I have a model trained using “objective:ndcg” and it is returning different values in python and scala.
In Python I’m using
model = xgb.Booster()
And in Scala I’m using
val model = XGBoost.loadModel("…")
When I call model.predict() on an identical array, it gives me 2 different numbers.
Is this possible? Am I doing something wrong?
UPDATE: I’m not doing anything wrong, this seems like a pretty big issue. Unfortunately I can’t share the model since it is proprietary but I can help reproduce this issue if someone is looking into it