“…However, for its intractable nature, a lot of heuristic approaches have been proposed to solve TSP, and using those methods, the very short tours which cannot be guaranteed to be minimal can be found. These methods include greedy algorithm (Hoos and Stützle 2005), stimulated annealing (Meer 2007;Zhan et al 2016), tabu search (Fiechter 1994;Misevičius et al 2005), neural network (Créput and Koukam 2009;Mulder and Wunch 2003), genetic algorithm (Cunkas and Ozsaglam 2009;Khan et al 2009;Tsai et al 2014), particle swarm optimization (Cunkas and Ozsaglam 2009;Shi et al 2007), ACO (Dorigo and Gambardella 1997;Guo and Liu 2011;Mei et al 2009), etc. Currently, many other new metaheuristic optimization algorithms have been applied to solve it too, such as quantum heuristic algorithm (Bang et al 2012), artificial bee colony algorithm (Kıran et al 2013;Meng et al 2016;Wong et al 2008), shrinking blob algorithm (Jones and Adamatzky 2014), discrete cuckoo search algorithm (Ouaarab et al 2014), African buffalo optimization (Odili and Kahar 2016), discrete bat algorithm (Saji and Riffi 2016), fruit fly optimization algorithm (Huang et al 2017), artificial atom algorithm (Yildirim and Karci 2018), black hole algorithm (Hatamlou 2018), symbiotic organisms search algorithm , and a minimum spanning tree-based heuristic (Kumar et al 2018).…”