Main
Datasets

	RecogRate	ErrorRate	RelativeError	Timings(sec)
MultiPIE	Link	Link	Link	Selected
Caltech_101	Link	Link	Link	Link
Sampled_MNIST	Link	Link	Link	Link

LDA

	Global	Class	Train	Test	Line
Offline	5.0 ± 0.9	15.9 ± 2.5	Impractical	N/A	N/A
Online	-	-	1158.5 ± 172.9	59.0 ± 5.9	Impractical
Interp	-	-	19.6 ± 3.4	28.3 ± 3.7	281.4 ± 40.0

Metric Learning

	Global	Class	Train	Test	Line
Offline	3.6 ± 0.3	12.9 ± 0.6	Impractical	N/A	N/A
Online	-	-	Impractical	1175.3 ± 31.7	Impractical
Interp	-	-	14.6 ± 0.8	22.4 ± 0.9	184.6 ± 8.7

Hybrid (Global LDA + Local Metric)

	Global	Class	Train	Test	Line
Offline	3.5 ± 0.0	12.6 ± 0.1	Impractical	N/A	N/A
Online	-	-	1219.4 ± 12.2	63.3 ± 0.4	Impractical
Interp	-	-	14.3 ± 0.2	22.0 ± 0.1	184.5 ± 1.6