Book Image

Feature Store for Machine Learning

By : Jayanth Kumar M J
Book Image

Feature Store for Machine Learning

By: Jayanth Kumar M J

Overview of this book

Feature store is one of the storage layers in machine learning (ML) operations, where data scientists and ML engineers can store transformed and curated features for ML models. This makes them available for model training, inference (batch and online), and reuse in other ML pipelines. Knowing how to utilize feature stores to their fullest potential can save you a lot of time and effort, and this book will teach you everything you need to know to get started. Feature Store for Machine Learning is for data scientists who want to learn how to use feature stores to share and reuse each other's work and expertise. You’ll be able to implement practices that help in eliminating reprocessing of data, providing model-reproducible capabilities, and reducing duplication of work, thus improving the time to production of the ML model. While this ML book offers some theoretical groundwork for developers who are just getting to grips with feature stores, there's plenty of practical know-how for those ready to put their knowledge to work. With a hands-on approach to implementation and associated methodologies, you'll get up and running in no time. By the end of this book, you’ll have understood why feature stores are essential and how to use them in your ML projects, both on your local system and on the cloud.
Table of Contents (13 chapters)
1
Section 1 – Why Do We Need a Feature Store?
4
Section 2 – A Feature Store in Action
9
Section 3 – Alternatives, Best Practices, and a Use Case

Feature monitoring

We have discussed how important feature monitoring is in an ML system a few times in the book. We have also talked about how a feature store standardizes feature monitoring. In this section, let's look at an example of feature monitoring that can be useful for any model. As feature monitoring is calculating a set of statistics on feature data and notifying the data scientist or data engineer of changes, it needs the latest features used by the model.

In this section, let's calculate the summary stats on the feature data and also feature correlation, which can be run on a schedule and sent to people of interest regularly so that they can take action based on it. As mentioned in the last note of the Model training section, the steps to fetch the features are the same as what was done in that section. Once you have all the features, the next step is to calculate the required stats.

Important Note

Please note you may have to install additional libraries...