简介：OutlierminingisanimportantaspectindataminingandtheoutlierminingbasedonCookdistanceismostcommonlyused.Butweknowthatwhenthedatahavemulticollinearity,thetraditionalCookmethodisnolongereffective.Consideringtheexcellenceoftheprincipalcomponentestimation,weuseittosubstitutetheleastsquaresestimation,andthengivetheCookdistancemeasurementbasedonprincipalcomponentestimation,whichcanbeusedinoutliermining.Atthesametime,wehavedonesomeresearchonrelatedtheoriesandapplicationproblems.
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