Work place: Department of Mathematics, Hamdard University Bangladesh, Gazaria, Munshiganj, 1510, Bangladesh
E-mail: rafsan@hamdarduniversity.edu.bd
Website:
Research Interests:
Biography
Md. Rafsan Islam is currently working as a Lecturer in Mathematics at Hamdard University Bangladesh, Gazaria, Munshiganj, Bangladesh. He received his B.Sc. degree in Mathematics and M.Sc. degree in Applied Mathematics from Khulna University, Bangladesh. His research interests are centered on Applied Mathematics, especially on combinatorial optimization and mathematical modeling. He wishes to contribute in this field as well as for humankind.
By Md. Azizur Rahman Kazi Mohammad Nazib Md. Rafsan Islam Lasker Ershad Ali
DOI: https://doi.org/10.5815/ijisa.2025.03.02, Pub. Date: 8 Jun. 2025
The Traveling Salesman Problem (TSP) is a well-known NP-hard combinatorial optimization problem, commonly studied in computer science and operations research. Due to its complexity and broad applicability, various algorithms have been designed and developed from the viewpoint of intelligent search. In this paper, we propose a two-stage method based on the clustering concept integrated with an intelligent search technique. In the first stage, a set of clustering techniques - fuzzy c-means (FCM), k-means (KM), and k-mediods (KMD) - are employed independently to generate feasible routes for the TSP. These routes are then optimized in the second stage using an improved Genetic Algorithm (IGA). Actually, we enhance the traditional Genetic Algorithm (GA) through an advanced selection strategy, a new position-based heuristic crossover, and a supervised mutation mechanism (FIB). This IGA is implemented to the feasible routes generated in the clustering stage to search the optimized route. The overall solution approach results in three distinct pathways: FCM+IGA, KM+IGA, and KMD+IGA. Simulation results with 47 benchmark TSP datasets demonstrate that the proposed FCM+IGA performs better than both KM+IGA and KMD+IGA. Moreover, FCM+IGA outperforms other clustering-based algorithms and several state-of-the-art methods in terms of solution quality.
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