MLOps Academy · Lesson

Define Feature Views with Feast

Declare entities and features in a registry.

The Building Blocks

In Feast you describe features with code: an Entity, a data source, and a Feature View. Get these three right and the rest follows. 🏗️

What an Entity Is

An Entity is the thing your features describe, like a driver or a customer. It is the key you will look features up by later.

driver = Entity(name="driver", join_keys=["driver_id"])

All lessons in this course

  1. Why Feature Stores Exist
  2. Define Feature Views with Feast
  3. Materialize Features to an Online Store
  4. Fetch Point-in-Time Correct Features
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