Reddit r/MachineLearningAugust 20, 2026
Mapping intrinsic rank and informational gravity in complex tabular data: I developed a non-parametric, model-agnostic, information-theoretic diagnostic to bypass the limits of linear, rank, and Euclidean baselines. [R]
Excerpt
Links: Entropic Scree Function v1.0.0 / GitHub: https://github.com/tjleestjohn/Entropic-Scree Preprint: https://doi.org/10.5281/zenodo.22028087 TL;DR: Standard PCA fundamentally fractures non-linear dependencies into "Spurious Orthogonal Dimensions," drastically overestimating the true rank of complex tabular systems. Meanwhile, non-linear alternatives like Kernel PCA and Euclidean nearest-neighbor estimators suffer structural collapse when generative roots are entangled or sparse. I’m sharing t