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Data Exploration and Preparation with BigQuery

You're reading from   Data Exploration and Preparation with BigQuery A practical guide to cleaning, transforming, and analyzing data for business insights

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Product type Paperback
Published in Nov 2023
Publisher Packt
ISBN-13 9781805125266
Length 264 pages
Edition 1st Edition
Languages
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Author (1):
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Mike Kahn Mike Kahn
Author Profile Icon Mike Kahn
Mike Kahn
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Table of Contents (21) Chapters Close

Preface 1. Part 1: Introduction to BigQuery FREE CHAPTER
2. Chapter 1: Introducing BigQuery and Its Components 3. Chapter 2: BigQuery Organization and Design 4. Part 2: Data Exploration with BigQuery
5. Chapter 3: Exploring Data in BigQuery 6. Chapter 4: Loading and Transforming Data 7. Chapter 5: Querying BigQuery Data 8. Chapter 6: Exploring Data with Notebooks 9. Chapter 7: Further Exploring and Visualizing Data 10. Part 3: Data Preparation with BigQuery
11. Chapter 8: An Overview of Data Preparation Tools 12. Chapter 9: Cleansing and Transforming Data 13. Chapter 10: Best Practices for Data Preparation, Optimization, and Cost Control 14. Part 4: Hands-On and Conclusion
15. Chapter 11: Hands-On Exercise – Analyzing Advertising Data 16. Chapter 12: Hands-On Exercise – Analyzing Transportation Data 17. Chapter 13: Hands-On Exercise – Analyzing Customer Support Data 18. Chapter 14: Summary and Future Directions 19. Index 20. Other Books You May Enjoy

Analyzing emotions with sentiment analysis

In this section, we will use the ML.UNDERSTAND.TEXT function [2] and a remote model to perform natural language text analysis on our customer support data. Sentiment analysis attempts to determine positive or negative attitudes expressed within text. Sentiment is represented by numerical magnitude and score values. These functions are delivered by BigQuery ML (BQML) and make it possible to analyze text in BigQuery tables, SQL, and Google’s Large Language Models (LLMs).

We will analyze the STRING column instruction in the bitextcustomersupport table to determine the feelings and attitudes of our customers.

Creating a connection

Enable the BigQuery Connection API by searching for this API in the console or visiting https://console.cloud.google.com/marketplace/product/google/bigqueryconnection.googleapis.com and also visit the BigQuery console https://console.cloud.google.com/bigquery. Next, let’s get started with the steps...

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