An Improved Cockroach Swarm Optimization

Algorithm 1

An improved cockroach swarm optimization algorithm.

INPUT: Fitness function:𝑓(𝑥),𝑥∈𝑅^𝐷

set parameters and generate an initial population of cockroach

set  𝑝_𝑔=𝑥₁

for  𝑖=2to𝑁  do

      if  𝑓(𝑥_𝑖)<𝑓(𝑝_𝑔)  then

            𝑝_𝑔=𝑥_𝑖

      end if

end for

for  𝑡=1to𝑇_max  do

      for  𝑖=1to𝑁  do

            for  𝑗=1to𝑁  do

                  if  abs(𝑥_𝑖−𝑥_𝑗)<visual;𝑓(𝑥_𝑗)<𝑓(𝑥_𝑖)  then

                        𝑝_𝑖=𝑥_𝑖

                  end if

            end for

             if  𝑝_𝑖==𝑥_𝑖  then

                   𝑥_𝑖=𝑤⋅𝑥_𝑖+step⋅rand⋅(𝑝_𝑔−𝑥_𝑖)

             else

                   𝑥_𝑖=𝑤⋅𝑥_𝑖+step⋅rand⋅(𝑝_𝑖−𝑥_𝑖)

             end if

              if  𝑓(𝑥_𝑖)<𝑓(𝑝_𝑔)  then

                  𝑝_𝑔=𝑥_𝑖

            end if

       end for

       if  Hunger==𝑡_hunger  then

             𝑥_𝑖=𝑥_𝑖+(𝑥_𝑖−𝑐𝑡)+𝑥_fd)

             hunger_𝑖=0

             Increment hunger_𝑖 counters

       end if

      for  𝑖=1to𝑁  do

            𝑥_𝑖=𝑥_𝑖+rand(1,𝐷)

            if  𝑓(𝑥_𝑖)<𝑓(𝑝_𝑔)  then

                  𝑝_𝑔=𝑥_𝑖

            end if

       end for

       𝑘=randint([1,𝑁])

       𝑥_𝑘=𝑝_𝑔;

end for

Check termination condition