Centralized repository for storing, managing, and serving machine learning features for consistent use across training and production. Like a shared ingredient pantry that ensures everyone uses the same quality ingredients.
A feature store ensures that the 'customer lifetime value' calculation used during model training is identical to what's used when making predictions.
AWS, Azure, and GCP offer managed feature store services that integrate with their respective machine learning platforms, providing consistent feature management across training and production environments. OCI currently does not have a direct equivalent.