Research Article

Mathematical Programming Approaches to Classification Problems

Table 10

The holdout sample hit rate (in percentage) of dataset D4.

Models 𝑆 = 2 𝑆 = 3

Piecewise-linear MCA*91,26 ( 1 6 )89,07 ( 2 0 )
Piecewise QSMCA*91,26 ( 1 6 )99,45 ( 1 )
Piecewise QSMSD*94,5 ( 1 0 )97,27 ( 5 )

𝐷 = 2 𝐷 = 3

GSPSN’299,45 ( 1 )98,36 ( 3 )
QGSPSN’295,6 ( 8 )93,99 ( 1 1 )
QSPSN’2100 (0)

The values in parentheses are the numbers of misclassified observations.
G 1 convex.