Xuefeng Xu
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Machine Learning (1)
Math (1)
Metric (2)
Numerical (2)
Python (4)
Statistics (2)
Transform (2)

Transforming Between Distance Metrics

Transform
Metric
Python

Order-preserving transforms between Euclidean Distance, Inner Product, and Cosine Similarity.

Feb 22, 2026
10 min

How NOT to Compute Variance?

Numerical
Statistics
Python

Mathematically equivalent formulas for variance can have very different numerical stability.

Oct 3, 2025
5 min

ROC, PR, and PRG Curves

Machine Learning
Metric
Python

Graphical tools for evaluating classification models, highlighting trade-offs in model performance.

Jul 31, 2025
8 min

Numerically Stable Power Transform

Numerical
Transform
Python

Parametric methods that normalize data but require careful handling to avoid numerical instability.

Apr 14, 2025
11 min

Monotone Piecewise Cubic Interpolation

Math
Statistics

Shape-preserving interpolation method that preserves monotonicity and avoids overshoots.

Mar 13, 2025
5 min
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