“…They include ant colony optimization (Socha & Dorigo, 2008), artificial bee colony algorithm (Akay & Karaboga, 2010;Kang et al, 2011), evolution strategies (ES) (Beyer, 2001), differential evolution (Das & Suganthan, 2011;Dasgupta et al, 2009;Kukkonen & Lampinen, 2004;Mezura-Montes et al, 2010;Noman & Iba, 2005;Rönkkönen et al, 2005;Storn & Price, 1997;Zhang et al, 2008), particle swarm optimization (Chen et al, 2007;Huang et al, 2010;Juang et al, 2011;Krohling & Coelho, 2006;l. Sun et al, 2011), and so on.…”