
A New Feature Selection Technique ◾ 367
Recall is given by
Recall
TP
TP FN
=
+
(17.11)
F-measure combines both recall and precision into a global measure and it is
given by
F -measure
PrecisionRecall
=
⋅
2 (17.12)
Results
is section contains the results from our experiment regarding the classication
performance given in section “Performance Metrics” of four classiers.
Tables 17.2 and 17.3 summarize the results obtained using four datasets,
where the best results are shown in bold. Columns 2, 3, and 4 in Tables17.2
and 17.3 present the precision, recall, and F-measure achieved by the dier-
ent feature selection techniques using t ...