Text Mining - Predictive Methods for Analyzing Unstructured Information,Weiss ,2005

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1、TextMiningSholomM.WeissNitinIndurkhyaTongZhangFredJ.DamerauTextMiningPredictiveMethodsforAnalyzingUnstructuredInformation~SpringerSholomM.WeissNitinIndurkhyaIBMResearchSchoolofComputerScienceandEngineeringTJWatsonLabsUniversityofNewSouthWalesYorktownHeights)NY1

2、0598Sydney)NSW2052USAAustraliasholom@us.ibm.comnitin@data-miner.comTongZhangFredJ.DamerauIBMResearchIBMResearchTJWatsonLabsTJWatsonLabsYorktownHeights)NY10598YorktownHeights)NY10598USAUSAtongz@us.ibm.comdamerau@sbcglobal.netISBN0-387-95433-3Printedonacid-freepa

3、per.©2005SpringerScience+BusinessMedia)Inc.Allrightsreserved.Thisworkmaynotbetranslatedorcopiedinwholeorinpartwithoutthewrittenpermissionofthepublisher(SpringerScience+BusinessMedia)Inc.,233SpringStreet)NewYork)NY10013)USA))exceptforbriefexcerptsincon-nectionwi

4、threviewsorscholarlyanalysis.Useinconnectionwithanyformofinfor-mationstorageandretrieval)electronicadaptation)computersoftware)orbysimilarordissimilarmethodologynowknownorhereafterdevelopedisforbidden.Theuseinthispublicationoftradenames)trademarks)servicemarks)

5、andsimilarterms)eveniftheyarenotidentifiedassuch)isnottobetakenasanexpressionofopinionastowhetherornottheyaresubjecttoproprietaryrights.PrintedintheUnitedStatesofAmerica.(MP)987654321SPIN10864579springeronline.comPrefaceDataminingisamaturetechnology.Thepredicti

6、onproblem,lookingforpredictivepatternsindata,hasbeenwidelystudied.Strongmeth-odsareavailabletothepractitioner.Thesemethodsprocessstructurednumericalinformation,whereuniformmeasurementsaretakenoverasampleofdata.Textisoftendescribedasunstructuredinformation.So,it

7、wouldseem,textandnumericaldataaredifferent,requiringdifferentmethods.Orarethey?Inourview,apredictionproblemcanbesolvedbythesamemethods,whetherthedataarestructurednu-mericalmeasurementsorunstructuredtext.Textanddocumentscanbetransformedintomeasuredvalues,suchast

8、hepresenceorabsenceofwords,andthesamemethodsthathaveprovensuccessfulforpredic-tivedataminingcanbeappliedtotext.Yet,therearekeydifferences.Evaluationtechniquesmustbeadaptedto