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Mastering Spark for Data Science

You're reading from   Mastering Spark for Data Science Lightning fast and scalable data science solutions

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781785882142
Length 560 pages
Edition 1st Edition
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Authors (5):
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David George David George
Author Profile Icon David George
David George
Matthew Hallett Matthew Hallett
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Matthew Hallett
Antoine Amend Antoine Amend
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Antoine Amend
Andrew Morgan Andrew Morgan
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Andrew Morgan
Albert Bifet Albert Bifet
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Albert Bifet
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Table of Contents (15) Chapters Close

Preface 1. The Big Data Science Ecosystem 2. Data Acquisition FREE CHAPTER 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

Formulating a plan of action


Having inspected the GDELT schemas, we now need to make some decisions around what data we are going to use, and make sure we justify that usage based on our hypotheses. This is a critical stage as there are many areas to consider, and at the very least we need to:

  • Ensure that our hypotheses are clear so that we have a known starting point

  • Ensure that we are clear about how we are going to implement the hypotheses, and determine an action plan

  • Ensure that we use enough appropriate data to meet our action plan; scope the data usage to ensure we can produce a conclusion within a given time frame, for example, using all GDELT data would be great, but is probably not reasonable unless a large processing cluster is available. On the other hand using one day is clearly not enough to gauge any patterns over time

  • Formulate a plan B in case our initial results are not conclusive

Our second hypothesis is about the detail of the events; for the purposes of clarity, in this chapter...

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