Book Image

Mastering Machine Learning with Spark 2.x

By : Michal Malohlava, Alex Tellez, Max Pumperla
Book Image

Mastering Machine Learning with Spark 2.x

By: Michal Malohlava, Alex Tellez, Max Pumperla

Overview of this book

The purpose of machine learning is to build systems that learn from data. Being able to understand trends and patterns in complex data is critical to success; it is one of the key strategies to unlock growth in the challenging contemporary marketplace today. With the meteoric rise of machine learning, developers are now keen on finding out how can they make their Spark applications smarter. This book gives you access to transform data into actionable knowledge. The book commences by defining machine learning primitives by the MLlib and H2O libraries. You will learn how to use Binary classification to detect the Higgs Boson particle in the huge amount of data produced by CERN particle collider and classify daily health activities using ensemble Methods for Multi-Class Classification. Next, you will solve a typical regression problem involving flight delay predictions and write sophisticated Spark pipelines. You will analyze Twitter data with help of the doc2vec algorithm and K-means clustering. Finally, you will build different pattern mining models using MLlib, perform complex manipulation of DataFrames using Spark and Spark SQL, and deploy your app in a Spark streaming environment.
Table of Contents (9 chapters)
3
Ensemble Methods for Multi-Class Classification

Pattern mining with Spark MLlib

After having motivated and introduced three pattern mining problems along with the necessary notation to properly talk about them, we will next discuss how each of these problems can be solved with an algorithm available in Spark MLlib. As is often the case, actually applying the algorithms themselves is fairly simple due to Spark MLlib's convenient run method available for most algorithms. What is more challenging is to understand the algorithms and the intricacies that come with them. To this end, we will explain the three pattern mining algorithms one by one, and study how they are implemented and how to use them on toy examples. Only after having done all this will we apply these algorithms to a real-life data set of click events retrieved from http://MSNBC.com.

The documentation for the pattern mining algorithms in Spark can be found at...