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Learning PySpark

You're reading from  Learning PySpark

Product type Book
Published in Feb 2017
Publisher Packt
ISBN-13 9781786463708
Pages 274 pages
Edition 1st Edition
Languages
Authors (2):
Tomasz Drabas Tomasz Drabas
Profile icon Tomasz Drabas
Denny Lee Denny Lee
Profile icon Denny Lee
View More author details

Table of Contents (20) Chapters

Learning PySpark
Credits
Foreword
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Understanding Spark 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 logistic...

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