Begin
  Step  1:  Initialization. Set the generation counter ; and randomly initialize
     a population of NP individuals , the parameter TS, , ALLOW
  Step  2: Evaluate the fitness(HSI) for each individual in according to (4.1).
  Step  3:  while The halting criteria is not satisfied do
     Sort the population from worst to best according to HSI
     For each individual, map the HSI to the number of species
     Calculate the immigration rate and the emigration rate for each
     individual
     Modify the population with the tabu search migration operator shown in
     Algorithm 7
     Update the probability for each individual
     Mutate the population with the tabu search mutation operator shown in
     Algorithm 8
     Evaluate the fitness for each individual in
     Memorize the best solution achieved so far
     
  Step  4: end while
End.
Algorithm 9: Algorithm description of TS/BBO.