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Natural Language Processing Fundamentals

You're reading from   Natural Language Processing Fundamentals Build intelligent applications that can interpret the human language to deliver impactful results

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Product type Paperback
Published in Mar 2019
Publisher
ISBN-13 9781789954043
Length 374 pages
Edition 1st Edition
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Authors (2):
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Dwight Gunning Dwight Gunning
Author Profile Icon Dwight Gunning
Dwight Gunning
Sohom Ghosh Sohom Ghosh
Author Profile Icon Sohom Ghosh
Sohom Ghosh
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Toc

Table of Contents (10) Chapters Close

Preface 1. Introduction to Natural Language Processing FREE CHAPTER 2. Basic Feature Extraction Methods 3. Developing a Text classifier 4. Collecting Text Data from the Web 5. Topic Modeling 6. Text Summarization and Text Generation 7. Vector Representation 8. Sentiment Analysis Appendix

8. Sentiment Analysis

Activity 13: Tweet Sentiment Analysis Using the TextBlob library

Solution

Let's perform sentiment analysis on tweets related to airlines. Follow these steps to implement this activity:

  1. Open a Jupyter notebook.
  2. Insert a new cell and add the following code to import the necessary libraries:
    import pandas as pd
    from textblob import TextBlob
    import re
  3. Since we are displaying the text in the notebook, we want to increase the display width for our DataFrame. Insert a new cell and add the following code to implement this:
    pd.set_option('display.max_colwidth', 240)
  4. Now we load the Tweets.csv dataset. From this dataset, we are only fetching the "text" column. Thus, we need to mention the "text" column name as the value for the usecols parameter of the read_csv() function. The fetched column is later being replaced to a new column named "Tweet". Insert a new cell and add the following code to implement...
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