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Scala for Machine Learning, Second Edition

You're reading from Scala for Machine Learning, Second Edition Build systems for data processing, machine learning, and deep learning

Product type Paperback

Published in Sep 2017

Publisher Packt

ISBN-13 9781787122383

Length 740 pages

Edition 2nd Edition

Languages

Scala

Tools

Apache Spark

Concepts

Data Processing

Author (1):

Patrick R. Nicolas

View More author details

Table of Contents (21) Chapters

Preface

1. Getting Started

2. Data Pipelines FREE CHAPTER

3. Data Preprocessing

4. Unsupervised Learning

5. Dimension Reduction

6. Naïve Bayes Classifiers

7. Sequential Data Models

8. Monte Carlo Inference

9. Regression and Regularization

10. Multilayer Perceptron

11. Deep Learning

12. Kernel Models and SVM

13. Evolutionary Computing

14. Multiarmed Bandits

15. Reinforcement Learning

16. Parallelism in Scala and Akka

17. Apache Spark MLlib

A. Basic Concepts

B. References

Index

Performance evaluation

There are numerous configuration parameters that can be set to optimize the execution of Spark jobs. The topic of tuning and the resolution of performance bottlenecks on Spark clusters deserves at the minimum, a dedicated chapter.

This section does not address Mesos-and Yarn-specific configurations as they are not related to machine learning and are beyond the scope of this book [7:11].

Tuning parameters

The performance of a Spark application depends greatly on the configuration parameters. Selecting the appropriate value for those configuration parameters in Spark can be overwhelming—there are more than 60 configuration parameters as of the last count. Fortunately, the majority of those parameters have relevant default values.

However, there are a few parameters that deserve your attention, including:

Number of cores available to execute transformation and actions on RDDs: config.cores.max.
Memory available for the execution of the transformation and actions spark...

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Authors (1)

R. Nicolas

R. Nicolas

Patrick R. Nicolas is the director of engineering at Agile SDE, California. He has more than 25 years of experience in software engineering and building applications in C++, Java, and more recently in Scala/Spark, and has held several managerial positions. His interests include real-time analytics, modeling, and the development of nonlinear models.

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