Page 128 - 《水资源与水工程学报》2022年第3期
P. 128

!33 " ! 3 #                       & ' ( ) & * + , -                               Vol.33No.3
               2022 $ 6 %               JournalofWaterResources&WaterEngineering                 Jun.,2022

            DOI:10.11705/j.issn.1672-643X.2022.03.16


                     '1 Kmeans-EMD| IWOA-Elman 2=>


                                        §–}Ýs?e|%@


                                       až, Ÿ ¡, Dd¢, £ o, .V¤
                                    ( ;÷k6 WZlmV—*¥ß=>&'?@A, ;÷ 300072)

                 D E: æŽä"….Ž?1z&TL0, £®+Æ~mo, æŽä"Z÷Úl`a、 ‰¥Çª•€…Š ¿
                 -…qÈÐ, éêŽ?1z.–", £3öü¹ÿvæŽä"-…ÐqÈ*õQµ2‰¾(^。s*²æ
                 Žä"ÏØ1z, ŽæŽä"|âÖז—, Z[ Kmeans 7¾óȉ¶qÈ-…Ð, X×-…ÐvÑ@d
                 (EMD) ›éê, õ71 EMD?¿v-…ЖʼnzqÈ, Í·-…ÐqÈ–"; ˜ŠZ[Ñÿç
                 ††ó"×、 >‚¶((ìL、 4|¡è¶þ&*éWw¡ - Z8Qêå˜ëWÆ×7¾(IWOA) Æ× Elman b
                 ÑÏì, õX‚æŽä"-…ÐõQde, ?¿væŽä"-…ÐõQ。îÅc‰¾¡[1]$\keW¶l
                 m, ›œ:Kmeans 7¾* EMDJŽç[µ»g‚ݾž*·–"ÿqÈæŽä"o-…Ð;IWOA-El
                 man bÑÏìïÈÐ*—?е2€ÏRõ 0.90775, µ»…ádeý<žŸ*³ÿˆ*ÏØ$Õ¶*ž¡
                 ¶, üžŸsŽ?1z·–".ì‰×³ÏØ7À。
                 FGH: æŽä"; -…ÐqÈ;Kmeans 7¾; Ñ@d; -…ÐõQ;IWOA-Elman bÑÏì
                 8IBJK:TV641   LMNOP:A    LQRK:1672643X(2022)03012408
                         Outlierdetectionandcorrectionforrollingspeedbasedon

                                       Kmeans-EMDandIWOA-Elman

                           QIAOTiancheng,TONGDawei,WANGJiajun,GUANTao,WUBinping
                      (StateKeyLaboratoryofCivilEngineeringSimulationandSafety,TianjinUniversity,Tianjin300072,China)
                 Abstract:Rollingspeedisanimportantindicatorforevaluatingcompactionquality,butinthemonitoring
                 process,therollingspeediseasilydisturbedbyconstructionenvironment,positioningdriftandotherdis
                 turbances ,resultinginoutlierswhichwillaffecttheaccuracyofcompactionqualityevaluation.However,
                 methodsfordetectingandcorrectingoutliersofrollingspeedarenotreportedincurrentresearch.Toen
                 surethedataqualityoftherollingspeed ,basedonthecharacteristicsofthetimeseriesofrollingspeed,
                 weadoptedKmeansalgorithmtodetectoutlierspreliminarilyandweakentheinfluenceofoutliersonthe
                 resultsofempiricalmodedecomposition(EMD).AccordingtotheresultsofEMD,thefinequantitative
                 detectionofoutlierswasachieved ,whichinturnimprovedtheaccuracyofoutlierdetection.Further
                 more,whaleoptimizationalgorithm(WOA)improvedbychaospopulationinitialization,nonlinearcon
                 vergencefactors ,adaptiveinertialweightsandcatfisheffect-goldensinewasusedtooptimizetheElman
                 neuralnetworkandthenacorrectionmodelwasestablishedforthecorrectionofoutliersofrollingspeed.
                 AccordingtotheapplicationoftheproposedmethodtoalargehydropowerprojectinSouthwestChina,
                 thecombinedeffectofKmeansalgorithmandEMDcandetectoutliersofrollingspeedwithhigheraccura
                 cythantheboxplotmethod ;thecorrelationcoefficientbetweenthepredictedvalueoftheIWOA-Elman
                 neuralnetworkandtheactualvaluecanreachupto0.90775 ,comparedtoconventionalmodels,the

                !"#$:20210904; %&#$:20211213
                '()*: =>45/678Râ=JŽ78.3(U1965207)
                +,-.: ¼;E(1997-), a, ¼›=ããä2K, ÓM(^P, STUVki>Úl(^。
                /0+,: åk·(1982-), a, _]»IK, LM, ÒNO, ÓMPQR, STUVWZW¶lmÚl˜"V—*?|Æ
                        ǐš0°(^。
   123   124   125   126   127   128   129   130   131   132   133