New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs

This article presents ant algorithms for single- and multi-criteria industrial optimization problems. A common factor in these algorithms is the determination of the set with the maximum number of cliques, which represent the solution to multidimensional assignment problems in d-partite graphs. In t...

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Main Author: Krzysztof Schiff
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/15/8251
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author Krzysztof Schiff
author_facet Krzysztof Schiff
author_sort Krzysztof Schiff
collection DOAJ
description This article presents ant algorithms for single- and multi-criteria industrial optimization problems. A common factor in these algorithms is the determination of the set with the maximum number of cliques, which represent the solution to multidimensional assignment problems in d-partite graphs. In the case of weighted incomplete graphs, the goal is to determine the set with the maximum number of cliques and the maximum sum of the weights of their edges. In the case of unweighted incomplete graphs, the goal is to determine the set with the maximum number of maximum cliques. In the case of complete weighted graphs, the goal is to determine all maximum cliques with the minimal sum of their edge weights. These optimization problems are solved using the various ant algorithms proposed in this paper. The proposed algorithms differ not only in terms of the objective function, but also in terms of desirability functions, as previously established, and they achieved a smaller sum of weights for cliques in the case of weighted complete graphs than previous ant algorithms presented in the literature. The same applies to unweighted incomplete graphs. The presented algorithms resulted in a greater number of maximal cliques than previous ant algorithms presented in the literature. This study is the first to propose the presented ant algorithms in the case of weighted incomplete graphs.
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spelling doaj-art-52082d1b51d348c88f8f02a60d9599622025-08-20T03:36:35ZengMDPI AGApplied Sciences2076-34172025-07-011515825110.3390/app15158251New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite GraphsKrzysztof Schiff0Faculty of Electrical and Computer Engineering, Cracow University of Technology, 31-155 Cracow, PolandThis article presents ant algorithms for single- and multi-criteria industrial optimization problems. A common factor in these algorithms is the determination of the set with the maximum number of cliques, which represent the solution to multidimensional assignment problems in d-partite graphs. In the case of weighted incomplete graphs, the goal is to determine the set with the maximum number of cliques and the maximum sum of the weights of their edges. In the case of unweighted incomplete graphs, the goal is to determine the set with the maximum number of maximum cliques. In the case of complete weighted graphs, the goal is to determine all maximum cliques with the minimal sum of their edge weights. These optimization problems are solved using the various ant algorithms proposed in this paper. The proposed algorithms differ not only in terms of the objective function, but also in terms of desirability functions, as previously established, and they achieved a smaller sum of weights for cliques in the case of weighted complete graphs than previous ant algorithms presented in the literature. The same applies to unweighted incomplete graphs. The presented algorithms resulted in a greater number of maximal cliques than previous ant algorithms presented in the literature. This study is the first to propose the presented ant algorithms in the case of weighted incomplete graphs.https://www.mdpi.com/2076-3417/15/15/8251ant algorithmsmultidimensional assignmentmaximum cliqued-partite graphmulti-criteria optimizationindustrial control
spellingShingle Krzysztof Schiff
New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs
Applied Sciences
ant algorithms
multidimensional assignment
maximum clique
d-partite graph
multi-criteria optimization
industrial control
title New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs
title_full New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs
title_fullStr New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs
title_full_unstemmed New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs
title_short New Ant Colony Optimization Algorithms for Variants of Multidimensional Assignments in d-Partite Graphs
title_sort new ant colony optimization algorithms for variants of multidimensional assignments in d partite graphs
topic ant algorithms
multidimensional assignment
maximum clique
d-partite graph
multi-criteria optimization
industrial control
url https://www.mdpi.com/2076-3417/15/15/8251
work_keys_str_mv AT krzysztofschiff newantcolonyoptimizationalgorithmsforvariantsofmultidimensionalassignmentsindpartitegraphs