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Natural Language Processing and Computational Linguistics

You're reading from   Natural Language Processing and Computational Linguistics A practical guide to text analysis with Python, Gensim, spaCy, and Keras

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Product type Paperback
Published in Jun 2018
Publisher Packt
ISBN-13 9781788838535
Length 306 pages
Edition 1st Edition
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Author (1):
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Bhargav Srinivasa-Desikan Bhargav Srinivasa-Desikan
Author Profile Icon Bhargav Srinivasa-Desikan
Bhargav Srinivasa-Desikan
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Table of Contents (17) Chapters Close

Preface 1. What is Text Analysis? FREE CHAPTER 2. Python Tips for Text Analysis 3. spaCy's Language Models 4. Gensim – Vectorizing Text and Transformations and n-grams 5. POS-Tagging and Its Applications 6. NER-Tagging and Its Applications 7. Dependency Parsing 8. Topic Models 9. Advanced Topic Modeling 10. Clustering and Classifying Text 11. Similarity Queries and Summarization 12. Word2Vec, Doc2Vec, and Gensim 13. Deep Learning for Text 14. Keras and spaCy for Deep Learning 15. Sentiment Analysis and ChatBots 16. Other Books You May Enjoy

Introducing Gensim

So far, we haven't spoken much about finding hidden information - more about how to get our textual data in shape. We will be taking a brief departure from spaCy to discuss vector spaces and the open source Python package Gensim - this is because some of these concepts will be useful in the upcoming chapters and we would like to lay the foundation before moving on. However, we'll only be touching the surface of Gensim's capabilities. This chapter will introduce you to the data structures largely used in text analysis involving machine learning techniques - vectors [1].

This means that we are still in the domain of preprocessing and getting our data ready for further machine learning analysis. It may seem like overkill, focusing so much on just setting up our text/data, but like we've said before - garbage in, garbage out. While the previous...

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