Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics

This paper presents a novel hybrid algorithm based on particle swarm optimization (PSO) and noising metaheuristics for solving the single-source shortest-path problem (SPP) commonly encountered in graph theory. This hybrid search process combines PSO for iteratively finding a population of...

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Main Authors: Ammar W. Mohemmed, Nirod Chandra Sahoo
Format: Article
Language:English
Published: Wiley 2007-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2007/27383
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author Ammar W. Mohemmed
Nirod Chandra Sahoo
author_facet Ammar W. Mohemmed
Nirod Chandra Sahoo
author_sort Ammar W. Mohemmed
collection DOAJ
description This paper presents a novel hybrid algorithm based on particle swarm optimization (PSO) and noising metaheuristics for solving the single-source shortest-path problem (SPP) commonly encountered in graph theory. This hybrid search process combines PSO for iteratively finding a population of better solutions and noising method for diversifying the search scheme to solve this problem. A new encoding/decoding scheme based on heuristics has been devised for representing the SPP parameters as a particle in PSO. Noising-method-based metaheuristics (noisy local search) have been incorporated in order to enhance the overall search efficiency. In particular, an iteration of the proposed hybrid algorithm consists of a standard PSO iteration and few trials of noising scheme applied to each better/improved particle for local search, where the neighborhood of each such particle is noisily explored with an elementary transformation of the particle so as to escape possible local minima and to diversify the search. Simulation results on several networks with random topologies are used to illustrate the efficiency of the proposed hybrid algorithm for shortest-path computation. The proposed algorithm can be used as a platform for solving other NP-hard SPPs.
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spelling doaj-art-d206dc8c3b554cc69495933096c942722025-02-03T07:26:13ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2007-01-01200710.1155/2007/2738327383Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising MetaheuristicsAmmar W. Mohemmed0Nirod Chandra Sahoo1Faculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, Melaka 75450, MalaysiaFaculty of Engineering and Technology, Multimedia University, Jalan Ayer Keroh Lama, Melaka 75450, MalaysiaThis paper presents a novel hybrid algorithm based on particle swarm optimization (PSO) and noising metaheuristics for solving the single-source shortest-path problem (SPP) commonly encountered in graph theory. This hybrid search process combines PSO for iteratively finding a population of better solutions and noising method for diversifying the search scheme to solve this problem. A new encoding/decoding scheme based on heuristics has been devised for representing the SPP parameters as a particle in PSO. Noising-method-based metaheuristics (noisy local search) have been incorporated in order to enhance the overall search efficiency. In particular, an iteration of the proposed hybrid algorithm consists of a standard PSO iteration and few trials of noising scheme applied to each better/improved particle for local search, where the neighborhood of each such particle is noisily explored with an elementary transformation of the particle so as to escape possible local minima and to diversify the search. Simulation results on several networks with random topologies are used to illustrate the efficiency of the proposed hybrid algorithm for shortest-path computation. The proposed algorithm can be used as a platform for solving other NP-hard SPPs.http://dx.doi.org/10.1155/2007/27383
spellingShingle Ammar W. Mohemmed
Nirod Chandra Sahoo
Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics
Discrete Dynamics in Nature and Society
title Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics
title_full Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics
title_fullStr Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics
title_full_unstemmed Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics
title_short Efficient Computation of Shortest Paths in Networks Using Particle Swarm Optimization and Noising Metaheuristics
title_sort efficient computation of shortest paths in networks using particle swarm optimization and noising metaheuristics
url http://dx.doi.org/10.1155/2007/27383
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