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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

Data pipelines

Even with the most basic of analytics, we always require some data. In fact, finding the right data is probably among the hardest problems to solve in data science (but that's a whole topic for another book!). We have already seen in the last chapter that the way in which we obtain our data can be as simple or complicated as is needed. In practice, we can break this decision down into two distinct areas: ad hoc and scheduled.

  • Ad hoc data acquisition: is the most common method during prototyping and small scale analytics as it usually doesn't require any additional software to implement. The user acquires some data and simply downloads it from source as and when required. This method is often a matter of clicking on a web link and storing the data somewhere convenient, although the data may still need to be versioned and secure.
  • Scheduled data acquisition: is used in more controlled environments for large scale and production analytics; there is also an excellent...
You have been reading a chapter from
Mastering Spark for Data Science
Published in: Mar 2017
Publisher: Packt
ISBN-13: 9781785882142
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