The accumulated experience ant colony for the travelling salesman problem

Author(s)

Randall, Marcus; Montgomery, James

Abstract

Ant colony optimization techniques are usually guided by pheromone and heuristic cost information when choosing the next element to add to a solution. However, while an individual element may be attractive, usually its long term consequences are neither known nor considered. For instance, a short link in a traveling salesman problem may be incorporated into an ant's solution, yet, as a consequence of this link, the rest of the path may be longer than if another link was chosen. The Accumulated Experience Ant Colony uses the previous experiences of the colony to guide in the choice of elements. This is in addition to the normal pheromone and heuristic costs. Two versions of the algorithm are presented, the original and an improved AEAC that makes greater use of accumulated experience. The results indicate that the original algorithm finds improved solutions on problems with less than 100 cities, while the improved algorithm finds better solutions on larger problems.

Publication year

2003

Publication type

Journal article

Source

International Journal of Computational Intelligence and Applications, Vol. 3, no. 2 (June 2003), pp. 189-198

ISSN

1469-0268

Publisher

Imperial College Press

Copyright

Copyright © 2003 Imperial College Press.

Details