Forecasting the Friction Coefficient of Rubbing Zirconia Ceramics by Titanium Alloy

Table 9

Evaluation metric scores of the proposed models for experiment-II.

Model	Training minutes	MAE; ×10^−2	MSE; ×10^−3	RMSE; ×10^−2	POCID; %
ARIMA	7
	10
	13
GRU-DNN	7
	10
	13

Bold values indicate best results achieved for each experiment.