Most ML issues are not model problems. They are data problems.
I retrained the same churn model twice.
Same code. Same path to the data.
Different result.
Why? Because of mutable data references.
I wrote a small Data Lake vs Data Lakehouse demo showing why versioned data makes ML debugging reproducible: https://tinyurl.com/lake-vs-lakehouse-medium
#ai #machinelearning #data #lakehouse #warehouse #python #datalake #technology #regression