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Solving a combinatorial problem using a local optimization in ant based system

C-M. Pintea (cmpintea***at***cs.ubbcluj.ro)
D. Dumitrescu (ddumitr***at***cs.ubbcluj.ro)

Abstract: Local optimizations introduced to obtain improved tours for Traveling Salesman Problem have a great impact on the final solution. That is way we introduce a new ant system algorithm with a new local updating pheromone rule, and the tours are improved using k-opt techniques. The tests use different parameters, in order to obtain solutions close to the optimal values.

Keywords: Ant Systems, Heuristics, k-opt algorithms, Traveling Salesman Problem

Category 1: Combinatorial Optimization

Category 2: Combinatorial Optimization (Approximation Algorithms )

Citation: Manuscript, Department of Computer-Science, Babes-Bolyai University, Cluj-Napoca, Romania, December 2005

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Entry Submitted: 12/28/2005
Entry Accepted: 01/02/2006
Entry Last Modified: 03/10/2007

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