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Peter Bamidele Shola and Asaju La’aro Bolaji

**keywords:** Cheapest shop seeker, COPs, metaheuristics, population-based algorithm, TSP

In this paper, a discrete version of the cheapest shop seekers algorithm is presented for solving the traveling salesman problem. The cheapest shop seeker, a recently proposed nature-inspired algorithm utilized to solve the global optimization function. It is a population-based metaheuristic inspired by mimicking a group of shoppers cooperatively seeking for the cheapest shop for shopping and proved to be effective when investigated in continuous domain. The performance of the discrete CSS algorithm is evaluated on some benchmark instances from TSPLIB. Experimental results show that the discrete version is found to be effective on small instances where it obtained optimum solution. Similarly, it had comparable performance on the large instance.

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