言語処理学会 第20回年次大会 発表論文集 (2014年3月)

Ͼયԡɟʝ௟ඕ‫ګ‬ʌʂ஦֛ഓ‫ڽ‬ɥஂ‫ظ‬ඖฌʾˀˍ˧भஆ‫܋‬ट຾෱ࡶ࠾๊੄‫ۍ‬૴୉‫ٴ‬Ϸ୉ࢮ෗Lhh ʺ˦ˬ˒ʸƟʾˮ˺ѕӁԷ৐٥֋ࡿ
bm/Q?XFibm?BiQ!H#XMiiX+QXDT%$Ҟ์ ඕۣɻʃƅϾ‫ګ‬Ɖય܎‫ګ‬Ɖԡ܎‫ګ‬ʂ஦֛ഓʦ௟ඕ‫ګ‬ɿඖฌɭʟʾˀˍ˧ɿɸɘɺൎ‫܍‬ɭʟƆඕʾˀˍ˧ʃƅ஫ߢɿ࠴ࡍɫɳ੒Ց෦஦֛਻ฌʺƟ˘ˀʦๆɘɳஂ‫ظ‬ඖฌʾˀˍ˧ɻɖʞƅ஦֛ഇฅɿ଱Ыɩɯɳਪ‫آګٿ‬ੁ৔ѽॾƉΜਣۚਏѽॾɼɱʠɿԷɹɣஂ‫ګ‬ଯߏঽഝʍ੃ɜʦ۱ɚƭԡ܎‫ګ‬ʦ࢑ɣƮɧɼʦ஦૎ɼɭʟƆ

R # 

%$ %$ ʃɬʕɿ"&#үࠦ‫׋ޓ‬ɿɞɥʟ܎‫ݘ‬ଯ֨৵ʃ‫ٶ‬ɫɩʦਊɫɺɞʞƅҙ܎ɿɞɥʟՠࡦஓ‫ڽ‬ʘ஦֛ଘࣹड़ʂ૛ܵƅɖʟɘʃҙ܎ʌʂ஦֛ࡥԱɾɽɿɞɘɺඖฌʃ೑я‫و‬ɼɾʞɸɸɖʟƆ஦ɿ૛ܵෳଯɻ੒ຟʂഓ٤ʦΆɚʜɚɾࣟ‫܄‬ɿɞɘɺʃಐๆʘߗԝ୾ʂ෣ɻՆҌඖฌɠย൷ɻɖʞƅɭɻɿਪɣʂඖฌʾˀˍ˧Ɖ˄˜ˏʭʮʩɠ౭థɩʠɺɘʟƆɧɚɫɳʖʂʂਪɣʃߤࢆʘඖฌՑ਒ʦञࠡɻۚતɭʟՑ਒ˠƟˀඖฌɿԷɹɣʖʂɻƅૠ௰ɿʣɳʞय़ಖɩʠɺɡɳʖʂɻɖʟƆՆҌඖฌʂՠࡦஓ‫ڽ‬ʦ٪ʟɼƅɧʂ Ry ௰ʏɽʂԝɻஂ‫ظ‬ඖฌՠࡦɠփਙɿ౎ଽɫƅЯഡʦયअɿ‫ۊ‬ɣ߹ๆшɠछʧɻɘʟƆλ൘ƅ௟ඕɿɞɘɺʃƅ௟ඕ‫ګ‬ɠϾ‫୾ګ‬ʂ਩ࠞ์‫ګٿ‬ɼʂ‫ګ‬ᆹଯƉஂ‫ګ‬ଯܴΪɠ੒ɡɘɧɼɿՔχɫɺஂ‫ظ‬ඖฌʂड़௾‫ࣘڽ‬ɠछʧɻɘɾɟɷɳƆɫɟɫ‫פ‬௰ʂՠࡦछଽɿʜɷɺƅ‫ݭ‬௰ʂ܎‫ݘ‬Ѽթ Lh*A_ʂϾ௟஦֛ඖฌˆˀʶ (R) ʂञࠡ಻ьɿɞɘɺಫࠋʝʂஂ‫ظ‬ඖฌʾˀˍ˧ɠՑ਒ˠƟˀඖฌʾˀˍ˧ʦࣘѾʟٌїʦ੬ढ़ɭʟɿ߃ɷɳ (k)Ɔಫࠋʝʃɧʠʒɻʂ‫ګٿ‬ѽॾʘஂ‫ظ‬ඖฌʂગ٪ɿԷɹɡƅϾ‫ګ‬Ɖય܎‫ګ‬Ɖԡ܎‫ګ‬ʂ஦֛ഓʦ௟ඕ‫ګ‬ɿඖฌɭʟஂ‫ظ‬ඖฌʾˀˍ˧ʦۚતɫɳƆඕʾˀˍ˧ʃʒɮ௡ຢഓʂ‫ګٿ‬ѽॾƭ੺‫ګ‬ഇӍƉೇ߅೒ิƉΜਣۚਏѽॾƮʦ۱ɘƅѽॾٌїɿԷɹɣஂ‫ګ‬ଯߏঽഝʍ੃ɜʦ޵ɫɳ‫ڤ‬ƭԡ܎‫ګ‬ʦ࢑ɣƮƅஂ‫ظ‬ඖฌɿʜɷɺ௟ඕ‫ګ‬ɿƆஂ‫ظ‬ඖฌɿ಩์ɾ਻ฌʺƟ˘ˀʃƅ௟ඖฌɭʟƭयRƮඕɼү܎ʂঢ়൘ɿࡥԱɩʠɳ஦֛ɟʝ࠴ࡍɫɳƆʒɳƅ஦֛ഓʂ‫ګٿ‬ѽॾɿ਻ЫɭʟɳʕƅՂਣʂ‫ګٿ‬ѽॾ।ѽʺƟ˘ˀɿюɜƅ஦֛ഓʦ਻࣐ɼɫɳ।ѽʺƟ˘ˀʦईɳɿ‫ݩ‬ढ़ɫƅ‫ګٿ‬ѽॾʦ஦֛ഇฅɿ଱ЫɩɯɳƆஂ‫ګ‬ଯߏঽഝʍ੃ɜɿɸɘɺʃࠞߤ‫ڤ‬ટഝʍ੃ɜ (j) ʦΜਣۚਏɿ਻ɫɺ଱ๆɭʟɳʕʂұૌʦ۱ɷɳƆΙчඕۣɻʃɧʠʝʂՠࡦɿɸɘɺࡧʍʟɼɼʖɿƅү܎‫ګ‬ɟʝ௟ඕ‫ګ‬ʌʂ஦֛ഓඖฌ߹‫ٲ‬ʂٌїʦߟɭƆ"

यRk!"



*'!()

+ඕʾˀˍ˧ʂ੒ʒɟɾۚढ़਻ฌഓ਻Ы೒ɥஂ‫ظ‬ඖฌʂ३୞‫ࣘڽ‬ɿʃࡒഇɾຟʂ਻ฌʺƟ˘ˀɠ಩์ɻɖʟƆLh*A_ ஦֛ඖฌˆˀʶ (R) ɻʂӁࡁๆ਻ฌʺƟ˘ˀʂՑ෦ʃƅϾ௟ɻช jky ඵഓƅયϾɻช RyyඵഓɻɖɷɳƆɧʠɼஔ୾ଟ୞Ιࣘʂ਻ฌʺƟ˘ˀʂ‫ݩ‬ढ़ʂɳʕƅү܎ɿࡥԱɩʠɳ஦֛ࡥԱഓࢆʦๆɘɺ਻ฌഓʂ਻Ы೒ɥɼળࡥʦ۱ɷɳƆkXR ഓࢆ੺Λ਻Ы೒ɥ஦֛ʃஔ୾ʂ௅฻ɻ೾ॅʂ܎ɿࡥԱɩʠʟɧɼɠɖʞƭ˘ˍ˺ˏ˜ʨ˦˱ƟƮƅɱʠʝʃʏʐ਻ฌɼɾɷɺ
ɘʟɼՃਿɻɡʟƆLh*A_ ʂ஦֛਻ฌʺƟ˘ˀʖ˘ˍ˺ˏ˜ʨ˦˱ƟɿԷɹɘɺ਻Ы೒ɥʝʠɳʖʂɻɖʟ(9)Ɔඕʾˀˍ˧ɿɞɘɺʖƅ˘ˍ˺ˏ˜ʨ˦˱Ɵɿԥʒʠʟ஦֛ʂบগ١ࠞૌࣣൎƭ਩܎ɻগɿࡥԱɫɳ஦֛ʌʂ‫ࢻދ‬ƮɿԷɹɡƅλ൘ɠ਩൘ʦบগ١ࠞૌɫɺɘʟࡥԱƅʖɫɣʃ੓‫܎މ‬ʂஔλʂࡥԱɿ਻ɫɺบগ١ࠞૌʦɫɺɘʟࡥԱʦ਻Ы೒ɥɳƆ೾ॅʂ஦֛ஔާɠ਻Ыɭʟࣟ‫܄‬ʃ‫ڃ‬Ɯʂ਻ฌഓ਻Ы೒ɥɠ‫ܟ‬௔ɻɖʟɳʕƅR,R ɿ਻Ыɭʟ஦֛ࡥԱഓࢆ਻ʂʓʦๆɘɳƆkXk ೱഇۚਏ਻Ы೒ɥഓࢆ਻ʂયɻ਻ฌഓ‫ڴ‬ിʦ੾ɭ‫ݘ‬ɿƅഓࢆ௅ʂഓʂɭʍɺʂ৕ʓ‫܄‬ʣɯɿ਻ɫɺ਻ฌɟ౼ɟʦ౜ઐɭʟɧɼʃ‫ޔظ‬ຟƉ३୞ʂຑ෣ɻ฻ΦɻʃɾɘƆɱɧɻƅ‫פ‬௰ʂ sJG ‫ߧآ‬ʂ஦֛ഓࢆɿ೒ิɩʠɺɘʟഓࢆۚਏ

― 606 ―

Copyright(C) 2014 The Association for Natural Language Processing.
All Rights Reserved.ࣣൎƭƽ౎෗ʂ෕ࣁƾƅƽ౎෗ʦ߹޵ɭʟɳʕʂ‫ੁآ‬ƾ୾ɿ৷୻Ʈɻʒɮೱഇଯɾۚਏʦ਻Ы೒ɥƅഓ਻Ы೒ɥʂ‫ޔظ‬ຟʦ‫ٹݪ‬ɭʟɼɼʖɿ३୞‫ࣘڽ‬ʦयɷɳƆ(9) ɻʃ sJG шɩʠɺɘɾɘ௰੐ʂഓࢆʦΆɷɺɘɳɧɼʖɖʞƅ˘ˆƟ˺˥ˊˈɿʜɷɺƹ౎෗ʂ࣏‫ݔ‬ɾՒࡧƺƹ౎෗ʂఙ‫ث‬ƺʂѠࡿʂʓʦࠟʞࡥɫɺɘʟɠƅඕʾˀˍ˧ɻʃ sJG ɻˆʷ೒ɥɩʠɳೱഇۚਏɭʍɺɿ਻ɫɺ਻Ы೒ɥʦ۱ɘ R ƅɱʂ਩ʂѠࡿɿɞɘɺʖ਻ฌഓ਻Ы೒ɥʦ۱ɷɺɘʟƆkXj ઓ๣Ɖഓ਻Ы೒ɥஔ୾ʂೱഇۚਏʂયɻ਻ฌഓɠਣ‫ݚ‬ɭʟࣟ‫܄‬ɿʃƅ࠵രʂഓʖԥʕɳઓ๣ʂ੺Λɻʖ਻ฌɼɾɷɺɘʟɧɼ
ɠՃਿɻɡʟƆ(9) ʖஔโʂ۪ɜ൘ɿԷɹɘɺઓ๣੺Λʂ਻Ы೒ɥɼഓ੺Λʂ਻Ы೒ɥʦ‫ڞڱ‬ɿ߹۱ɭʟɧɼɻഓ਻Ы೒ɥʂ३୞‫ࣘڽ‬ʦयɷɺɘʟƆඕʾˀˍ˧ɻ
ʖϾ௟਻ฌɿɸɘɺʃ (9) ɼஔโʂ൘൚ɻઓ๣Ɖഓ਻Ы೒ɥʦ۱ɷɳƆય௟Ɖԡ௟ɿɸɘɺʃ (8) ɼஔโʂഓ਻Ыˀʺʩɿƅઓ๣௅ʂഓ਻Ыˀʺʩʂച‫ה‬ʦࣛ‫ޔ‬ɫɺ݂࠿ଯɾഓ਻ЫˀʺʩɼɫɺๆɘɳƆഓ਻Ыˀʺʩʂ‫ޔظ‬ɿʃƅࡓ๝ๆɘʝʠɺɡɳ੺‫਻ګ‬ฌߤࢆɿюɜƅ௟ඕ‫ګ‬ʂԈߓɼય܎ʂԑਹߓʂ਻Ы಺ʘƅஂ‫ظ‬ඖฌ˩ˎ˲ɻ๭ๆɭʟߢஓ੺‫਻ګ‬Ы೒ɥɿԷɹɣҷ๻ଯ੺‫਻ګ‬ฌߤࢆʖ๭ๆɫɳƆ
kX9 ਻ฌഓ਻Ы೒ɥɿʜʟ਻ฌഓળࡥٌї஦֛਻ฌഓʂ࠴ࡍʂɳʕƅഡ܎Ɖય܎Ɖԡ܎ʂ‫ڷ‬Ҕ஦֛‫ڷ‬ൎɼ௟ඕ܎‫ڷ‬Ҕ஦֛‫ڷ‬ൎʦๆɘɺ k ࣘɿࡧʍɳ਻ฌഓ਻Ы೒ɥʦ۱ɷɳƆ಺Rɿ๭ๆɫɳ R,R ɿ਻Ыɭʟ஦֛ࡥԱഓࢆॅɼƅணʝʠɳ਻ฌഓ਻ʂॅʦߟɭƆϾ௟ʂ਻ฌʺƟ˘ˀɿɸɘɺʃ Lh*A_ ӁࡁʺƟ˘ˀUช jky ඵഓV ɼʏʐஔ୾ʂՑ෦ɼɾɷɳɠƅΙчʂ୅ɻ Lh*A_ ʺƟ˘ˀɼʃΪɾɷɺɘʟƆÇ ഓ٤௰੐ʂβɘ, Lh*A_ ʺƟ˘ˀʃ RNNj@kyy8௰ʂ‫ڷ‬Ҕ஦֛‫ڷ‬ൎɿԷɹɘɺɘʟƆÇ ˘ˍ˺ˏ˜ʨ˦˱ƟʂΆɘʂβɘ, Lh*A_ ʺƟ˘ˀʃ௟ඕʌࡥԱɩʠɳ஦֛ɿ਻ɫɺบগ١ࠞૌɫɺɘʟഡ܎ࡥԱ஦֛ʂʓʦๆɘɺɘʟƆÇ ഓ਻Ы೒ɥ਻࣐ʂβɘ, Lh*A_ ʺƟ˘ˀʃƹ౎෗ʂ࣏‫ݔ‬ɾՒࡧƺƹ౎෗ʂఙ‫ث‬ƺɿ‫ځ‬ɷɺ۱ɷɺɘʟƆj‫ګٿ‬ѽॾඕʾˀˍ˧ʂ‫ګٿ‬ѽॾೱʃƅ‫ݔ‬ഇшɭʟɼഓഇӍƅ੺‫ګ‬ഇӍƅೇ߅೒ิƅΜਣۚਏѽॾʂ 9 ɸʂʼ˝ˆˀʶɻۚढ़ɩʠɺɘʟƆɧʠʃƅ१ˍʴˀˏɠ௡ຢɩʠɳ‫ݘ‬ɿƅߏঽഝʍ੃ɜ‫ؠ‬ඖฌʦ۱ɚɳʕɿ಩์ɾ‫ګٿ‬ѽॾʂ݂ࢡۚढ़์৔ɼਕɜʟɧɼɠɻɡʟƆɧʠʝʂ 9 ɸʂʼ˝ˆˀʶʃƅഓഇӍƅ੺‫ګ‬ഇӍƅೇR ɳɴɫƅഡ܎஦֛ɿɞɘɺʃ sJG ɿʜʟۚਏшɠɖʒʞӑๆɩʠɺɞʝɮƅϾ௟ԝɻʃ৓ɘ਻Ы೒ɥʦ۱ɚɿຄʒɷɳk ഡ܎ʃ kyy9@kyRk ௰ƅય܎ʃ kyyd@kyRR ௰ƅԡ܎ʃ kyy8@kyRR௰ƅ௟ඕʃ kyy9@kyRR ௰ʂ‫ڷ‬ൎʦ๭ๆƆ

಺R ਻ฌഓ਻Ы೒ɥɿๆɘɳ R,R ਻Ыʂ஦֛ࡥԱഓ
ࢆॅɼ਻Ы೒ɥɩʠɳ਻ฌഓ਻ॅ‫਻ګٿ‬R,R ਻Ыഓࢆॅ਻ฌഓ਻ॅ

Ͼ௟

RRd-eky
RR8-ej939-9dej-e9k-83j
N-j38-dedk-R8N-3kRય௟ԡ௟಺k ‫ګٿ‬ѽॾ˩ˎ˲ๆؒ໐ˎƟˆʂഓॅƅ੺‫ॅګ‬ƅɞʜʇƅ˜ʨʫ˲ʼʫˁ U6a- #vi2bVָޮɖʞָޮɾɫईഔ஦֛ईഔ ஦֛‫ ګٿ‬ഓॅ ੺‫ ॅګ‬6a ഓॅ ੺‫ ॅګ‬6a 6a 6aϾ j8E RXyJ eJ RyE yXkJ RJ k9: yXkh
ય jRE yXdJ 8J j8E RXkJ dJ

N: yXRh
ԡ 8kE RXdJ RNJ RkE yXeJ eJ ě ě߅೒ิɼɘɷɳƅɘʣʚʟ‫ذ‬ໆ˰ˠ˱˺ʷ෻੕ɼɫɺ
଑ߧшɻɡʟʼ˝ˆˀʶɼƅ෱ۚਏาਗ෻੕ɼɫɺ଑
ߧшɩʠʟΜਣۚਏѽॾʼ˝ˆˀʶʂ k ࠦຳʂ෻੕ɼ۪ɜʟɧɼɠɻɡʟƆɱɧɻƅඕʾˀˍ˧ɻʃƅ‫ذ‬ໆ˰ˠ˱˺ʷ෻੕ɼʓɾɯʟ j ɸʂʼ˝ˆˀʶʃƅഓ٤ (e)ʂஔߗѽॾ൚ʦๆɘɺλӐࡽ๲ʦ۱ɚƆʒɳƅΜਣۚਏѽॾʃƅഓ٤ (d) ʂ k ߘΜਣ‫ؙ‬ʞࠬɥѽॾ˩ˎ˲ʦๆɘɺΜਣ෱ʦาਗɭʟƆjXR ईഔˎƟˆɼ஦֛ˎƟˆʂ‫܄ܩ‬ɿʜʟӁࡁ஦֛ๆ‫ګٿ‬ѽॾ˩ˎ˲ʦۚતɭʟʂɿ๭ๆɫɳؒ໐ˎƟˆʦ಺kɿߟɭƆؒ໐ˎƟˆɿʃƅ।ѽʂѽॾٌїɠ೒ิɩʠɳָޮɖʞˎƟˆɼƅ।ѽʂѽॾٌїɠ೒ิɩʠɺɘɾɘָޮɾɫˎƟˆʦ๭ๆɫɺƅഓ٤ (3) ɿԷɹɘɳౝָޮɖʞӁࡁʦ۱ɷɳƆָޮɖʞƅָޮɾɫˎƟˆɼʖɿƅईഔՒߏɼ஦֛ഓࢆʂ k ɸʂː˨ʫ˺ɟʝۚढ़ɩʠʟƆɾɞƅָޮɾɫˎƟˆɿԟɫɺʃƅ෗ҷɾ੺‫ګ‬ƅഓ‫׫‬উʞɠ೑෗ɾɳʕƅ˜ʨʫ˲ʼʫˁʂʓʦՒ‫ݗ‬ɫɳƆʒɳƅԡ܎‫ګ‬ɿԟɫɺʃƅ૳࣢ʂָޮɖʞӁࡁʂʓʦ۱ɷɳɳʕƅָޮɾɫˎƟˆʃๆɘɺɘɾɘƆjXk ‫ګٿ‬ѽॾड़௾ʂ಻ьٌї஦֛ഓࢆɟʝ‫ݩ‬ढ़ɫɳ।ѽˎƟˆʦๆɘɺԑ੺ɾ஦֛ๆ‫ګٿ‬ѽॾ߹‫ٲ‬ʦ۱ɷɳƆ಺jɿѽॾٌїʦߟɭƆ‫ؚ‬‫ڽ‬ɼɫɺƅ஦֛ʂ൘ɠईഔՒߏɼಅʍɺѽॾ३୞ɠʘʘଊɣɾɷɺɘʟƆɧʠʃƅ஦֛ʂഓɠૠɘɧɼɼƅරગ‫ګ‬ƭָޮɖʞˎƟˆɿࡥ‫ټ‬ɫɾɘ‫ګ‬Ʈɿ৷୻ɭʟ੺‫ګ‬ʂӍ‫܄‬ɠईഔՒߏɼಅҼɫɺʘʘਪɘɧɼɠ‫ٵ‬χʂλɸɼ۪ɜʝʠʟƆɳɴɫƅईഔՒߏɿ਻ɭʟѽॾ३୞ɟʝ੒ɡɣଊчɭʟɧɼʃɾɣƅߘঐʂߏঽഝʍ੃ɜɿ๭ๆɭʟԘ୅ɻҞʁ෻੕ɠɾɘଟ୞ʂѽॾ३୞ʦ੬ढ़ɫɺɘʟɧɼɠҷ௨ɻɡɳƆ― 607 ―Copyright(C) 2014 The Association for Natural Language Processing.
All Rights Reserved.

಺j ‫ګٿ‬ѽॾ߹‫ٲ‬ʂ಻ьٌї U੺‫ګ‬ƅೇ߅ƅഓʃ˂ʷ˨˺ˍƟʾˮ˺ 6 ખ UWV ɿʜʟ಻ьƅΜਣۚਏѽॾʃ˰ˠ˲ɖʞʂ௖‫۽‬ԟ‫ؙ‬ʂ।ѽ๻ UWV ɿʜʟ಻ьVan elastic force ofईഔ஦֛‫ ګ੺ ګٿ‬ೇ߅ഓ Μਣ ੺‫ ګ‬ೇ߅ഓ ΜਣϾયԡ

9a balance spring(1)

NNXN NdXy NdX9 NRX3 NNXj N9Xd NNX8 3eXd
N8XR 33X9 3RX9 3kXy NkXd 38X8 NdX9 3RXk
N9Xk ě N3Xj ě NjXk ě NyXj ěelastic balancespringofforcebalance springofelasticforce(2)यk Μਣۚਏɿɞɥʟࠞߤ‫ڤ‬ટഝʍ੃ɜʂಅҼƆURVʂʜɚɿࠞߤʦ‫ڤ‬൘ʌΫஓɭʟɴɥɻʃ࠹ࣱ‫ ګ‬ǳ2Hb@iB+Ǵ ɠ๸ʠɺɫʒɚɠƅඕʾˀˍ˧ɻʃ UkV ʂʜɚɿঽ൘ʂ࠹ࣱ‫ګ‬ʦࠞߤɼ‫܄‬ʣɯɺΫஓɭʟɧɼɻ।ɫɣഝʍ੃ɜʝʠʟ UӮ߅ -M ʃ‫࢑ݪ‬ɩʠʟVƆϾ‫ګ‬Ɖય܎‫ګ‬ʂߏঽഝʍ੃ɜஂ‫ظ‬ඖฌɿɞɥʟ‫תګ‬ʂഝʍ੃ɜʃƅ֜๸ɠ੒ɡɣɾʟɼѽ੾‫ݲ‬ʂ‫ޔظ‬ຟɠൽ੒ɼɾʟɼɼʖɿ˩ˎ˲шɠ௔ɫɣɾʟƆɱʂɳʕƅഝʍ੃ɜ֜๸ʦक़‫ځ‬ɫɺ‫ޔظ‬ຟʦ๓ɜƅಅҼଯ੺ࡸɾഝʍ੃ɜ˩ˎ˲ɿʜɷɺѽ‫ى‬ɭʟɧɼɠਪɘƆɫɟɫɾɠʝƅϾ௟୾ʂ‫ࡼګ‬ʂβɘɠ੒ɡɘ‫ګٿ‬ԝʂඖฌɿɞɘɺʃૠ֜๸ʂഝʍ੃ɜɠ಑ɥʝʠɾɘɳʕƅโƜɾ൘൚ɠ߇ʓʝʠɺɡɳƆɱ ʂ ય ʂ λ ɸ ʂ ʩ ˞ ˴ Ɵ ˈ ɠ ߏ ঽ ഝ ʍ ੃ ɜ UT`2@Q`/2`BM; ɖʟɘʃ T`2@`2Q`/2`BM;V ɼ‫څ‬ʄʠʟƅ‫ګٿٵ‬ʂഓʦෳଯ‫ګٿ‬ʂ‫ࡼګ‬ɿ‫פ‬ɹɥʟʜɚɿഝʍ੃ɜʟʖʂɻɖʟƆߏঽഝʍ੃ɜɿʃஂ‫ګ‬ଯɾഝʍ੃ɜՑ਒ɿԷɹɣ൘൚ɼƅߢஓ੺‫਻ګ‬Ы೒ɥɿԷɹɣஂ‫ظ‬ଯɾ൘൚ɠɖʟɠƅඕʾˀˍ˧ɻʃ਻ฌˎƟˆຟɿʜʝɮΑ଑ɫɺഝʍ੃ɜɠя௾ɻɖʟɼɘɚ෣ɻঽࠋʦ݉ๆɫɳƆඕʾˀˍ˧ɿɞɘɺʃƅϾ௟ඖฌɿɞɘɺ‫ુٱ‬ɾड़௾‫ࣘڽ‬ʦ߹‫ټ‬ɫɳ‫ۚת‬ਏ෱ɿɞɥʟࠞߤ‫ڤ‬ટш U>2/6BMHBxiBQMV(j)ƅտʇɱʂય௟ඖฌ‫ڽ‬ɥ҉ຜ (N) ɼஔโʂഝʍ੃ɜʦΜਣۚਏࣘɻ۱ɚɳʕʂұૌʦ۱ɷɳƆ
9XR Ͼ‫ګ‬Μਣۚਏɿ਻ɭʟࠞߤ‫ڤ‬ટഝʍ੃ɜΜਣۚਏʃ௖ഇ෱ɻɾɘɳʕƅ௖ഇ෱ࣘʂࠞߤ‫ڤ‬ટ
ш (j) ɼஔɬʜɚɿࠞߤɼɾʟ੺‫ګ‬ʦ‫ڤ‬൘ʌΫஓɫɺʖ൷ʒɫɘഝʍ੃ɜٌїɠணʝʠɾɘ UयkɿຶʦߟɭVƆɧʠʃƅࠞߤɼɾʟ෕߅‫ת‬ʦ‫ڤ‬൘ɟʝঽટ߅‫ת‬ɠ࠹ࣱɭʟʜɚɾϓഇԻ‫ؠ‬ʂۚਏɿɞɘɺƅࠞߤ‫ڤ‬ટшɿʜɷɺ෕߅‫ת‬ɨɼ‫ڤ‬ટɩʠʟʂɿ਻ɫƅΜਣۚਏɿɞɘɺࠞߤɼɾʟ੺‫ګ‬ʂʓʦ‫ڤ‬ટɫɺɫʒɷɳɧɼɿՔχɭʟƆɱʂɳʕƅΜਣۚਏɿɞɘɺࠞߤʜʞঽ൘ɿɖʟ࠹ࣱ‫ګ‬ʃࠞߤɼ֩ɿΫஓɩɯʟʜɚɿɫɳ (k)Ɔʒɳƅ‫ת‬஬୅ʘωๆೡʦ‫ژ‬ɤഝʍ੃ɜʦ۱ʣɾɘʜɚɿɭʟຶҙՑ਒ʦ૰юɫɳƆɱʂ਩ƅࠞҳƉෳଯҳʂҳࢊ߅ɿ৷୻ɭʟщ২੺‫ګ‬ʂ৫௡ʘӮ߅ʂ‫࢑ݪ‬ƅഝໆ‫ת‬ʦഝʍ੃ɜɾɘຶҙՑ਒ɿɸɘɺʃ (j) ɼஔโɴɠƅ೾ॅ‫෕آ‬߅ʂ‫آٵ‬ʌʂബԀʃ۱ʣɾɟɷɳƆ
9Xk ય܎‫ګ‬Μਣۚਏɿ਻ɭʟࠞߤ‫ڤ‬ટഝʍ੃ɜય܎‫ګ‬ʃयkʂʜɚɾ෕߅‫ת‬ɿɞɥʟ‫ڤ‬ટ࠹ࣱɠʏɼʧɽɾɣƅΜਣۚਏࣘʂ੺ࡸɾࠞߤ‫ڤ‬ટഝʍ੃ɜɿʜɷɺಅҼଯ௟ඕ‫ګ‬ɿ‫פ‬ɘ‫ࡼګ‬ɠணʝʠʟƆඕʾˀˍ˧ɻʃ
ɩʝɿ (N) ʂગ٪ʦஊʒɜƅஓੁࢊ߅ UbT2+i T`iB+H2V಺9ඖฌ˩ˎ˲ๆ਻ฌˎƟˆʂഓॅտʇ੺‫ॅګ‬‫਻ګٿ‬ഓॅϾ௟k-3je-N33
8-jke-3yy
R-ed9-8keય௟
ԡ௟಺8੺‫ॅګ‬ƭ‫ٵ‬Ʈ ੺‫ॅګ‬ƭ௟Ʈ

3y-yj3-39dRde-kN8-N98
dk-dkR-dkR

N9-j9N-8j8
RNj-d3j-dkN
e8-j88-9Rd‫˲ˎ˩ګٿ‬ๆ௟ඕ‫ˎګ‬Ɵˆʂഓॅտʇ੺‫ॅګ‬‫਻ګٿ‬ഓॅ੺‫ॅګ‬ƭ௟ƮϾ௟

j-e9k-8ej
N-j38-dej
k-R8N-3R3

R9N-89k-933
9R8-yee-y9k
RyN-yky-Nykય௟
ԡ௟ɼ೸߅ɿɸɘɺࠞߤɼɾʟஓ߅ʂ૥‫ڤ‬ɿΫஓɭʟʜɚɿɫɳƆ8ඖฌ߹‫ٲ‬ඕʾˀˍ˧ʂड़௾಻ьʂɳʕƅ࠴ࡍɫɳ਻ฌˎƟˆʦ๭ๆɫɺඖฌ߹‫ٲ‬ʦ۱ɷɳƆϾ௟Ɖય௟ɿɸɘɺʃߏঽഝʍ੃ɜʂย෌ɿʜʟ३୞ಅҼٌїʦߟɭɠƅԡ௟ɿɸɘɺʃߏঽഝʍ੃ɜʦ۱ʣɾɟɷɳɳʕƅඖฌ३୞ʂʓʦߟɭƆ
8XR ߹‫ˎٲ‬Ɵˆඕ߹‫ٲ‬ɿ๭ๆɫɳӁࡁˎƟˆɿɸɘɺƅඖฌ˩ˎ˲ๆ਻ฌˎƟˆɿɸɘɺʃ಺9ɿƅ‫˲ˎ˩ګٿ‬ๆ௟ඕ‫ˎګ‬Ɵˆɿɸɘɺʃ಺8ƅɱʠɲʠߟɭƆ਻ฌˎƟˆʃ k ঐɻࡧʍɳഓ਻Ы೒ɥࠡ൚ɿʜʞணʝʠɳ਻ฌഓʂɚɵƅ਻ฌഓ਻Ы೒ɥˀʺʩɠ᪭ખΙࣘƅɟɸຑ‫ګٿ‬ɼʖλ଑ʂ੺‫ॅګ‬Ι௅ƭϾ௟Ɖય௟ʃ e9 ੺‫ګ‬ƅԡ௟ʃ 3y ੺‫ګ‬ƮʂഓʂʓʦળࡥɫɳʖʂɻɖʟƆʒɳƅ௟ඕ‫ˎګ‬Ɵˆʃணʝʠɳ਻ฌഓʂ௟ඕ‫ګ‬਑ʂɚɵƅಒ࣢ɿഓɠૠɘ
ƭഓߓॅɠ R-yk9 ʦ૝ɜʟƮॅഓʦ࢑ɘɳʖʂɻɖʟƆʒɳƅҔ౎ˎƟˆƉˍˀˏˎƟˆɼɫɺƅϾ௟Ɖય௟Ɖԡ௟ɱʠɲʠɻɞʜɱ R-yyy ഓɮɸʦ๭ๆɫɳƆҔ౎ˎƟˆƉˍˀˏˎƟˆɠԥʒʠʟࡥԱʃӁࡁˎƟˆɿʃԥʒʠɺɘɾɘƆ― 608 ―

Copyright(C) 2014 The Association for Natural Language Processing.
All Rights Reserved.

಺eʠɺɘɳя௾ड़ɠɖʟƆˠƟˀ˰ʫ˺ʂड़௾ɠ‫ۿ‬ɟɷɳ๲ศɼɫɺʃƅ਻ฌˎƟˆຟɠϾ௟ʂ k ఝΙࣘɖʟɧɼƅ஦֛ɿɞɘɺ‫ુٱ‬ɾૠɘ෕߅‫ת‬ɿɞɘɺય܎‫ګ‬ɼ௟ඕ‫ګ‬ʂԝʂ‫ࡼګ‬ʂβɘɠࢡɩɘɧɼɠ۪ɜʝʠʟƆ
8Xe ԡ௟ඖฌԡ ௟ ඖ ฌ ʂ ಻ ь ٌ ї ʦ ಺eU+Vɿ ߟ ɭƆ_A"1a ɻN9XjWƅ"G1l ɻ dyX9W ɼಒ࣢ɿ‫ۿ‬ɘඖฌड़௾ʦߟɫɺɞʞƅ੺‫ګ‬଱‫܄‬๻ɠ 3eXjW ɿʖ੬ɫɳƆԡ܎‫ګ‬ɼ௟ඕ‫ګ‬ʃஂ‫ګ‬ଯɿಒ࣢ɿຳߐɫɺɞʞՆҌඖฌɫʘɭɘɧɼʃʜɣગʝʠɺɘʟɠƅඕ߹‫ٲ‬ʂٌїɿʜʞƅ҉ʕɺԡ௟ඖฌɿɞɥʟஂ‫ظ‬ඖฌʂย‫ڹ‬ड़ɠҷ௨ɻɡɳƆ‫ڬ‬ʞʂࠞχɼɫɺʃරગ‫ګ‬ƅ஦ɿ௟ඕ‫ګ‬ɻʲˆʲˑ‫ګ‬ɿ৷୻ɭʟ੺‫ګ‬ʂඖฌ໤ʠɠਪɣ٪ࠬɥʝʠɳƆඖฌʂߢஓ಻ьٌї U.G ʃ /BbiQ`iBQM HBKBiVUV Ͼ௟ඖฌϾ௟ߏঽഝʍ੃ɜˠƟˀ˰ʫ˺.Ge
R3_A"1aUWV
d3Xe
dkXR"G1lUWVjdX9
j9X3

U#V ય௟ඖฌય௟
ߏঽഝʍ੃ɜˠƟˀ˰ʫ˺.G
jN_A"1aUWV
3dX338Xe"G1lUWV
9NX39dXN

U+V ԡ௟ඖฌԡ௟
ˠƟˀ˰ʫ˺

.G
j_A"1aUWV
N9Xj"G1lUWV
dyX9e߹ਂү‫ګٿ‬ʂ‫ګٿ‬ѽॾࡽ๲ʃ j ঐɿߟɫɳ૳ʞɿ۱ɷɳƆ௟ඕ‫ګ‬ʂ੺‫ګ‬ഇӍɿɸɘɺʖ਩‫ګٿ‬ɼஔโʂѽॾࡽ๲ɿʜɷɺ۱ɷɳƆஂ‫ظ‬ඖฌʂ߹ਂɿʃ JQb2b Up2`X RXyVʦๆɘɳƆ੺‫਻ګ‬Ы೒ɥʃ J:AwYY ʦๆɘƅ੺‫਻ګ‬Ыʂ࡚ʁ‫܄‬ʣɯʃ ;`Qr@/B;@}MH@M/ƅഝʍ੃ɜ˩ˎ
˲ʃ r#2@Kb/@#B/B`2+iBQMH@72 ɼɫɳƆʒɳƅ‫˩ګٿ‬ˎ˲ʃ KQ/B}2/ EM2b2`@L2v ചӓшʦ۱ɷɺӁࡁɫɳ੺‫ ګ‬e@;`K ˩ˎ˲ʦๆɘɳƆү˩ˎ˲ʂ࡚ʓʃҔ౎˂ˊˏʦๆɘɳ‫ڬ‬ʞ݂ࢡшӁࡁ UJ1_hV ɿʜʞ݂଱шɫɳƆഝʍ੃ɜʂक़‫ځ‬ખɻɖʟ /BbiQ`iBQM HBKBi ʃҔ౎˂ˊˏɿɞɥʟ _A"1a ʂ݂੒ખɿԷɹɘɺ‫ى‬଑ɫɳƆ
8Xj ಻ьࠓ୞ඖฌٌїʂ಻ьʃˍˀˏ˂ˊˏʂ௟ඕ‫ګ‬਑ʦๆɘɳߢஓ಻ьɿʜɷɺ۱ɷɳƆ஦֛ඖฌʂߢஓ಻ьɿɞɘɺʃ‫ࡼګ‬ʦ࡚߄ɫɳ಻ьࠓ୞ɻɖʟ _A"1a ɠञࠡ಻ьɼಒ࣢ɿ‫ۿ‬ɘ৷ԟʦߖɸɧɼɠગʝʠɺɞʞ (R)ƅඕ߹‫ٲ‬ɻʖ _A"1a ʦࠞ์ɾ಻ьࠓ୞ɼɭʟƆʒɳƅஂ‫ظ‬ඖฌʂߢஓ಻ьɻ݂ʖʜɣๆɘʝʠʟ "G1l ɿɸɘɺʖ‫܄‬ʣɯɺߟɭƆ
8X9 Ͼ௟ඖฌϾ௟ඖฌʂ಻ьٌїʦ಺eUVɿߟɭƆߏঽഝʍ੃ɜɿʜɷɺƅߏঽഝʍ੃ɜʦ۱ʣɾɘˠƟˀ˰ʫ˺ɟʝ
_A"1a ɻ eX8W ʂड़௾‫ࣘڽ‬ʦ੬ढ़ɫɳƆʒɳƅ
#QQibi`T`2bKTHBM; ɿʜʞ _A"1aƅ"G1l ɼʖஂ‫ظ‬ଯɿยΤɾܴʦҷ௨ɫɳƆɧʂٌїʃ Lh*A_ ɿɞɥʟٌїɼҞʁஔ୾ɻɖʞƅΪɾʟˎƟˆ˂ˊˏʦๆɘɳࣟ‫܄‬ɻɖɷɺʖඕʾˀˍ˧ʂߏঽഝʍ੃ɜɠย‫ڹ‬ɿஒɣɧɼɠҷ௨ɻɡɳƆ
8X8 ય௟ඖฌય௟ඖฌʂ಻ьٌїʦ಺eU#VɿߟɭƆߏঽഝʍ੃ɜɿʜʟड़௾‫ࣘڽ‬ʃ _A"1aƅ"G1l ɼʖ kW ʏɽɻɖʞƅϾ௟ʂࣟ‫܄‬ɿʃտʄɾɘʖʂʂஂ‫ظ‬ଯɿยΤɾܴɠҷ௨ɻɡɳƆඕ߹‫ٲ‬ʂˍˀˏ˂ˊˏɿɞɘɺʃˠƟˀ˰ʫ˺ʂड़௾ɠ _A"1a ɻ 38XeWƅ"G1l ɻ 9dXyW ɼಅҼଯ‫ۿ‬ɣƅߏঽഝʍ੃ɜɿʜʟड़௾‫ࣘڽ‬ʂำઘɠ‫ځ‬ʝ

8Xkɞʣʞɿඕۣɻʃƅߢஓഓ਻Ы೒ɥɿʜʟ੒Ց෦஦֛਻ฌʺƟ˘ˀʦๆɘƅ‫ۿ‬३୞‫ګٿ‬ѽॾɼஂ‫ګ‬ଯߏঽഝʍ੃ɜ
ɿԷɹɣϾયԡ j ˽܎‫ګ‬ɟʝ௟ඕ‫ګ‬ʌʂ஦֛ඖฌʾˀˍ˧ɿɸɘɺൎ‫܍‬ɫɳƆ஦֛ഓʃছ෾ๆ‫ګ‬ɠਪɣഓʖૠɘɳʕƅඖฌɠ௔ɫɘɼ۪ɜʝʠɠɵɻɖʟɠƅ‫ګ‬ᆹʘ಺‫ټ‬ɠ଑‫ؠ‬ଯɻɖɷɺ‫ګٿ‬ѽॾʂ਻࣐ɼɫɺΆɘʘɭɣƅ੒ຟʂ਻ฌˎƟˆʖ๭ๆɻɡʟ୅ɻஂ‫ظ‬ඖฌɠย‫ڹ‬ɾ਻࣐ɻɖʟɧɼɠҷ௨ɻɡɳƆ‫۪ދ‬ഓ٤(R) AbQ :QiQ- E SQ *?Qr- "BM Gm- 1BB+?B`Q amKBi- M/"2MDKBM EX hbQmX Pp2`pB2r Q7 i?2 Si2Mi J+?BM2h`MbHiBQM hbF i i?2 Lh*A_@Ry qQ`Fb?QTX AMS`Q+X Lh*A_@Ry- kyRjX(k) Eibm?BiQ am/Q?- CmM amxmFB- >DBK2 hbmF/JbFB L;i- a?Q >Qb?BMQ- M/ umbmF2 JBvQX
Lhh@LAA aiiBbiB+H J+?BM2 h`MbHiBQM 7Q` Lh@*A_@Ry Si2MiJhX AM S`Q+X Lh*A_@Ry- kyRjX(j) >B/2FB AbQxFB- Eibm?BiQ am/Q?- >DBK2 hbmF/M/ E2pBM .m?X >2/ 6BMHBxiBQM,  aBKTH2 _2@
Q`/2`BM; _mH2 7Q` aPo GM;m;2bX AM S`Q+X qJh@
J2i`B+bJh_- TTX k99Ĝk8R- kyRyX(9) JbQ liBvK M/ >BiQb?B Ab?`X  DTM2b2@
2M;HBb? Ti2Mi T`HH2H +Q`TmbX AM S`Q+X Jh amKKBisA- TTX 9d8Ĝ93k- kyydX(8) sBQvB JX *?KTQHHBQM,  `Q#mbi T`HH2H i2ti b2M@
i2M+2 HB;M2`X AM S`Q+X G_1*- TTX 93NĜ9Nk- kyyeX(e) ຾෱ࡶ- E2pBM .m?- M/ Ϸ୉ࢮ෗X ұૌ˰ʷ˰˺ʿˬԒ
໳ʦๆɘɳஔߗߢী‫ګٿ‬ѽॾ൚X ‫ࡽګٿ‬๲ӁѼ੓ R3 Ѿ௰ߘ੒Ѽ౎಺໱ഓࡍ- TTX Rk39ĜRk3d- J`+? kyRkX(d) spB2` *``2`bX 1tT2`BK2Mib rBi?  >B;?2`@P`/2`S`QD2+iBp2 .2T2M/2M+v S`b2`X AM S`Q+X 1JLGS@*QLGG- TTX N8dĜNeR- kyydX(3) CmM amxmFB- >B/2FB AbQxFB- M/ JbFB L;iXG2`MBM; +QM/2Mb2/ 72im`2 `2T`2b2MiiBQMb 7`QKH`;2 mMbmT2`pBb2/ /i b2ib 7Q` bmT2`pBb2/ H2`MBM;XAM S`Q+X *G@>Gh- TTX ejeĜe9R- kyRRX(N) .M >M- Eibm?BiQ am/Q?- sBM+?Q qm- E2pBM.m?- >DBK2 hbmF/- M/ JbFB L;iX >2/6BMHBxiBQM _2Q`/2`BM; 7Q` *?BM2b2@iQ@CTM2b2 J@+?BM2 h`MbHiBQMX AM S`Q+X aaah@e- TTX 8dĜee- kyRkX― 609 ―

Copyright(C) 2014 The Association for Natural Language Processing.
All Rights Reserved.