Book Image

Apache Spark 2.x Machine Learning Cookbook

By : Mohammed Guller, Siamak Amirghodsi, Shuen Mei, Meenakshi Rajendran, Broderick Hall
Book Image

Apache Spark 2.x Machine Learning Cookbook

By: Mohammed Guller, Siamak Amirghodsi, Shuen Mei, Meenakshi Rajendran, Broderick Hall

Overview of this book

Machine learning aims to extract knowledge from data, relying on fundamental concepts in computer science, statistics, probability, and optimization. Learning about algorithms enables a wide range of applications, from everyday tasks such as product recommendations and spam filtering to cutting edge applications such as self-driving cars and personalized medicine. You will gain hands-on experience of applying these principles using Apache Spark, a resilient cluster computing system well suited for large-scale machine learning tasks. This book begins with a quick overview of setting up the necessary IDEs to facilitate the execution of code examples that will be covered in various chapters. It also highlights some key issues developers face while working with machine learning algorithms on the Spark platform. We progress by uncovering the various Spark APIs and the implementation of ML algorithms with developing classification systems, recommendation engines, text analytics, clustering, and learning systems. Toward the final chapters, we’ll focus on building high-end applications and explain various unsupervised methodologies and challenges to tackle when implementing with big data ML systems.
Table of Contents (20 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Support Vector Machine (SVM) with Spark 2.0


In this recipe, we use Spark's RDD-based SVM API SVMWithSGD with SGD to classify the population into two binary classes, and then use count and BinaryClassificationMetrics to look at model performance.

In the interest of time and space, we use the sample LIBSVM format supplied with Spark, but provide links to additional data files offered by National Taiwan University so the reader can experiment on their own. Support Vector Machine (SVM) as a concept is fundamentally very simple, unless you want to get into the details of its implementation in Spark or any other package.

While the mathematics behind SVM is beyond the scope of this book, readers are encouraged to read the following tutorials and the original SVM paper for a deeper understanding.

The original papers are by Vapnik and Chervonenkis (1974, 1979 - in Russian) and there's also Vapnik's 1982 translation of his 1979 book:

https://www.amazon.com/Statistical-Learning-Theory-Vladimir-Vapnik...