Page 176 - 《水资源与水工程学报》2022年第2期
P. 176

!33 " ! 2 #                       & ' ( ) & * + , -                               Vol.33No.2
               2022 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2022

            DOI:10.11705/j.issn.1672-643X.2022.02.23


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                 HIAJK:TV698.2 3   LMNOP:A    LQRK:1672643X(2022)02017207
                        Landslidedisplacementpredictionbasedonextremelearning
                                  machineoptimizedbyantcolonyalgorithm

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                    CAOBo,WANGShuai,SONGDanqing,DUHan,LIUGuangwei,ZHOUZhiwei
                       (1.SchoolofMining,LiaoningTechnicalUniversity,Fuxin123000,China;2.StateKeyLaboratoryof
                          HydroscienceandEngineering,TsinghuaUniversity,Beijing100084,China;3.OpenpitMineof
                                     ShenhuaBaorixileEnergyCo.,Ltd.,Hulunbuir021000,China)
                 Abstract:Theapplicationofoptimizationalgorithmswithhighaccuracyisveryimportantforimproving
                 theaccuracyofthepredictionmodelforlandslidedisplacement ;however,theresearchonthecomparison
                 ofdifferentoptimizationalgorithmsisrarelyreported.Here ,theBazimenlandslideintheThreeGorges
                 Reservoirareawastakenastheexample ,andtheextremelearningmachine(ELM)modelwasusedto
                 predictthelandslidedisplacement.Meanwhile ,multiplealgorithmswereusedtooptimizetheparameters
                 inthemodellingprocesstoimprovethepredictionaccuracy.Inordertoimprovethepredictionaccuracy ,
                 basedonthemovingaveragemethod,thelandslidedisplacementwasdecomposedintotwophases,which
                 weretrendtermandperiodictermdisplacements.Thetrendtermdisplacementwaspredictedbyapoly
                 nomialfunction ,andtheELMmodelthatwascompletedbyMATLABcodewasusedtopredicttheperi
                 odictermdisplacement.Finally ,thetrendandperiodicdisplacementsweresummedupasthepredicted
                 totaldisplacement.TheresultsshowedthatELMmodelcouldaccuratelypredictthecumulativelandslide
                 displacementwithasteplikecurve ,theaverageerrorofthepredictionresultswas23.5mm andthe
                 goodnessoffitwas0.973.Comparedwithparticleswarmoptimizationandgeneticalgorithm ,theantcol
                 onyoptimization(ACO)performedbetteroncomputationaltimeandcalculationresult.Hence,theex
                 tremelearningmachinemodeloptimizedbyantcolonyalgorithmhadthebestaccuracy ,withtheaverage

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