The present invention is intended to automatically select least required input items for a non-linear model and improve an efficiency of building up the non-linear model. For building up, for example, a neural network as the non-linear model, a group-by rule 105 and dividing point information 106...http://www.google.com/patents/US5819246?utm_source=gb-gplus-sharePatent US5819246 - Non-linear model automatic generating method
