Main
Datasets

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

LDA

	Global	Class	Train	Test	Line
Offline	0.0 ± 0.0	17.6 ± 9.3	Impractical	N/A	N/A
Online	0.0 ± 0.0	17.6 ± 9.3	5.0 ± 9.2	15.9 ± 5.4	Impractical
Interp	0.0 ± 0.0	17.6 ± 9.3	3.6 ± 3.6	2.1 ± 3.7	3.1 ± 4.3

Metric Learning

	Global	Class	Train	Test	Line
Offline	1.0 ± 11.9	26.9 ± 5.2	Impractical	N/A	N/A
Online	1.0 ± 11.9	26.9 ± 5.2	Impractical	9.4 ± 9.4	Impractical
Interp	1.0 ± 11.9	26.9 ± 5.2	14.7 ± 5.7	15.0 ± 5.0	14.7 ± 5.7

Hybrid (Global LDA + Local Metric)

	Global	Class	Train	Test	Line
Offline	1.0 ± 11.9	19.4 ± 7.9	Impractical	N/A	N/A
Online	1.0 ± 11.9	19.4 ± 7.9	6.3 ± 5.9	17.2 ± 6.5	Impractical
Interp	1.0 ± 11.9	19.4 ± 7.9	2.6 ± 4.2	1.9 ± 3.5	2.7 ± 3.9