Selection procedure is stopped when minimal criterion value is reached. For it necessary to put definite threshold or to point out coefficients of weight for the members of the internal criterion formula, to find optimal model out in a some subjective way. But real problems usually are presented by short or noised data samples. External accuracy criterion minima values plotted against complexity of model structure S for different noise variance . The inductive approach does not eliminate the experts or take them away from the computer, but rather assigns them a special position.
Experts indicate the selection criterion of a very general form and interpret the chosen models.
They can influence the result of modeling by formulating new criteria. Computer becomes an objective referee for scientific controversies, if criteria ensemble is coordinated between experts, which take part in discussion. The human element often involves errors and undesired decisions. Objective choice of optimal model by minimum of external criterion characteristic in actual GMDH algorithms often contradicts with the opinion of investigator. Objective algorithms gives possibility to realise real artificial intelligence.