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Re:Chronon, Airbnb's ML Feature Platform, Is Now Open Source by jamesblonde on Tuesday April 09, 2024 @03:58PM (#39983582)
Normalization is a model-dependent transformation and happens after the feature store - needs to be consistent between training and inference pipelines.
Re:Chronon, Airbnb's ML Feature Platform, Is Now Open Source by nikhilsimha on Tuesday April 09, 2024 @04:31PM (#39983925)
Normalization is overloaded. I was referring to schema normalization (3NF etc) not feature normalization - like standard scaling etc.
Re:Chronon, Airbnb's ML Feature Platform, Is Now Open Source by jamesblonde on Tuesday April 09, 2024 @04:49PM (#39984092)
Ok, but star schema is denormalized. Snowflake is normalized.
Re:Chronon, Airbnb's ML Feature Platform, Is Now Open Source by nikhilsimha on Tuesday April 09, 2024 @06:10PM (#39984841)
To be pedantic, even in star schema - the dim tables are denormalized, fact tables are not.

I agree that my statement would be much better if used snowflake schema instead.