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

Data and feature preparation


In the Feature extraction section of Chapter 2, Data Preparation for Spark ML, we reviewed a few methods of feature extraction and discussed their implementation in Apache Spark. All the techniques discussed there can be applied to our data here.

Besides feature development, for this project, we will also need to spend a lot of effort in merging various datasets together to obtain more features.

Therefore, for this project, we actually need to conduct feature development, then data merging, and then feature selection, which is to utilize all the techniques discussed in Chapter 2, Data Preparation for Spark ML and Chapter 3, A Holistic View on Spark.

Data merging

To obtain features for predicting, we need to add some external datasets, including weather data from National Weather Service Forecast Office, events as well as calendar data from the Open Data portal, and socio-economic data for each zip code block from census data source.

In the, Joining data section of...