Study of Friction and Wear Behavior of Graphene-Reinforced AA7075 Nanocomposites by Machine Learning

Table 4

Performance of wear rate forecast models.

Machine learning	ANN	KNN	RF	SVM	GBM
Mean absolute error	0.0105	0.0143	0.0093	0.0131	0.0105
Mean squared error	0.0009	0.0027	0.0010	0.0012	0.0007
Root mean squared error	0.0273	0.0513	0.0321	0.0342	0.0246
R^2 value	0.9341	0.7357	0.9045	0.8902	0.9472

GBM, gradient boosting machine; SVM, support vector machine.