In Table 1, Xi means sample i, Ii represents evaluation factor node i, Zij represents the jth classification node of evaluation factor i, similarly, Ci is the clustering center node and presents the ith grade node of output variable. In a sample, evaluation factor nodes, the classification nodes which indicates the value of each evaluation factor and the output node which denotes the sample output are indicated by 1, and other nodes are indicated by 0. Fig 3 shows NG generated from dataset in Table 1.