受限領域中文情感問答系統(tǒng)研究

1、大連理工大學碩士學位論文受限領域中文情感問答系統(tǒng)研究姓名：唐琴申請學位級別：碩士專業(yè)：計算機應用技術指導教師：林鴻飛20081201大連理工大學碩士學位論文ResearchonChineseSentimentalQuestionAnsweringintheRestrictedDomainAbstractWiththeexplosionofinformationthevastavailableinformationmakesitallmt

2、mctiveresourceforansweringavarietyofquestionsthatusersmayhaveTraditionalsearchenginesreturnalistofrelevantdocumentsbutnottheexactanswers，andusersoftenengageinperusingrelevantinformationthattheyneedmanuallyToovercomethese

3、shortcomings，moreandmoreresearchorganizationsandcompaniesdoeffortstoexplorenewgenerationofinformationretrievalsystemsOneofthemostimportantdirectionsisQuestionAnswering(QA)systemPresently，manyscientificresearchinstitutesh

4、avebeeninvestigatedfactoidquestionsfrequently—askedquestions(FAQ)，somematurequestionansweringsystemshavebeenwidelyrecognizedHoweverrelativelylittlestudyhasbeendoneonopinionorsentimentalquestionansweringItcannotbeneglecte

5、dthatpeoplewouldalsoliketoknowaboutotherpeople’Semotionthought，opinionstowardsparticulartopicsorcelebritiesWefindthatpeopleliketoknowfocalfigures’preferencesandotherpeople’SopinionsaboutthemInthispaper’theresearchofsenti

6、mentalQAwasconcentratedonentertainmentfocalfigures’preferencesandthepublic‘sfeelingsoropinionsaboutthemSentimentalquestionansweringhastodealwiththeopinionholders，polarityandotherfactorsrelatedtosentimentanalysiscomparedt

7、ofactualquestionansweringAgreatnumberofsentimentalquestionshavebeencollectedfrominternet，andthemodelofChunk—CRFandheuristicrulesareappliedtoclassifythemintofivetypesbasedontheemotionalfeaturesofquestionsTheclassification

8、methodisdifferentfromthefactualquestionclassificationwhichismainlybasedoninterrogativewords，andithastotakeopinionsandresponsesfromusersintoaccountCombinedwithpolarityandrecognitionresultsofChunkCRF，differentanswersareext