An Indicator and Decomposition Based Steady-State Evolutionary Algorithm for Many-Objective Optimization

Algorithm 3

Objective space partition (OSP).

Input:  : The combined population; : Reference vector.

Output:  : The objective subspaces.

(1) for   to   do

(2)   for   to   do

(3)     Calculate the angle between and   /

(4)   

(5)   end for

(6) end  for

(7)   Find the closest subspace  

(8) for to   do

(9)  

(10)    Add into the nearest subspace   /

(11)  

(12) end for

(13) return