HYEI: A New Hybrid Evolutionary Imperialist Competitive Algorithm for Fuzzy Knowledge Discovery

Algorithm 1

The antecedent fuzzy set equations used in this paper.

(1) Small: 𝑀=−4×𝐴+1

(2) Medium Small: 𝑀=4×𝐴 and 𝑀=−4×𝐴+2

(3) Medium: 𝑀=4×𝐴−1 and 𝑀=−4×𝐴+3

(4) Medium Large: 𝑀=4×𝐴−2 and 𝑀=−4×𝐴+4

(5) Large: 𝑀=4×𝐴−3

𝑀: Membership function; 𝐴: Attribute value