蚁群算法及其应用研究(4)
发布时间:2021-06-06
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