Table 4: Calculation of the mean squared error (MSE) case of 20-unit experiment.

NumberShear strength (kN)ANN predictionSquared errorNumberShear strength (kN)ANN predictionSquared errorNumberShear strength (kN)ANN predictionSquared error

13.5983.83690.05707383.6113.68380.0053153.6263.68380.003341
23.4853.07740.16613893.5853.6690.007056163.6233.760.018769
33.5053.5920.007569103.6233.760.018769173.6233.760.018769
43.4583.6690.044521113.5722.94120.397909183.8023.94220.019656
53.8483.83690.000123123.5663.5920.000676193.8363.83690.000000
63.8783.94220.004122133.843.94220.010445203.4853.07740.166138
73.5853.6690.007056143.5253.5920.004489

MSE = 0.047896