Research Article

Multispecies Coevolution Particle Swarm Optimization Based on Previous Search History

Algorithm 2

Pseudocode of adaptive normalization of population members.
   Input: Fitness tree and new generated individuals
   Output: Fitness tree
()  All nodes of Fitness tree and new generated individuals
()  
()  For
()    Compute minimum extreme point of each dimension:
()        
         
()    Compute maximum extreme point of each dimension:
()        
         
()    For
()      Normalize each dimension of each individual =
()   End For
() End For