“…Several improved versions of this idea have been proposed to solve the problem (Jan a cek & Buzna, 2008;Ji, Tang, Li, Yang, & Liao, 2016; Mladenovi c, Brimberg, Hansen, & Moreno-P erez, 2007). Other popular methods include local search (Brimberg, Drezner, Mladenovi c, & Salhi, 2014), tabu search (Wang, Li, Yuan, Ye, & Wang, 2016b), neighbourhood search (Qazi, Lam, Xiao, Ouyang, & Yin, 2016), etc.…”