Tag
resampling
- Sep 14, 2025 Polyphase Decimation and the Cost of Changing Sample Rate Why a naive resampler computes samples it discards, how the polyphase decomposition removes that work, and what the filter length must satisfy before downsampling. scientific computing
- Oct 27, 2024 Sample Positions, Trilinear Interpolation, and the Half-Cell Offset Why a scalar grid carries two coordinate conventions, what trilinear interpolation costs and how it errs, and how resampling a field to a second grid trades resolution against aliasing. scientific computing
- Jan 10, 2023 Stratified k-Fold Cross-Validation and the Variance of the Estimate How k-fold partitioning produces a spread estimate, why the folds are not independent, and what stratification actually removes from the variance. machine learning