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UMAP_Q_global

E Embedding

UMAP Global Structure Quality

Direction

Higher is Better

Value Range

[0, 1]

Category

Embedding

Neighborhood preservation in 2D views

Description

Average coranking quality for global relationships in UMAP space

Mathematical Formula

mean(Q_NX[K_max:]) from coranking matrix

Interpretation Guide

1 = perfect global structure preservation. Measures long-range distance fidelity in UMAP.

Related Metrics

Other metrics in the Embedding category

UMAP_Dist

↑

Spearman correlation between latent space and UMAP-reduced pairwise distance matrices

UMAP_Q_local

↑

Average coranking quality for local neighborhoods in UMAP space

UMAP_Overall

↑

Comprehensive UMAP quality combining distance correlation, local and global preservation