Figure 4From: Quality of experience evaluation of voice communication: an affect-based approachClassification accuracy for different combinations of affective sources (A = Acoustic, L = Lexical, D = Discourse), feature selection schemes ( Base, f10, f15, PCA ) and different classification techniques of (a) xtitSVM, (b) SVM-5WC , (c) SVM-10WC , (d) SVM - 5CV , (e) kNN , and (f) k NN- 5CV.Back to article page