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

Chapter 16. Parallelism in Scala and Akka

Data analysts, scientists, and software engineers have been facing a serious challenge: the explosion of the amount of data required to build reliable models. After all, how valuable is a data mining application if the model does not scale?

The challenge of big data is addressed through a two-facet strategy: improving the efficiency of existing data mining and machine learning solutions, and leveraging scalable infrastructure (frameworks, programming languages, GPUs, and so on).

This chapter covers the Scala parallel collections, the Actor model, and the Akka framework. The next chapter introduces the Apache Spark framework and its collection of machine learning algorithms.

The following are the topics addressed in this chapter:

  • Introduction to Scala parallel collections

  • Evaluation of the performance of a parallel collection on a multicore CPU

  • The Actor model and reactive systems

  • Clustered and reliable distributed computing using Akka

  • Design of computational...