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

Introduction


Spark streaming is an journey toward unification and structuring of the APIs in order to address the concerns of batch versus stream. Spark streaming has been available since Spark 1.3 with Discretized Stream (DStream). The new direction is to abstract the underlying using an unbounded table model in which the users can query the table using SQL or functional programming and write the output to another output table in multiple modes (complete, delta, and append output). The Spark SQL Catalyst optimizer and Tungsten (off-heap memory manager) are now an intrinsic part of the Spark streaming, which leads to a much efficient execution.

In this chapter, we not only cover the streaming facilities available in Spark's machine library out of the box, but also provide four introductory recipes that we found useful as we journeyed toward our better understanding of Spark 2.0.

The following figure depicts what is covered in this chapter:

Spark 2.0+ builds on the success of the previous...