Table 2.

Network structure created on the basis of the learning sets prepared for dried strawberry fruit. BP: Back-Propagation; CG: conjugate gradient algorithm.

Name	Z1	Z2	Z3
Model ANN	MLP 2:2-6-1:1	MLP 2:2-14-1:1	MLP 2:2-4-1:1
Training error	0.14	0.01	0.32
Validation error	0.04	0.09	0.29
Testing error	0.32	0.18	0.45
Quality of learning	0.98	0.98	0.85
Quality of validation	0.99	0.99	0.86
Quality of testing	0.90	0.96	0.76
Learning cases	120	40	40
Training algorithm	BP50, CG134b	BP50, CG19b	BP06