Table 6.

External evaluation metrics

	t-SNE			UMAP
Metric	Log-z	Unif	Norm	Log-z	Unif	Norm
Fowlkes-Mallows index	-56.3	-33.0	-52.3	-41.5	-21.6	-42.9
Adjusted Rand index	-68.2	-39.7	-63.3	-51.0	-25.9	-52.8
Adjusted Mutual Information	-60.6	-37.3	-54.5	-42.3	-27.9	-42.3
Normalized Mutual Information	-59.7	-36.7	-53.7	-41.6	-27.5	-41.6
Homogeneity	-60.2	-37.1	-54.4	-43.0	-27.5	-43.2
Completeness	-59.2	-36.2	-53.0	-40.2	-27.5	-39.9
Harmonic mean (V-measure)	-59.7	-36.7	-53.7	-41.6	-27.5	-41.6