Masazumi Yoshikawa

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This paper discusses an selective ant colony optimization algorithm. The proposed algorithm introduces the exclusive mechanism which utilizes the static evaluation of ACO. It reduces not only the calculation time, but also the total number of steps for the selection, while keeping the quality of solutions. Simulation results using benchmark data prove the(More)
This paper describes a case study on a generalpurpose Constraint Relaxation Problem solver, COASTOOL. Using COASTOOL,~ problem can be solved merely by declaring “what is the problem,” without programming “how to solve it.” The problem is solved by a novel method that generates a high-quality initial assignment using arc-consistency, and refines it using(More)
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