, but since no one knew anything about web development,
it didn't work out as planned. Once he'd actually learned about web development, he
went off and co-founded another company called Weotta, which sparked his interest in
Machine Learning and Natural Language Processing.
Jacob is currently the CTO/Chief Hacker for Weotta and blogs about what he's learned
along the way at http://streamhacker.com/ . He is also applying this knowledge to
produce text processing APIs and demos at http://text-processing.com/ . This book
is a synthesis of his knowledge on processing text using Python, NLTK, and more.
Thanks to my parents for all their support, even when they don't understand
what I'm doing; Grant for sparking my interest in Natural Language
Processing; Les for inspiring me to program when I had no desire to; Arnie
for all the algorithm discussions; and the whole Wernick family for feeding
me such good food whenever I come over.
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