A classification estimating system can include an input element group； an intermediate element group into which are input values of first intermediate variables for which a first multiple desensitization, including an accumulation of values of each input element of a first input element group and each value of a first output sensitivity and each value of a first multiplex output sensitivity, has been carried out and calculated； an output element group into which is input a value of an output variable calculated based on a value of each intermediate element of a first intermediate element group and a value of each connection weight； a classification information estimating module for estimating classification information based on pre-stored correspondence relationship information and a value of the output variable； and a classification information display.
