Main
Datasets

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

LDA

	Global	Class	Train	Test	Line
Offline	92.4 ± 0.9	93.7 ± 1.0	Impractical	N/A	N/A
Online	92.4 ± 0.9	93.7 ± 1.0	92.8 ± 0.8	93.6 ± 0.9	Impractical
Interp	92.4 ± 0.9	93.7 ± 1.0	92.7 ± 0.7	92.5 ± 0.7	92.6 ± 0.7

Metric Learning

	Global	Class	Train	Test	Line
Offline	92.4 ± 1.2	94.4 ± 0.8	Impractical	N/A	N/A
Online	92.4 ± 1.2	94.4 ± 0.8	Impractical	93.1 ± 1.2	Impractical
Interp	92.4 ± 1.2	94.4 ± 0.8	93.5 ± 0.8	93.5 ± 0.8	93.5 ± 0.8

Hybrid (Global LDA + Local Metric)

	Global	Class	Train	Test	Line
Offline	92.4 ± 1.2	93.8 ± 0.9	Impractical	N/A	N/A
Online	92.4 ± 1.2	93.8 ± 0.9	92.9 ± 0.8	93.7 ± 0.8	Impractical
Interp	92.4 ± 1.2	93.8 ± 0.9	92.6 ± 0.7	92.5 ± 0.7	92.6 ± 0.8