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This paper presents a pseudo parallel ant colony optimization (ACO) algorithm in continuous domain. The variables of a solution are optimized by two parallel cooperative ACO-based processes, either of which attacks a relatively-independent sub-component of the original problem. Both processes contain tunable and untunable solution vectors. The best tunable vector migrates into the other process as...
Research on optimization of the vehicle routing problem with time windows (VRPTW) is one of the most significant and promising areas of investigation in ant colony system (ACS), since ACS is used to find a near-optimum solution for a discrete optimization problem. As VRPTW is the typical case of discrete optimization problem, in this paper, an ACS was proposed to optimize a VRPTW problem. The numerical...
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