Book Image

Scala for Machine Learning, Second Edition - Second Edition

Book Image

Scala for Machine Learning, Second Edition - Second Edition

Overview of this book

The discovery of information through data clustering and classification is becoming a key differentiator for competitive organizations. Machine learning applications are everywhere, from self-driving cars, engineering design, logistics, manufacturing, and trading strategies, to detection of genetic anomalies. The book is your one stop guide that introduces you to the functional capabilities of the Scala programming language that are critical to the creation of machine learning algorithms such as dependency injection and implicits. You start by learning data preprocessing and filtering techniques. Following this, you'll move on to unsupervised learning techniques such as clustering and dimension reduction, followed by probabilistic graphical models such as Naïve Bayes, hidden Markov models and Monte Carlo inference. Further, it covers the discriminative algorithms such as linear, logistic regression with regularization, kernelization, support vector machines, neural networks, and deep learning. You’ll move on to evolutionary computing, multibandit algorithms, and reinforcement learning. Finally, the book includes a comprehensive overview of parallel computing in Scala and Akka followed by a description of Apache Spark and its ML library. With updated codes based on the latest version of Scala and comprehensive examples, this book will ensure that you have more than just a solid fundamental knowledge in machine learning with Scala.
Table of Contents (27 chapters)
Scala for Machine Learning Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Index

Streaming engine


The Apache Spark streaming component is an integral part of the framework. It does not require any specific installation or configuration. Apache Spark In-memory capabilities are a good solution to problems dealing with large scale real-time processing.

There are numerous articles and books related to the Apache Spark streaming library. This section introduces some basic concepts in the context of machine learning algorithms.

Why streaming?

Many applications require real-time or pseudo real-time processing of data from weather reporting, automated manufacturing processing, ATMs, advertising targeting, to financial markets analysis. The implementation of such systems is challenging because of its stringent requirements:

  • Low latency: Response time is sometimes computed in milliseconds

  • Continuous traffic: Never ending stream of data

  • No downtime: Fault-tolerant design to avoid loss of information

It is not uncommon that these requirements are formalized into contractual obligations...