Nelson Liu's Blog

decision trees

(GSoC Week 10) scikit-learn PR #6954: Adding pre-pruning to decision trees

The scikit-learn pull request I opened to add impurity-based pre-pruning to DecisionTrees and the classes that use them (e.g. the RandomForest, ExtraTrees, and GradientBoosting ensemble regressors and classifiers) was...

(GSoC Week 4) MAE and Median Calculation

In the first part of my project, I am implementing the Mean Absolute Error criterion for the scikit-learn DecisionTreeRegressor. In this blog post, I'll talk about what the criterion does,...

(GSoC Week 2) Intro to decision trees

Apologies for the late post, I had this sitting in my drafts and forgot to publish it! Decision Trees (DTs) are a non-parametric supervised learning method used for classification and...