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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 6. Introducing the ML Package

In the previous chapter, we worked with the MLlib package in Spark that operated strictly on RDDs. In this chapter, we move to the ML part of Spark that operates strictly on DataFrames. Also, according to the Spark documentation, the primary machine learning API for Spark is now the DataFrame-based set of models contained in the spark.ml package.

So, let's get to it!

Note

In this chapter, we will reuse a portion of the dataset we played within the previous chapter. The data can be downloaded from http://www.tomdrabas.com/data/LearningPySpark/births_transformed.csv.gz.

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

  • Prepare transformers, estimators, and pipelines

  • Predict the chances of infant survival using models available in the ML package

  • Evaluate the performance of the model

  • Perform parameter hyper-tuning

  • Use other machine-learning models available in the package

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