蚁群算法及其应用研究(4)

发布时间:2021-06-06

北京T业大学T学硕十学位论文

basis,weintroducetheconceptofgrain.Coarsegraincallbesubdividedintosmall

agrains.Namely,coarsedistrictcallbesubdividedintosmallerdistrictstoform

callMultiple-grainRepresentation.Sothatwedividethelarge—scaleprobleminto

sub—problemsofseverallevels,thenmergethesub-solutionsintothecompletesolution.

Finally,wedosomeresearchworkonAntcolonyalgorithmforMultidimensionalKnapsackProblem.Associationdistances

aamongobjectsareminedonineachcyclewithallTop-kstrategy.Then,apheromonediffusionmodelbasedinfofountainofobjectisestablishedandAsimplemutationschemeisemployedtooptimizetheevolutionresults.

Fortheabovealgorithms,largeamountofexperimentsonthebenchmarkshowthattheproposedalgorithmscailnotonlyenhanceconvergencespeedbutalsogetmuchmoreoptimalsolutions.

Keywordsantcolonyoptimization;diffusionmodel;mutationstrategy;TSP;MKP

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