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DataMining:

ConceptsandTechniques

—Chapter1—

—Introduction—JiaweiHanandMichelineKamberDepartmentofComputerScienceUniversityofIllinoisatUrbana-Champaign/~hanj©2006JiaweiHanandMichelineKamber.Allrightsreserved.5/22/20231DataMining:ConceptsandTechniques5/22/20232DataMining:ConceptsandTechniquesDataandInformationSystems

(DAIS:)CourseStructuresatCS/UIUCCoverage:Database,datamining,textinformationsystemsandbioinformaticsDataminingIntro.todatawarehousingandmining(CS412:Han—Fall)Datamining:Principlesandalgorithms(CS512:Han—Spring)Seminar:AdvancedTopicsinDatamining(CS591Han—FallandSpring.1creditunit)IndependentStudy:onlyifyouseriouslyplantodoyourPh.D.ondataminingandtrytodemonstrateyourabilityDatabaseSystems:Databasemgmtsystems(CS411:KevinChangFallandSpring)Advanceddatabasesystems(CS511:KevinChangFall)TextinformationsystemsTextinformationsystem(CS410ChengXiangZhai)BioinformaticsIntroductiontoBioInformatics(SaurabhSinha)CS591SeminaronBioinformatics(Sinha,Zhai,Han,Schatz,Zhong)5/22/20233DataMining:ConceptsandTechniquesCS412Coverage(Chapters1-7ofThisBook)ThebookwillbecoveredintwocoursesatCS,UIUCCS412:Introductiontodatawarehousinganddatamining(Fall)CS512:Datamining:Principlesandalgorithms(Spring)CS412CoverageIntroductionDataPreprocessingDataWarehouseandOLAPTechnology:AnIntroductionAdvancedDataCubeTechnologyandDataGeneralizationMiningFrequentPatterns,AssociationandCorrelationsClassificationandPredictionClusterAnalysis5/22/20234DataMining:ConceptsandTechniquesCS512Coverage(Chapters8-11ofThisBook)Miningdatastreams,time-series,andsequencedataMininggraphs,socialnetworksandmulti-relationaldataMiningobject,spatial,multimedia,textandWebdataMiningcomplexdataobjectsSpatialandspatiotemporaldataminingMultimediadataminingTextminingWebminingApplicationsandtrendsofdataminingMiningbusiness&biologicaldataVisualdataminingDataminingandsociety:Privacy-preservingdataminingAdditional(oftencurrent)themescouldbeaddedtothecourse5/22/20235DataMining:ConceptsandTechniques5/22/20236DataMining:ConceptsandTechniquesChapter1.IntroductionMotivation:Whydatamining?Whatisdatamining?DataMining:Onwhatkindofdata?DataminingfunctionalityClassificationofdataminingsystemsTop-10mostpopulardataminingalgorithmsMajorissuesindataminingOverviewofthecourse5/22/20237DataMining:ConceptsandTechniquesWhyDataMining?TheExplosiveGrowthofData:fromterabytestopetabytesDatacollectionanddataavailabilityAutomateddatacollectiontools,databasesystems,Web,computerizedsocietyMajorsourcesofabundantdataBusiness:Web,e-commerce,transactions,stocks,…Science:Remotesensing,bioinformatics,scientificsimulation,…Societyandeveryone:news,digitalcameras,YouTubeWearedrowningindata,butstarvingforknowledge!

“Necessityisthemotherofinvention”—Datamining—Automatedanalysisofmassivedatasets5/22/20238DataMining:ConceptsandTechniquesEvolutionofSciencesBefore1600,empiricalscience1600-1950s,theoreticalscienceEachdisciplinehasgrownatheoreticalcomponent.Theoreticalmodelsoftenmotivateexperimentsandgeneralizeourunderstanding.1950s-1990s,computationalscienceOverthelast50years,mostdisciplineshavegrownathird,computationalbranch(e.g.empirical,theoretical,andcomputationalecology,orphysics,orlinguistics.)ComputationalSciencetraditionallymeantsimulation.Itgrewoutofourinabilitytofindclosed-formsolutionsforcomplexmathematicalmodels.1990-now,datascienceThefloodofdatafromnewscientificinstrumentsandsimulationsTheabilitytoeconomicallystoreandmanagepetabytesofdataonlineTheInternetandcomputingGridthatmakesallthesearchivesuniversallyaccessibleScientificinfo.management,acquisition,organization,query,andvisualizationtasksscalealmostlinearlywithdatavolumes.Dataminingisamajornewchallenge!JimGrayandAlexSzalay,TheWorldWideTelescope:AnArchetypeforOnlineScience,Comm.ACM,45(11):50-54,Nov.20025/22/20239DataMining:ConceptsandTechniquesEvolutionofDatabaseTechnology1960s:Datacollection,databasecreation,IMSandnetworkDBMS1970s:Relationaldatamodel,relationalDBMSimplementation1980s:RDBMS,advanceddatamodels(extended-relational,OO,deductive,etc.)Application-orientedDBMS(spatial,scientific,engineering,etc.)1990s:Datamining,datawarehousing,multimediadatabases,andWebdatabases2000sStreamdatamanagementandminingDatamininganditsapplicationsWebtechnology(XML,dataintegration)andglobalinformationsystems

5/22/202310DataMining:ConceptsandTechniquesWhatIsDataMining?Datamining(knowledgediscoveryfromdata)Extractionofinteresting(non-trivial,

implicit,previouslyunknownandpotentiallyuseful)

patternsorknowledgefromhugeamountofdataDatamining:amisnomer?AlternativenamesKnowledgediscovery(mining)indatabases(KDD),knowledgeextraction,data/patternanalysis,dataarcheology,datadredging,informationharvesting,businessintelligence,etc.Watchout:Iseverything“datamining”?Simplesearchandqueryprocessing(Deductive)expertsystems5/22/202311DataMining:ConceptsandTechniquesKnowledgeDiscovery(KDD)ProcessDatamining—coreofknowledgediscoveryprocessDataCleaningDataIntegrationDatabasesDataWarehouseKnowledgeTask-relevantDataSelectionDataMiningPatternEvaluation5/22/202312DataMining:ConceptsandTechniquesDataMiningandBusinessIntelligence

IncreasingpotentialtosupportbusinessdecisionsEndUserBusinessAnalystDataAnalystDBADecision

MakingDataPresentationVisualizationTechniquesDataMiningInformationDiscoveryDataExplorationStatisticalSummary,Querying,andReportingDataPreprocessing/Integration,DataWarehousesDataSourcesPaper,Files,Webdocuments,Scientificexperiments,DatabaseSystems5/22/202313DataMining:ConceptsandTechniquesDataMining:ConfluenceofMultipleDisciplines

DataMiningDatabaseTechnologyStatisticsMachineLearningPatternRecognitionAlgorithmOtherDisciplinesVisualization5/22/202314DataMining:ConceptsandTechniquesWhyNotTraditionalDataAnalysis?TremendousamountofdataAlgorithmsmustbehighlyscalabletohandlesuchastera-bytesofdataHigh-dimensionalityofdataMicro-arraymayhavetensofthousandsofdimensionsHighcomplexityofdataDatastreamsandsensordataTime-seriesdata,temporaldata,sequencedataStructuredata,graphs,socialnetworksandmulti-linkeddataHeterogeneousdatabasesandlegacydatabasesSpatial,spatiotemporal,multimedia,textandWebdataSoftwareprograms,scientificsimulationsNewandsophisticatedapplications5/22/202315DataMining:ConceptsandTechniquesMu江lt分i-殃Di粪me穿ns近io绿na舞l撤Vi伸ew党o璃f组Da贤ta姓M唉in色in胖gDa贞ta棋t东o茎be池m必in和edRe帽la预ti做on闹al防,慎da急ta赛w啊ar雨eh询ou烤se声,笨tr怠an洗sa物ct牵io省na以l,护s网tr馆ea翅m,馆o搁bj屿ec立t-往or崇ie位nt胶ed钱/r哭el狂at浪io战na晚l,杂a穴ct帽iv禾e,紫s预pa跟ti夜al环,弹ti拔me陵-s让er嘱ie烛s,映t蝴ex酒t,凳m过ul谁ti孟-m谜ed治ia耗,腥he叶te厨ro化ge俯ne垫ou滥s,巧l宽eg评ac钓y,私W页WWKn刑ow谷le果dg坝e渴to驻b量e轮mi导ne没dCh六ar夏ac尖te坝ri板za姿ti练on给,罢di怎sc鱼ri芒mi呼na逗ti梢on律,溪as缸so推ci多at荒io绑n,瞧c勤la归ss静if味ic杨at告io肝n,覆c晶lu柳st短er劣in梯g,刑t垦re雄nd倚/d球ev驼ia险ti久on膨,绣ou姻tl色ie枕r致an反al味ys槽is向,生et重c.Mu侨lt然ip遇le福/i眉nt赛eg茎ra称te广d腿fu确nc残ti复on昏s些an茧d怒mi挥ni济ng糕a靠t徐mu浮lt价ip牵le驶l娱ev社el轻sTe搬ch寄ni旨qu疤es老u厦ti惠li烫ze基dDa咱ta汽ba扫se鲁-o蛋ri已en转te方d,轿d误at己a舰wa学re厨ho扭us冬e棒(O菜LA争P)轨,紧ma滴ch砖in抓e剂le早ar则ni父ng与,碑st舟at劫is过ti吹cs妨,供vi班su尖al售iz按at瞎io览n,凑e匹tc慕.Ap共pl青ic营at你io梳ns坊a砌da厕pt饱edRe管ta赖il同,总te距le欢co棵mm壮un删ic唇at曲io蛙n,牙b迟an胖ki铜ng晃,贷fr线au传d六an雾al搅ys扩is隙,徒bi化o-扛da政ta斥m溉in穿in饱g,顷s济to虾ck邮m曲ar宁ke在t钱an细al起ys粗is环,与te搭xt请m井in薄in倦g,鸣W忧eb屿m御in丑in仔g,专e球tc兄.5/铁18锻/2静02从316Da驻ta蜘M秤in垄in住g:冲C顿on请ce臂pt卵s疏an亡d发Te栗ch荡ni妨qu柿esDa方ta睛M规in意in化g:枣C罩la蔽ss朽if系ic撤at饮io誓n乎Sc从he匹me友sGe霉ne乳ra厘l滔fu敢nc惩ti麻on弱al环it煌yDe顺sc惹ri身pt持iv沿e案da灵ta摔m睡in属in倾gPr削ed眯ic糖ti筝ve托d稀at栏a碰mi夏ni枪ngDi跃ff尸er来en马t炒vi吸ew兵s撑le吊ad童t晃o狭di高ff嫂er车en批t悟cl钻as警si富fi吨ca榜ti夸on陆sDa竭tavi霜ew更:鱼Ki茄nd摩s距of属d判at丝式a拔to割b顿e犬mi策ne剃dKn蜘ow筋le待dg险evi赔ew净:讲Ki税nd拖s搭of到k盟no希wl宗ed乔ge府t苍o斗be惑d璃is骂co翼ve云re倾dMe摄th校odvi设ew宣:蛙Ki付nd祝s遥of忽t去ec懒hn花iq右ue迫s擦ut墨il煮iz氧edAp弃pl争ic捷at洁io骄nvi冤ew毒:斑Ki左nd市s落of魔a作pp嫁li泳ca鹿ti杀on胶s用ad耀ap售te狠d5/考18腊/2雪02颤317Da储ta田M缝in备in穗g:伞C侨on宗ce铜pt漂s福an爷d建Te串ch责ni粪qu痕esDa示ta绑M塔in饰in仪g:惠O何n逃Wh赖at运K龄in架ds邮o垫f揪Da宵ta起?Da堪ta斥ba障se轰-o拣ri劲en爸te搭d炸da须ta枝s引et纷s颂an骆d春ap春pl更ic叙at等io细nsRe悲la磁ti骄on微al拍d现at答ab森as按e,圣d掀at壳a休wa慰re友ho晒us跟e,面t甚ra肿ns共ac蠢ti队on待al绳d批at兴ab箱as精eAd纤va劳nc畜ed盛d析at候a烟se年ts晓a坛nd脖a跪dv抹an达ce捕d蓄ap静pl抖ic寄at矿io惭nsDa倒ta考s分tr亮ea客ms辛a老nd蓝s酸en锯so雕r搜da磁taTi构me农-s窄er若ie永s析da皆ta协,壁te拌mp辛or裁al抵d榆at举a,陪s蛇eq所ue哥nc尚e挪da束ta山(傍in恐cl暮.减bi阶o-抹se寺qu赖en贫ce亦s)St泪ru范ct启ur炒e贪da鄙ta违,北gr胀ap击hs有,桥so逼ci月al普n佛et脑wo决rk照s皆an强d芬mu仁lt我i-音li监nk涛ed逐d巨at猪aOb允je侄ct讲-r鹅el盈at龙io消na跌l旱da舞ta运ba殖se鸡sHe标te爬ro棉ge遣ne衡ou章s金da勾ta召ba屑se爆s慕an扫d裕le段ga汇cy停d左at雾ab冻as真esSp漂at阻ia段l柿da豪ta梁a柔nd诞s排pa李ti尚ot腔em赔po哑ra舍l所da展taMu赏lt绞im蚊ed膏ia学d戒at蜓ab壁as运eTe或xt绣d间at绢ab碎as需esTh殿e基Wo请rl友d-录Wi陡de炸W婶eb5/贱18容/2肺02反318Da斯ta绿M近in挎in捎g:漆C败on虎ce竭pt催s吐an笛d退Te阵ch饭ni朽qu裳esDa响ta都M埋in沉in佛g贝Fu于nc供ti藏on午al谜it正ie肢sMu桂lt眉id技im太en题si费on奥al宾c耀on把ce父pt康d猎es虚cr研ip硬ti炊on罩:顺Ch堪ar呈ac砍te渴ri缎za宅ti住on掉a芬nd傲d插is常cr芝im食in佣at叛io琴nGe甘ne冠ra型li叠ze浇,授su京mm臂ar河iz勿e,侵a森nd盒c贪on苹tr痒as傻t覆da畏ta出c捆ha封ra霞ct故er叮is略ti阵cs龟,铁e.博g.变,粱dr辫y映vs跌.风we泡t拢re赢gi杨on渴sFr孤eq卸ue全nt渠p圈at句te达rn蹦s,猴a红ss钥oc疗ia材ti哨on催,择co着rr厚el院at躺io投n瞒vs混.魂ca伟us购al堂it坡yDi击ap想erBe立er滋[舱0.谨5%摊,科75逮%]帆(C坛or将re织la雨ti阀on嫌o赤r圆ca停us撒al文it坊y?诞)Cl舞as盛si拳fi蔬ca静ti寇on员a沉nd积p姥re碰di参ct项io圣nCo攀ns耽tr屠uc疯t笔mo鼻de汇ls冈(钞fu贡nc稀ti娇on魔s)兔t蔽ha膨t奶de酱sc施ri妙be择a挪nd版d毙is尘ti夺ng松ui撞sh宰c悟la爬ss资es副o更r株co寒nc撞ep押ts买f趴or灾f判ut也ur拘e态pr险ed伟ic毁ti著onE.福g.爽,勤cl矛as乒si静fy确c皇ou吓nt韵ri竭es童b徒as哈ed雾o绍n提(c城li里ma魂te潮),自o愚r存cl助as耗si且fy腾c栗ar乖s旁ba连se存d族on森(沟ga哄s磁mi思le跨ag年e)Pr淘ed乏ic签t父so秀me纵u箱nk燥no冷wn案o镜r鞭mi呆ss耀in砍g抄nu速me责ri屠ca拣l那va振lu鞭es5/庆18计/2爆02晃319Da瓶ta朴M洁in犁in搁g:亦C膏on摄ce毛pt淘s目an售d叉Te沿ch坑ni帮qu久esDa蔽ta允M神in骗in嘉g恋Fu幼nc掩ti疾on续al瞧it劲ie辈s收(2宜)Cl两us紧te帽r阅an本al珠ys奶isCl禽as筝s须la拌be照l掉is闭u帖nk郑no屠wn葬:童Gr恨ou梁p焦da齐ta啊t缸o织fo宇rm信n燥ew肯c而la招ss即es模,耕e.助g.胜,尊cl昌us啦te盯r辨ho蛮us泰es旱t丽o叠fi盗nd塑d鸦is梨tr垄ib食ut逐io拾n皱pa恋tt援er骑nsMa衣xi鉴mi良zi探ng狠i伏nt搞ra养-c逮la蔽ss射s脂im详il圾ar较it所y茎&脾mi聪ni强mi赖zi珍ng泼i景nt沈er索cl招as绕s艘si贵mi过la滑ri洁tyOu轻tl锋ie瓦r淘an饮al霜ys片isOu原tl役ie摔r:辈D却at它a艺ob浮je龄ct装t古ha别t瘦do始es梁n场ot漆c雅om涝pl吗y咏wi付th纽奉t院he蔑g添en峡er争al雾b抓eh增av弃io途r砖of政t哗he呢d迅at筒aNo遮is昨e精or炸e蠢xc抽ep林ti酷on浓?品Us危ef超ul著i子n静fr缠au卧d当de悔te答ct督io膀n,腰r助ar泛e沃ev晓en老ts日a闲na艇ly窜si停sTr球en野d系an朱d兔ev源ol事ut恳io畅n忆an土al探ys舍isTr词en纯d宪an缘瑞d稀de彼vi宫at炮io妈n:润e站.g祥.,轨r脊eg顺re盾ss穴io招n逆an剪al侦ys竟isSe限qu凭en绕ti臂al回p纷at冬te醒rn注m鞭in煮in乐g:盟e柄.g舒.,困d狐ig基it树al四c妈am摸er柴a途la刊rg车e设SD捆m散em础or镜yPe侄ri剩od颠ic锄it比y皱an政al队ys挠isSi奇mi饿la的ri晕ty熄-b叫as妻ed好a膛na倒ly众si裤sOt壶he犯r陕pa未tt颤er福n-茂di滑re门ct阴ed倍o薯r撕st扑at袋is推ti汪ca裕l训an拍al弦ys眠es5/鲜18概/2衡02是320Da业ta帅M帝in茅in现g:击C抛on什ce霞pt黄s绳an弦d怖Te燥ch屋ni泊qu妹esTo盛p-绞10郑M腰os骂t对Po档pu蹈la陈r鹿DM敌A讽lg膛or次it杂hm唐s:骡1牺8馒Id初en览ti斑fi慢ed引C妻an旷di蠢da抗te这s穴(I威)Cl轻as座si绩fi百ca漂ti早on#1膏.章C4忆.5践:舒Qu屈in短la蛮n,根J摊.忽R.逢C优4.扣5:崭P对ro爬gr悦am辈s款fo什r平Ma煮ch看in伤e遮Le堵ar自ni幼ng痰.虹Mo袋rg均an刻K测au源fm野an林n.矛,偷19凶93畏.#2苍.衡CA闸RT琴:访L.Br捧ei态ma展n,著J.孤F桌ri肚ed摔ma歇n,谷R叔.Ol某sh絮en,庭an哀d虹C.所S洲to迈ne结.索Cl韵as甜si刃fi俯ca稳ti妖on咏a扁nd能R搞eg倦re笑ss记io瞧n唱Tr回ee滩s.时W换ad栏sw场or誓th竟,型19匙84悦.#3吧.车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