Table 6. The ten top performing models when ranked by validation error.

Training error	NRMSE	Regressor	Test error	Dataset
89.38	0.26	RR	46.23	PHYLUM_NONCURATED_JOINT
88.93	0.26	ENR	47.82	PHYLUM_NONCURATED_JOINT
74.55	0.30	LR	49.31	SPECIES_NONCURATED_JOINT
90.03	0.27	SVR	49.80	PHYLUM_NONCURATED_JOINT
73.62	0.28	SVR	50.52	PHYLUM_CURATED_JOINT
67.57	0.32	RR	51.14	SPECIES_NONCURATED_JOINT
67.40	0.32	ENR	51.63	SPECIES_NONCURATED_JOINT
89.51	0.29	LR	51.71	PHYLUM_NONCURATED_JOINT
78.66	0.35	RR	51.94	ORDER_CURATED_JOINT
74.66	0.30	KNR	52.17	CLASS_CURATED_JOINT