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Using NLP or NLP resources for information retrieval tasks

Using NLP or NLP resources for information retrieval tasks

ID：37659628

大小：164.02 KB

页数：13页

时间：2019-05-27

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1、USINGNLPORNLPRESOURCESFORINFORMATIONRETRIEVALTASKSALANF.SMEATONDublinCityUniversityGlasnevin,Dublin9,IRELAND1.AbstractTheimactofNLPoninformationretrievaltaskshaslargelybeenoneofpromiseratherthansubstance.Whilethereareexceptionstothisassomeofthechaptersinthepresentvolumedemonstrate,forthemostpa

2、rtNLPandinformationretrievalhaveonlyrecentlystartedtodovetailtogether.InthischapterwewillpresentaprecisofourexperimentsininformationretrievalusingNLPwhichhavehadmixedsuccessoverthelastfewyears.WeintroducetherespectiverolesofNLPandIRandthenwesummariseourearlyexperimentsonusingsyntacticanalysis

3、toderivetermdepen-denciesandstructuredrepresentationsofterm-termrelationships.Wethenre-thoughttherolethatNLPcouldhaveforIRtasksanddecidedtocon-centrateoure ortsontousingNLPresourcesratherthanNLPtoolsininformationretrievalandourmorerecentexperimentsinthisareainwhichweuseWordNetaresummarised.Fin

4、allywepresentourconclusionsand1thestatusofourwork.2.IntroductionThedevelopmentoftoolsandresourcesforautomaticnaturallanguageprocessing(NLP)hasbeenongoingformanydecadesalbeitwithmanyupsanddowns.Theprincipaldrivingforcesbehindthishavebeenapplicationssuchasmachinetranslation(MT),informationmanage

5、mentandnaturallanguageinterfaces.1in:NaturalLanguageInformationRetrieval",T.Strzalkowski(Ed.),KluwerAca-demicPublishers,1997.2ALANF.SMEATONTherelationshipbetweenNLPandMThasalwaysbeenclose,perhapstooclose,andmuchofNLPresearchandtheevolutionofnaturallanguageprocessingtechniqueshasbeentailoredto

6、theMTapplication.Thismayhavebeentothedetrimentofotherapplicationareasasweshalldiscuss.TherelationshipbetweenNLPandinformationmanagementbasedoncontenthasnotbeenquiteassymbioticcomparedtoNLPandMT.Thecontent-basedmanipulationoperationswerefertoincludeindexingandretrieval,categorisation,classi cat

7、ion, ltering,andsoon.Ifwebroadlyde neinformationretrievaltobetheretrievaloftextualinformationbasedonitscontentthenweseethatNLPtoolsandtechniquesdonothaveverymuchimpactonourcurrentgenerationofinformationretrievalsystems.OperationalIRsyst

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