Table 2.

Irrelevant features identified from OCT images after sequential feature reduction technique using Weka during QIB selection

Disease classified	Feature not used (feature number used in Table 1)
NOM vs DR	1,2,3,4,5,6,7,8,12,14,15,17,18,19,20,21,22
DM vs DR	3,4,5,6,7,9,10,17,19,20,21,22
NOM vs DM vs DR	1,2,3,4,5,6,7,8,9,10,11,16,18,19,20,21,22

Abbreviations: DM, diabetes mellitus; DR, diabetic retinopathy; NOM, normal; OCT, optical coherence tomography; QIB, quantitative imaging biomarkers.