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

Model monitoring

Another important aspect of ML is model monitoring. There are different aspects of model monitoring: one could be system monitoring in the case of online models, where you monitor the latency, CPU, memory utilization, requests per minute of the model, and more. The other aspect is performance monitoring of the model. Again, there are many different ways of measuring performance. In this example, we will look at a simple classification report and the accuracy of the model.

To generate the classification report and calculate the accuracy of the live model, you need the prediction data and also the ground truth of the live data. For this example, let's say that the churn model is run once a week to generate the churn prediction and the ground truth will be available every 4 weeks from the day the model is run. That means if the model predicts customer x's churn as True, and within the next 4 weeks, if we lose the customer for any reason, the model predicted...