Because the sample values often have an interval feature.So

in this paper

we improve the ART Neural Network to an Interval-valued ART Neural Network whose inputs of the first layer and weights between the first layer and output layer belong to the interval-valued fuzzy sets I .We proposed the Normative Method

Similar Degree Computing Method

Threshold Examining Method and Learning Rule of the Interval-Valued ART.At last

an example of transmission form choice in the mechanical design is given.This example proves that our Interval-valued ART is effective.