Back to metrics

UMAP_Q_global

📊 Embedding Quality (UMAP & t-SNE)

UMAP Global Structure Quality

Direction

Higher is Better

Value Range

[0, 1]

Category

Embedding Quality (UMAP & t-SNE)

Visualization quality via coranking analysis

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 Quality (UMAP & t-SNE) 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