中文視頻問答系統(tǒng).pdf

1、燕山大學(xué)碩士學(xué)位論文中文視頻問答系統(tǒng)姓名：劉艷芳申請學(xué)位級別：碩士專業(yè)：信號與信息處理指導(dǎo)教師：丁天昌封化民20070301燕山大學(xué)工學(xué)碩士學(xué)位論文AbstractQuestionAnsweringistolocate，extract，andrepresentaspecificanswertoauserquestionexpressedinnaturallanguageandcurrentquestionansweriRgsystems

2、succeedinmanyaspensregardingtoquestionsoftextualdocumentsWiththedevelopmentoftheintemct，Inadditiontotraditionaltextmessage，multimediadatahasbecomeincreasinglyimportantdataontheweb，whichprovidesbotllopportunitiesandchalle

3、ngesforquestionansweringVideoisoneofthemosteffectiveinformationforcapturingtheeventsintherealworldOurframeworkisbasedonnewsvideoInallfeatures，transcriptisthemostimportantandmostreadilyavailablevideofeaturesMoreoverthempu

4、tofvideoquestionanswering(VideoQA)isashortquestionSOwemainemploytranscriptfeaturethatisgainedbyASlLThispaperproposesa矗ameworkforChineseVideoquestionansweringsystem_Thewholesystemconsistsofsixmodules：videosegmentationspee

5、chrecognitionquestionclassificationtranscriptretrievalanswerextractionandvideooutputButthenewstranscriptscontainnumerousspeechrecognitionerrors，SOwemanuallycorrectsomeerrorsInthemoduleofquestionclassificationweemployHowN

6、ettoimprovetheaccuracyVideoQAistoobtaintheclosevideoclips，andnotjustalongstoryunit，SOweneedtoprocessandpositiontheclosesentencestoanswertimquestionWeclaimthatthebestsemencethatanbwersthequestionshouldsatisfiedsomeconditi