Table 7.

Validation accuracies in comparison with the work by Werner et al [13] using feature selection.

Binary classification	RFa	KNNb	Werner et al [13]
BL vs PL1	86.0	76.8	55.4
BL vs PL2	70.0	69.1	60.2
BL vs PL3	69.8	72.1	65.9
BL vs PL4	61.5	60.0	73.8

^aRF: random forest.

^bKNN: k-nearest-neighbor.