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Table 9 Classification performance for pea shoot leaf by applying tenfold validation using proposed algorithm with selected features

From: Machine learning driven non-invasive approach of water content estimation in living plant leaves using terahertz waves

Feature selection methods

Classifiers

Serial num. of features

No of selected features

Accuracy (%)

SFS

SVM

18

1–6, 8–14, 17, 19, 20, 22, 25

97.2

KNN

13

1–5, 9–11, 18–20, 23, 25

94.4

D-Tree

7

2, 4, 5, 6, 17, 18, 19

93.1

SBS

SVM

3

13, 19, 22

96.8

KNN

5

7, 12, 17, 19, 20

94.9

D-Tree

2

8, 20

92.3

Relief-F

SVM

12

2, 4, 10, 11, 17–21, 23–25

98.6

KNN

99.1

D-Tree

95.5