Stats with Python: Sample Correlation Coefficient is BiasedFebruary 24, 2021 | 8 min read
Is the sample correlation coefficient an unbiased estimator? No! This post visualizes how large its bias is and shows how to fix it.
Different Measures of Feature Importance Behave DifferentlySeptember 05, 2020 | 10 min read
This post compares the behaviors of different feature importance measures in tricky situations.
PageRank Explained: Theory, Algorithm, and Some ExperimentsMarch 12, 2020 | 12 min read
How does Google's PageRank work? Its theory and algorithm are explained, followed by numerical experiments.