Questions tagged [gradient-boosting-decision-trees]

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Chossing between gradient boosting algorithms

I just stepped in machine learning competitions and it looks like most of the mid-sized dataset competitions are won by Gradient boosting based models. However I came accross case where LightGBM,...
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What is “Missing” in output of plot_tree API of XGBoost

What this "Missing" term means here at each node after split in Image? and also what is at leaf, is this means prediction value? I converted Output variable to 1 and 0. I tried searching on ...
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What is Pruning & Truncation in Decision Trees?

Pruning & Truncation As per my understanding Truncation: Stop the tree while it is still growing so that it may not end up with leaves containing very low data points. One way to do this is to set ...