Novel Global Harmony Search Algorithm for Least Absolute Deviation

Algorithm 1

Generating a new harmony by classical HS algorithm.

For each  𝑖∈[1,2,…,𝑁]  do

   If  rand() < HMCR

   𝑥^′_𝑖=𝑥^𝑗_𝑖(𝑗=1,2,…,HMS)   //memory consideration

   If rand() < PAR

    𝑥^′_𝑖=𝑥^′_𝑖+𝑟(−1,1)×𝑏𝑤     // pitch adjustment

    𝑥^′_𝑖=min[max(𝑥^′_𝑖,𝑥_𝑖^𝐿),𝑥_𝑖^𝑈]  //truncation processing

   End

   Else

    𝑥^′_𝑖=𝑥_𝑖^𝐿+rand()×(𝑥_𝑖^𝑈−𝑥_𝑖^𝐿)  //random selection

   End

End