Research Article

An Enhanced Discrete Artificial Bee Colony Algorithm to Minimize the Total Flow Time in Permutation Flow Shop Scheduling with Limited Buffers

Algorithm 4

Combined local search.
(1) apply ILS to
(2) while (true)
(3)  apply SLS to
(4)  if ( is not improved during the previous Step)
(5)   break
(6)  endif
(7)  apply ILS to
(8)  if ( is not improved during the previous Step)
(9)   break
(10)  endif
(11) endwhile