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1、华南理工大学计算机科学与工程学院2004—2005学年度第一学期期末考试《数据挖掘与数据仓库技术》试卷专业：双语班年级：2001姓名：学号：一.Close(1pointperblank,thetotal:20points>1.Adatawarehouseisa(subject-oriented>,(integrated>,(time-variant>and(nonvolatile>collectionofdatainsupportofmanagement’sdecisionmakingprocess.P40b5
2、E2RGbCAP2.Themostpopulardatamodelforadatawarehouseisamultidimensionalmodel.Suchamodelcanexistintheformofa(star>schema,a(snowflake>schema,ora(factconstellation>schema.P48p1EanqFDPw3.OLTPistheabbreviationfor(on-linetransactionprocessing>,andOLAPistheabbreviati
3、onfor(on-lineanalyticalprocessing>.P42DXDiTa9E3d4.Measurescanbeorganizedintothefollowingthreecategories,basedonthekindofaggregatefunctionsused,(distributive>,(algebraic>,and(holistic>.P54RTCrpUDGiT5.Methodsfordatapreprocessingcanbeorganizedintothefollowingca
4、tegories:(datacleaning>,(dataintegration>,(datatransformation>and(datareduction>.P1055PCzVD7HxA6.Listfourknowledgetypestobemined:(characterization>,(discrimination>,(association>and(classification/prediction,clustering>.jLBHrnAILg二.Makeadecision:ifyouthinkth
5、efollowingstatementisrightthenmarkitwithÖ,otherwisemarkitwith´.(1pointperdecision,thetotal:10points>xHAQX74J0X1.Decisiontreeinductionisanunsupervisedlearningmethod.(X>LDAYtRyKfE2.Clusteringisasupervisedlearningmethod.(X>3.TheOLTPsystemisoperationalprocessing
6、-oriented,whiletheOLAPsystemisinformationalprocessing-oriented.(Ö>Zzz6ZB2Ltk4.TheaccessoperationtotheOLTPsystemismostlyread/write,whiletheaccessoperationtotheOLAPsystemismostlyread.(Ö>dvzfvkwMI15.Outlierandnoisydataareuselessfordataminingtaskandshouldberemov
7、ed.(X>rqyn14ZNXI6.ForanitemsetS,theconstraintSÍVisanti-monotone.(X>EmxvxOtOco7.ForanitemsetS,theconstraintmin(S>³vismonotone.(Ö>SixE2yXPq58.Theaggregatefunctionsmin(>andmax(>aredistributive,wheremin(>isusedtocomputetheminimumvalueofadatasetandmax(>isusedtoco
8、mputethemaximumvalueofadataset.(Ö>6ewMyirQFL9.Theaggregatefunctionavg(>isholistic,whereavg(>isusedtocomputetheaveragevalueofadataset.(X>kavU42VRUs10.ThedifferencebetweenK-meansandK-medoidscluste
