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时间序列时序关联规则挖掘研究(7)

发布时间:2021-06-06   来源:未知    
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measunngseriespattern’Ssimilaritycannotmeasuretheseriespattern,Ssimilaritvoftwodifferentlengths.

Temporalassociationrulesoftimeseriesarepracticalvaluable,buttheexistingmmmgmethodshavesomeflaws.So,thedissertationfbcusesont11eImprovementandpeffectionoftheminingmethodoftemporalassociationruleSoftimeseries,offeringthetheoreticalmodelsandempiricalanalysis,inordert0gainmorereliabletemporalassociationrulesfromtimeseriesandhelDdecision—making.

Thedissertationaddressestheminingoftemporalassociationrules.Aimingatthefaultinessofeverystep,theauthorsummarizestheexistingrelativeresearch.

offerssolutionsandcarriesoutempiricalanalysis.Thedissertationcanbe

into8chapters,themaincontentareasfollowing.

(1)TimeSeriesDataPre-processing

Timeseriesdatapre—processingisthefirststep0fminingtemporal

thatishowtocleanthenoisedataintimeseries.Inthispart.the

firstdefinesthenoisedata,andthensumsuptheexistingrecognition

ofoutlieroftimeseries,aswellasanalyzestheiradvanta2esand

lastcomesupwiththerecognitionmethodofoutlieroftime

basedonrelativevariancerateoftimeseries.

(2)TimeSeriesDataCompression

Timeseriesdatacompressionisthesecondstepofminingtemporal

rules,whichmeanshowtotransformtimeseriesintoseouential

theauthoranalyzesthenecessity,objectiveandmeaningof

datainminingtemporalassociationrules.Andthenanalyzesthe

compressingways,andthenoffersestimatingsystemtovaluetimeseries

compressmn Aftercomparativeanalysis,choosestimeseriesdata

method,whichisinfavorofmining,andfinallyimprovesthe

ofdivisionpoint.

(3)TimeSeriesDataSimilarityMeasure

SimilaritymeasureofsequentialpatternsistheimportantcontentoftemporaI

rulesoftimeseries.Onlythesimilarityamongpatternsisproperly

acquirementoffrequentpatternsinsequentialpatternsandtemporal

rulesCallbesuccessfullyaccomplished.TheexistingtWOmethodsthendividedassocla“衄rulesauthormethodsdlsadvantages Atseriesassociationpatterns Firstlycompressmgexlstingdatacompressmnreorganizationassociationmeasured,theassociation

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