Overview
Feature stores solve the problem of 'feature silos' where different teams recreate the same features. They provide a single source of truth for features used across an organization.
Key Benefits
- Consistency: Ensures the exact same feature logic is used for both training and real-time inference (preventing data leakage).
- Reusability: Allows teams to share and discover features created by others.
- Versioning: Tracks changes to features over time.
Popular Tools
- Feast (open source)
- Tecton
- AWS SageMaker Feature Store