An Iterative Procedure for Optimizing the Performance of the Fuzzy-Neural Job Cycle Time Estimation Approach in a Wafer Fabrication Factory

Table 9

Comparing the performances of two training algorithms (group 4, convergence criterion: SSE < 10⁻⁶).

Algorithm	Number of epochs	MAE	MAPE	RMSE
Gradient descent	10000	79	6.7%	98
Levenberg-Marquardt	<100	23	1.8%	53