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Early applications of Ant Colony Optimization (ACO) have been mainly concerned with solving ordering problems (e.g., traveling salesman problem). We introduce a new version of Ant System-an ACO algorithm for solving subset problems. The computational study involves the Multiple Knapsack Problem (MKP); the reported results show the potential power of the ACO approach for solving this type of subset problem.
Leguizamón et al. (Mon,) studied this question.