实体关系提取

《实体关系提取》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ᅲԧ݇㋏㞾ࡼᢑপ䔺ϛ㖨ˈ߬ᤎˈᴢ⫳˄જᇨⒼᎹϮ໻ᄺ䅵ㅫᴎᄺ䰶ˈજᇨⒼ150001˅ᨬ㽕˖ᅲԧ݇㋏ᢑপᰃᙃᢑপ乚ඳЁⱘ䞡㽕ⷨお䇒乬DŽᴀ᭛Փ⫼ϸ⾡෎Ѣ⡍ᕕ৥䞣ⱘᴎ఼ᄺдㅫ⊩ˈWinnow੠ᬃᣕ৥䞣ᴎ˄SVM˅ˈ೼2004ᑈACE˄AutomaticContentExtraction˅䆘⌟ⱘ䆁㒗᭄᥂Ϟ䖯㸠ᅲԧ݇㋏ᢑপᅲ偠DŽϸ⾡ㅫ⊩䛑䖯㸠䗖ᔧⱘ⡍ᕕ䗝ᢽˈᔧ䗝ᢽ↣ϾᅲԧⱘᎺেϸϾ䆡Ў⡍ᕕᯊˈ䖒ࠄ᳔དⱘᢑপᬜᵰˈWinnow੠SVMㅫ⊩ⱘࡴᴗᑇഛF-Scoreߚ߿Ў73.08%੠73.27%DŽৃ㾕೼Փ⫼Ⳍৠⱘ⡍ᕕ䲚

2、ˈϡৠⱘᄺдㅫ⊩䖯㸠ᅲԧ݇㋏ⱘ䆚߿ᯊˈ᳔㒜ᗻ㛑Ꮒ߿ϡ໻DŽ಴ℸՓ⫼㞾ࡼⱘᮍ⊩䖯㸠ᅲԧ݇㋏ᢑপᯊˈᑨᔧ䲚Ё㊒࡯ᇏᡒདⱘ⡍ᕕDŽ݇䬂䆡˖ᅲԧ݇㋏ᢑপ˗ACE䆘⌟˗⡍ᕕ䗝ᢽ˗Ё೒ߚ㉏ো˖TP391᭛⤂ᷛ䆚ⷕ˖AAutomaticEntityRelationExtractionWanxiangChe,TingLiu,ShengLi(SchoolofComputerScienceandTechnology,HarbinInstituteofTechnology,Harbin150001)Abstract:Entity

3、RelationExtractionisanimportantresearchfieldinInformationExtraction.Twokindsofmachinelearningalgorithms,WinnowandSupportVectorMachine(SVM),wereusedtoextractentityrelationfromthetrainingdataofACE(AutomaticContentExtraction)Evaluation2004automatically.Both

4、ofthealgorithmsneedappropriatefeatureselection.Whentwowordsaroundanentitywereselected,theperformanceofthebothalgorithmsgotthepeak.TheaverageweightedF-ScoreofWinnowandSVMalgorithmswere73.08%and73.27%respectively.Wecanconcludethatwhenthesamefeaturesetisuse

5、d,theperformanceofdifferentmachinelearningalgorithmsgetlittledifference.Soweshouldpaymoreattentiontofindbetterfeatureswhenweusetheautomaticlearningmethodstoextracttheentityrelation.Keywords:entityrelationextraction;ACEevaluation;featureselection;෎䞥乍Ⳃ˖ᴀ᭛ফ

6、ࠄ೑ᆊ㞾✊⾥ᄺ෎䞥˄60435020˅䌘ࡽDŽ԰㗙ㅔҟ˖䔺ϛ㖨˄1980-˅ˈ⬋ˈ咥啭∳Ҏˈम຿ⷨお⫳ˈЏⓨⷨお乚ඳЎ㞾✊䇁㿔໘⧚ˈᙃẔ㋶ϔǃᓩ㿔䱣ⴔ䅵ㅫᴎⱘ᱂ঞҹঞѦ㘨㔥ⱘ䖙⣯থሩˈ໻䞣ⱘᙃҹ⬉ᄤ᭛ᴀⱘᔶᓣߎ⦄೼ҎӀ䴶ࠡDŽЎњᑨᇍᙃ⟚⚌ᏺᴹⱘᣥ៬ˈ䖿ߛ䳔㽕ϔѯ㞾ࡼ࣪ⱘᎹ݋ᐂࡽҎӀ೼⍋䞣ᙃ⑤Ё䖙䗳ᡒࠄⳳℷ䳔㽕ⱘᙃDŽᙃᢑপ˄InformationExtraction˅ⷨおℷᰃ೼䖭⾡㚠᱃ϟѻ⫳ⱘDŽᙃᢑপⱘЏ㽕Ⳃⱘᰃᇚ᮴㒧ᵘⱘ᭛ᴀ䕀࣪Ў㒧ᵘ࣪៪ञ㒧ᵘ࣪ⱘᙃˈᑊҹ᭄᥂ᑧⱘᔶᓣᄬټˈկ⫼᠋ᶹ䆶ҹঞ䖯ϔℹߚᵤ߽⫼DŽᙃ

7、ᢑপ㋏㒳ⱘЏ㽕ࡳ㛑ᰃҢ᭛ᴀЁᢑপߎ⡍ᅮⱘџᅲᙃˈ៥Ӏ⿄ПЎᅲԧ˄Entity˅DŽ՟བ˖ᯊ䯈˄TIME˅ǃ㒘㒛ᴎᵘ˄ORG˅ǃҎ⠽˄PER˅ҹঞ℺఼˄WEAPON˅ㄝㄝDŽ✊㗠ˈ೼໻໮᭄ⱘᑨ⫼ЁˈϡԚ㽕䆚߿᭛ᴀЁⱘᅲԧˈ䖬㽕⹂ᅮ䖭ѯᅲԧП䯈ⱘ݇㋏ˈ៥Ӏ⿄݊Ўᅲԧ݇㋏ᢑপDŽϢᅲԧᢑপ㉏Ԑˈᅲԧ݇㋏ⱘ㉏ൟгᰃ乘ܜᅮНⱘˈ՟བ˖ഄ⧚ԡ㕂݇㋏˄PHYS˅ǃ䲛Է݇㋏˄EMP-ORG˅ㄝㄝDŽ؛䆒᭛ᴀЁᦤࠄ¯Ă㕢೑㄀ϗ㠄䯳ৌҸĂāˈ݊Ё¯㕢೑㄀ϗ㠄䯳ৌҸā੠¯㕢೑㄀ϗ㠄䯳āߚ߿ЎҎ⠽˄PER˅੠㒘㒛˄ORG˅ᅲԧDŽ㗠ᅗӀ

8、জᵘ៤њϔ⾡䲛Է݇㋏˄EMP-ORG˅ˈे¯㕢೑㄀ϗ㠄䯳ৌҸāফ䲛Ѣ¯㕢೑㄀ϗ㠄䯳āDŽ䗮䖛ҹϞҟ㒡ˈ៥Ӏথ⦄བᵰ䇈ᙃᢑপⱘЏ㽕ࡳ㛑ᰃ㞾ࡼᇚ᭛ᴀ䕀࣪Ў᭄᥂㸼Ḑˈᅲԧᢑপ⹂ᅮњ㸼ḐЁ৘Ͼܗ㋴ⱘ䆱ˈᅲԧ݇㋏ᢑপ߭ᰃ⹂ᅮ䖭ѯܗ㋴೼㸼ḐЁⱘⳌᇍԡ㕂DŽৃ㾕ˈᅲԧ݇㋏ᢑপᰃᙃᢑপЁⱘ䞡㽕⦃㡖DŽ䖥ᑈᴹˈ䱣ⴔᅲԧᢑপⷨお䗤ℹᅲ⫼࣪ˈᅲԧ݇㋏ᢑপⱘⷨおг䍞ᴹ䍞ফࠄҎӀⱘ䞡㾚DŽ݊Ё㕢೑೑䰆催㑻ⷨお䅵ߦྨਬӮ˄DARPAˈtheDefenseAdvancedRes