Book Image

Apache Spark Machine Learning Blueprints

By : Alex Liu
Book Image

Apache Spark Machine Learning Blueprints

By: Alex Liu

Overview of this book

There's a reason why Apache Spark has become one of the most popular tools in Machine Learning – its ability to handle huge datasets at an impressive speed means you can be much more responsive to the data at your disposal. This book shows you Spark at its very best, demonstrating how to connect it with R and unlock maximum value not only from the tool but also from your data. Packed with a range of project "blueprints" that demonstrate some of the most interesting challenges that Spark can help you tackle, you'll find out how to use Spark notebooks and access, clean, and join different datasets before putting your knowledge into practice with some real-world projects, in which you will see how Spark Machine Learning can help you with everything from fraud detection to analyzing customer attrition. You'll also find out how to build a recommendation engine using Spark's parallel computing powers.
Table of Contents (18 chapters)
Apache Spark Machine Learning Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Results explanation


After passing our model evaluation stage, and deciding to select the estimated and evaluated model as our final model, our next task is to interpret the results for the company executives and technicians.

In terms of explaining the machine learning results, the company is particularly interested in understanding how their past interventions affected customer churns, and also how their product features and services influence customer churns.

So, we will work on results explanation, focusing on calculating the effects of several interventions or some product and service features for which MLlib does not offer good functions now. Therefore, in reality, we export the estimated models, and use other tools for results explanation and visualization. However, it is expected that the future releases of MLlib will have these easy functions included soon.

Calculating the impact of interventions

With logistic regression, the process of producing scores is relatively easy; it uses the...