Feature preparation
In section, Feature extraction of Chapter 2, Data Preparation for Spark ML, we have reviewed a few methods for feature extraction and discussed their implementation in Apache Spark. All the techniques discussed there can be applied to our data here, especially the ones for utilizing time series and feature comparison to create new features. For example, the customer satisfaction response change over time is considered as possibly an excellent predictor.
For this project, we will need to conduct both feature extraction and feature selection, which will allow us to utilize all the techniques discussed in Chapter 2, Data Preparation for Spark ML and also Chapter 3, A Holistic View on Spark.
The data merging part is also necessary, ...
Get Apache Spark Machine Learning Blueprints now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
