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Practical Data Analysis Using Jupyter Notebook

You're reading from   Practical Data Analysis Using Jupyter Notebook Learn how to speak the language of data by extracting useful and actionable insights using Python

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Product type Paperback
Published in Jun 2020
Publisher Packt
ISBN-13 9781838826031
Length 322 pages
Edition 1st Edition
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Author (1):
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Marc Wintjen Marc Wintjen
Author Profile Icon Marc Wintjen
Marc Wintjen
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Table of Contents (18) Chapters Close

Preface 1. Section 1: Data Analysis Essentials
2. Fundamentals of Data Analysis FREE CHAPTER 3. Overview of Python and Installing Jupyter Notebook 4. Getting Started with NumPy 5. Creating Your First pandas DataFrame 6. Gathering and Loading Data in Python 7. Section 2: Solutions for Data Discovery
8. Visualizing and Working with Time Series Data 9. Exploring, Cleaning, Refining, and Blending Datasets 10. Understanding Joins, Relationships, and Aggregates 11. Plotting, Visualization, and Storytelling 12. Section 3: Working with Unstructured Big Data
13. Exploring Text Data and Unstructured Data 14. Practical Sentiment Analysis 15. Bringing It All Together 16. Works Cited
17. Other Books You May Enjoy

Normalizing text techniques

In most cases, making the regex rules smarter by adding new code logic or libraries will be required. One such way to do this is by using the concepts behind normalizing your text called stemming and lemmatization. Both terms are rooted in the study of linguistics, and how they are adopted to be used in technology has exploded due to integrating NLP solutions into everything, from customer service to speech-to-text features.

When applied to NLP, stemming is when any word is programmatically identified to its common root form. In this process, any suffix, plural form, or synonym that exists for the word is identified. Stemmers require a reference dictionary or lookup to be accurate, so the source language is required. Lemmatization takes into account all of the variations of a word so it can be rooted back to a dictionary source. From my research, both stemming and lemmatization are used together in NLP and you can start by using the open source...

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