资源描述：
《聚类分析参考文献聚类分析文献英文翻译》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、聚类分析参考文献聚类分析文献英文翻译电气信息工程学院外文翻译英文名称：Datamining-clustering译文名称：数据挖掘一聚类分析专业:自动化姓名：班级学号：****指导教师：rjwrjwrjw译文出处：Datamining：IanH.Witten，Eibe二0—0年四月二十六日Clustering5.1INTRODUCTIONClusteringissimilartoclassificationinthatdataaregrouped・However,unlikeclassification,thegroupsarenotpredefined.Ins
2、tead,thegroupingisaccomplishedbyfindingsimilaritiesbetweendataaccordingtocharacteristicsfoundintheactualdata・Thegroupsarecalledclusters.Someauthorsviewclusteringasaspecialtypeofclassification.Inthistext,however,wefollowamoreconventionalviewinthatthetwoaredifferent.ManydeHnitionsforcl
3、ustershavebeenproposed:arenotalike.distancebetweenapointintheclusterandanypointoutsideit.Atermsimilartoclusteringisdatabasesegmentation,whereliketuple(record)inadatabasearegroupedtogether.Thisisdonetopartitionorsegmentthedatabaseintocomponentsthatthengivetheuseramoregeneralviewofthed
4、ata.Inthiscasetext,wedonotdifferentiatebetweensegmentationandclustering.AsimpleexampleofclusteringisfoundinExample5.1.Thisexampleillustratesthefactthatthatdetermininghowtodotheclusteringisnotstraightforward.AsillustratedinFigure5.1，agivensetofdatamaybeclusteredondifferentattributes.H
5、ereagroupofhomesinageographicareaisshown.Thefirstfloortypeofclusteringisbasedonthelocationofthehome.Homesthataregeographicallydosetoeachotherareclusteredtogether.Inthesecondclustering,homesaregroupedbasedonthesizeofthehouse.Clusteringhasbeenusedinmanyapplicationdomains,includingbiolo
6、gy,medicine，anthropology,marketing,andeconomics.Clusteringapplicationsincludeplantandanimalclassification,diseaseclassification,imageprocessing,patternrecognition,anddocumentretrieval.Oneofthefirstdomainsinwhichclusteringwasusedwasbiologicaltaxonomy.RecentusesincludeexaminingWeblogda
7、tatodetectusagepatterns.Whenclusteringisappliedtoareal-worlddatabase,manyinterestingproblemsoccur:naturallyfallintoanycluster.Theycanbeviewedassolitaryclusters.However,ifaclusteringalgorithmattemptstofindlargerclusters,theseoutlierswillbeforcedtobeplacedinsomecluster.Thisprocessmayre
8、sultinthecre
