Main
Datasets

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

LDA

	Global	Class	Train	Test	Line
Offline	0.1 ± 0.0	0.6 ± 0.1	Impractical	N/A	N/A
Online	-	-	375.3 ± 19.1	19.5 ± 1.4	Impractical
Interp	-	-	3.9 ± 0.5	7.2 ± 1.2	114.7 ± 8.4

Metric Learning

	Global	Class	Train	Test	Line
Offline	0.1 ± 0.0	0.6 ± 0.0	Impractical	N/A	N/A
Online	-	-	Impractical	672.3 ± 15.4	Impractical
Interp	-	-	3.0 ± 0.0	5.2 ± 0.1	98.1 ± 0.9

Hybrid (Global LDA + Local Metric)

	Global	Class	Train	Test	Line
Offline	0.1 ± 0.0	0.5 ± 0.0	Impractical	N/A	N/A
Online	-	-	311.1 ± 3.1	15.7 ± 0.5	Impractical
Interp	-	-	3.1 ± 0.2	5.3 ± 0.2	97.8 ± 1.6