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Mastering Spark for Data Science

You're reading from  Mastering Spark for Data Science

Product type Book
Published in Mar 2017
Publisher Packt
ISBN-13 9781785882142
Pages 560 pages
Edition 1st Edition
Languages
Authors (4):
Andrew Morgan Andrew Morgan
Profile icon Andrew Morgan
Antoine Amend Antoine Amend
Profile icon Antoine Amend
Matthew Hallett Matthew Hallett
Profile icon Matthew Hallett
David George David George
Profile icon David George
View More author details

Table of Contents (22) Chapters

Mastering Spark for Data Science
Credits
Foreword
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. The Big Data Science Ecosystem 2. Data Acquisition 3. Input Formats and Schema 4. Exploratory Data Analysis 5. Spark for Geographic Analysis 6. Scraping Link-Based External Data 7. Building Communities 8. Building a Recommendation System 9. News Dictionary and Real-Time Tagging System 10. Story De-duplication and Mutation 11. Anomaly Detection on Sentiment Analysis 12. TrendCalculus 13. Secure Data 14. Scalable Algorithms

Chapter 6. Scraping Link-Based External Data

This chapter aims to explain a common pattern for enhancing local data with external content found at URLs or over APIs. Examples of this are when URLs are received from GDELT or Twitter. We offer readers a tutorial using the GDELT news index service as a source of news URLs, demonstrating how to build a web scale news scanner that scrapes global breaking news of interest from the Internet. We explain how to build this specialist web scraping component in a way that overcomes the challenges of scale. In many use cases, accessing the raw HTML content is not sufficient enough to provide deeper insights into emerging global events. An expert data scientist must be able to extract entities out of that raw text content to help build the context needed track broader trends.

In this chapter, we will cover the following topics:

  • Create a scalable web content fetcher using the Goose library

  • Leverage the Spark framework for Natural Language Processing (NLP...

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