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Why does lightgbm not fit my toy example but catboost does? (2 order interactions) [D]

This story is from 2026-08-22. It is preserved in the archive; the latest stories are on the live feed.

I am trying understand how tree-based regression model handle the dependencies of the target variables on the interaction of explanatory variables. However my experiment revealed that my understanding about the fitting process of a lgbm is not correct. And I don’t know why. My experiment is quite s…

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  1. 2026-08-22 09:37 · r/MachineLearning
    Why does lightgbm not fit my toy example but catboost does? (2 order interactions) [D]

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