Biogeography-Based Optimization with Orthogonal Crossover

Algorithm 1

Procedure of migration operator.

(1) Begin

(2)  For  𝑖=1 to NP

(3)    Select 𝑋_𝑖 based on immigration rate 𝜆_𝑖

(4)    If  𝑋_𝑖 is selected

(5)     For  𝑗=1 to NP

(6)      Select 𝑋_𝑗 based on emigration rate 𝜇_𝑗

(7)      If  rand(0,1)<𝜇_𝑗

(8)       𝐻_𝑖(SIV)=𝐻_𝑗(SIV)   (∗)

(9)      EndIf

(10)    EndFor

(11)   EndIf

(12) EndFor

(13) End