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Learning PySpark

You're reading from   Learning PySpark Build data-intensive applications locally and deploy at scale using the combined powers of Python and Spark 2.0

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781786463708
Length 274 pages
Edition 1st Edition
Languages
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Authors (2):
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Denny Lee Denny Lee
Author Profile Icon Denny Lee
Denny Lee
Tomasz Drabas Tomasz Drabas
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Tomasz Drabas
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Toc

Table of Contents (13) Chapters Close

Preface 1. Understanding Spark FREE CHAPTER 2. Resilient Distributed Datasets 3. DataFrames 4. Prepare Data for Modeling 5. Introducing MLlib 6. Introducing the ML Package 7. GraphFrames 8. TensorFrames 9. Polyglot Persistence with Blaze 10. Structured Streaming 11. Packaging Spark Applications Index

Chapter 5. Introducing MLlib

In the previous chapter, we learned how to prepare the data for modeling. In this chapter, we will actually use some of that learning to build a classification model using the MLlib package of PySpark.

MLlib stands for Machine Learning Library. Even though MLlib is now in a maintenance mode, that is, it is not actively being developed (and will most likely be deprecated later), it is warranted that we cover at least some of the features of the library. In addition, MLlib is currently the only library that supports training models for streaming.

Note

Starting with Spark 2.0, ML is the main machine learning library that operates on DataFrames instead of RDDs as is the case for MLlib.

The documentation for MLlib can be found here: http://spark.apache.org/docs/latest/api/python/pyspark.mllib.html.

In this chapter, you will learn how to do the following:

  • Prepare the data for modeling with MLlib
  • Perform statistical testing
  • Predict survival chances of infants using...
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