“…Several extensions of the TWSVM have been proposed in the literature. Reviews of the Twin SVM and its extensions have appeared in AI Review (2014) [6], the Annals of Data Science (2014) [23], and the Egyptian Informatics Journal (2015) [24]. Some of the extensions include Knowledge based Least Squares TWSVM [1], Margin Based TWSVM [20], -TWSVM [22], Twin Parametric Margin Classifier [17], Least-squares Twin Parametric-Margin Classifier [21], Twin Support Vector Hypersphere Classifier [18], Least-squares Twin Support Vector Hypersphere Classifier [14], Structural TWSVM [19] among others.…”