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This work proposes an algorithm based on Computational Transgenetic (CT) metaphor to deal with the bi-objective traveling purchaser problem (2TPP). The 2TPP consists in determining a route through a subset of markets to collect a set of products, minimizing the travel distance and the purchasing cost simultaneously. This problem contains a finite set of solutions and belongs to the field of the bi-objective...
This paper addresses a new transgenetic approach to the biobjective spanning tree, an NP-hard combinatorial optimization problem which can model different real applications on network design. The metaheuristic is inspired on endosymbiosis and horizontal gene transfer, two main evolutionary forces. The proposed algorithm is applied to 78 instances with different structures. The results concerning the...
This paper presents an experimental analysis of three algorithms for the Oil Derivatives Distribution Problem with two objectives. The problem consists in scheduling the transmission of oil products from source nodes to terminals in due times. The minimization of two objectives is considered: delivery time and fragmentation, that is, the consecutive transmission of distinct products in the same polyduct...
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