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ǕǿŽ ! óµǧǺ (@unnonouno) ! ƞŬ ! ƓüūŋÌ ! m[eo|Vr]
! đúÌĔIBMċȀųPFI / -
¨ŬƓüūŋÌ [Bird+10] 10Ǵ ī=ßƜ=ĐDz 10.1 ƓüūÌĐ 10.2 ŹøŅÌÒ 10.3 ƳƐūŅÌ
10.4 Əūī=ßƜŅ 10.5 ŵõßƜŅ 10.6 C9F 10.7 ņěīǟ 10.8 ǀǃáø 2 -
ƓüūŋÌƬưǝƼhwoWXTƪÒ [Ƃ +96] 5. ßƜĐDz 5.1 ßƜĐDz9> 5.2 ÄǣÞŚ<ċ6%ßƜ°Ș ȗäĐŗ
5.3 ÊŸ¸Į<ċ6%ßƜ°Ș ȗäĐŗ 5.4 0=Ƹ=áø 3 -
@9%3<ßƜŅ9ü47Gm|>ƅ ! Ü;ßƜŅWikipediaKM ! æDz ! ¤æßƜŅ ! žĸßƜŅ !
ȄŲßƜŅ ! ĒēßƜŅ 4 '=Ʀ=õ>*C.S -
ǔǮũ (Distributional Hypothesis) ! §+īȍ8é,Nƹū>§+ßƜRû59'9 ! À=õ> Ń;!L-'=ǮũR÷Í*7N¸Ê *7NÁÎǎRǦC, .1
The Distributional Hypothesis is that words that occur in the same contexts tend to have similar meanings (Harris, 1954). (ACL wiki ) -
Ŕ°ßƜŅ (Statistical Semantics)9> ! ū=Ŕ°;äŨ!LßƜRěN ! Ȕ:= " %=Ŕ°;äŨR÷Í,N
.2 Statistical Semantics is the study of "how the statistical patterns of human word usage can be used to figure out what people mean, at least to a level sufficient for information access”(ACL wiki ) -
ū=ßƜ9 īȍ=¸Į .3 &H I ) GKBC>ON &H GKBC )
;>ON 0L%ľªì* -
':G>:I47ßƜRÒS8N=! [Àč 13] ! ]xwlG\k bG 5#)C ! ƌ9ƃ*!ēL; ²Ż<ǰƾR¡.1L
! ^RēL;²Ż> ŕ8q_9 .4 Ƹ=`ot9=¸Į" -
ĝĽ°<8#0;'9 ! §ŞūĢ©ūƱŞū ! ū9ū=ßƜ=¸ĮRǦNK<;N ! ąŞū ! īȍ<ʼn+7 :=ßƜ8ħQO7N=!"Q!
N ! ƻēū´ū ! ƯƦīȍ!L ƻē=ƹū=ßƜ"ƱƘ8#N ! Ǿū ! ƿ;Nüū®8©ʼn,Nƹū=¸Į"¿L!< .5 -
;/'=õR,N=! ! ļij;ĜƲđúRŀÝ9*;1F üūn i)O?ƷÍ8#N ! PFI=ŦĴ=Ǎ&7N³Rśƽ*7%ON! G*O; ! ćǶ`p=§ŞūƤŮūŞȘȗäĐŗ
! īĦƱ< &NĜƲni=Öŕ ! ąüūćǶ<ŀÝ;ǾūǛĦ ! '=1=®<ÆǂC*æĨ"úġ)O7N .6 -
Ǫȉ<>35=ŋÌR ! üūŋ̰;ŋÌR ! ex: ĪÍRȖ, īſËīſ ǚū etc… !
ƹūRīȍ<K47Ôé,N ! ex: īĦ±ķŜ ī±ķŜ ǯƗǸ ƹªòǞªò ĮMî& ÓȌ-ưū¸Į etc… ! ƹūÔéRC%Ôé*ĝ, ! ex: Ǔye ĬŊye NNye etc… ! DZƛȐ ĬŊn NNnGƅ /- -
ȈŁßƜĐDz: Latent Semantic Indexing (LSI), Latent Semantic Analysis (LSA) [Deerwester+90]
! đúćǶ=`}rmU8¤CO1 ! 9 :'=ÈįRǘS8GŶƚ!ãÏ)O7 N%LćǶ9üūŋÌ>ǜ"ƍ ! ƹūR 0=ƹū"é*7NīĦĿ9* 7Ô, ! '=ƹūy\o>#49ȓ;=8ĚĎƭĄ 8#N /. -
LSI=ƙĐ // ńƹū":=īĦ<Ŷ ¶7N=!=Ǔ U ∑ V = x x
(SVD) i k: KM>8 ƹūiRkĚĎ8Ôé *7N & -
īȍy\o=ėMªO'O ! ƹū-īĦǓ ƹū-ƹūǓ etc. ! ī±ķŜ ǯƗǸbVf ƥƫ=İij etc.
! ĮMî&¸Į ÓȌ-ưū¸Į Šīù=Ɖ ²¸Į etc. /1 -
Ü<5=ëÉ=ªòä /3 LSI PLSI LDA NMF NNLM %&h\i "$ NN
RNNLM Skip- gram NTF -
üūnƢ ! LSIƠ=ĬŊ°üūn90=ëÉƢ ! Ü<īǴ=ovk\9 ovk\!L=ƹū"¤æ)O N'9RnÉ,Novk\n9*7ëÉ Good ! ƟĖÿƩ"ǹ*7
M ÇŴƟĖ*I, ! Ƹ=ĬŊn9ýDQ.I, Bad ! ĀIJ"þ1 /4 -
0=< ĬŊ°üūn9> ! `ot>NĬŊǔ!Lbx ])O7N 9Ǯ¯,N ! ơǒ)O11%)S=m[eoni!L G9=`o t=ǔRƘ¯,N !
:=K;ĬŊǔRçĀ,N! :=K<ƀŊ°< ǔRƘ¯,N!"ǵ=¡.:'P /5 ī -
ĬŊ°ȈŁßƜĐDz Probabilistic Latent Semantic Indexing (PLSI) [Hofmann99] ! LSI9Ʊǽ=ßƜĵ&"8#NK;n !
ovk\<K47ƿ;Nƹū"I, ! ex: e{l;LµĺbkZı¾ £ Ć;LŔŷÄť;: ! Vd9*7> LSI8ƹūRţĚĎ<Ŏ9* 1=9§ƅ< ƹūGīĦGovk\=ĿCM 9Ġ47ĬŊn<;NK<çĀ /6 -
PLSI=GŃ*3HS9*1ũ¿ ! ńīĦ<>ovk\=ǔ"ºC47N ! ex: bkZ9óâ=õø"I, D1;Ȋǐè ! ńƹū<©*7 !
ovk\ǔ<Ʈ475ovk\RºFN ! 0=ovk\!LƹūR@95ºFN ! 'ORǑMŢ*7īĦ"¤æ)O19Ġ 0- -
LDA>:S:SëÉ*7% ! ovk\n9µRǖ# ÙGþ Ý;NLPTa f~=159*7ðLO7 N ! ĶǠ;: üūñâ=ni<GʼnÍ)O7 N
! ûŧäI ĥ¦)S=ÈįRņǩ*7½) 0/ -
üūnƢÁ=Řå ! ĬŊn;=8Ƹ=ĬŊ°Á9Ñä"Ř ! ĬŊƄ=dz&IJ<Ɠ;ßƜĵ&"8#N ! ex: Ŕ°đúćǶ Ŕ°×ȆȒǾ etc.
! ƟĖªÁ"Ĭ¹)O7N ! Řǔ"Ƙ¯)O7N=8O? éÇ=Ɠ ī=ĬŊ"¥%;47N>- ! ăï"ŀ-1.0<;NK<Ïš)O7N1F e `TĬŊ=Ǘ©Ƅ<ßƜ"N 00 -
ǓĐƢ ! ƹū=īȍǓN>mhRėM ţ\8ĕǽ,N ! Y dq=LSIGSVDR÷Í*7N Good ! ǓĐ=m\rk\"0=CCħN Bad
! ßƜĵ&R,N="Ű* ! ĬŊn9*7ħ;1F Ƹ=ʼnÍ9= Ɖïä"ţ 01 -
Non-negative Matrix Factorization (NMF) [Lee +99] ! ¼ş=SVD87%Nœ=Įð=ßƜĵ&"Ű* ! ì=Ƅ<;NK;ÞÐ=G98ǓRĐ,N
! ĊĨ"eue<;M ßƜGØMI,"ą 02 3HS9ŠæÝNj<Đ)O7N [Lee+99]KM -
NMF = PLSI [Dinga+08] ! NMF9PLSI> Ç>§+ư¸ð8N'9"¬< !41 ! ij<¢¿)O1Á"Ç>§+ßƜRû471'9
"=3<;47Q!N'9>Ƶş<ą 03 FQEF<CN NMF PLSI -
rsko\Ƣ ! ƹū=y\oÔéRrsko8Òǃ ! Ùĕ=word2vecŅī8ŏ<õø<Üơ8, Good ! ƱǽÂñ=ßƜ=Ny\oÔé"ÇŴ°<ďLO 1C2K%!47;)0 Bad
! ĀIJ"ł ÇLJGł0 ! ƾK%Q!L; 06 -
Neural Network Language Model (NNLM) [Bengio +03] ! N]~üūnR NNÉ
! ÊêN-1īſ!L Ě =īſRÛ7NĬŊ n=rsk oRŠǖ,N 1- -
Recurrent Neural Network Language Model (RNNLM) [Mikolov+10] ! t-1īſǘS29#=Œŝ Ry\oÉ*7
tīſÆR 0=Œŝ!LÛ7N ! NNLM8>ĝNīſ=y\o !LĚRÛ771 ! ĝC8=īȍđú"ǡFĉ CO7NȊǐè ! http://rnnlm.org 1. īſ ƹū «Ǚ =ǤOǏ ǤOǏ Ě=¨» =āǒ `v -
RNNLM9Transition-based parser=¸Į ! RNNLM=n>Transition-based parser<ǽ7N K<¡NƁ¡ ! Stack"recurrent;y\o<©ʼn*7NK<¡N ! Ŕū°;ļǢGÔé8#7N=>0=.
! ż? àƹé=Üū"#19đú"ǡFĉCO7 N=8> 10 >Q'KM -
Skip-gramn (word2vec) [Mikolov+13b] ! ƯƦƹūRāǒ,Nn ! ƯƦƹū!Lāǒ,Nn CBOWGĘČ*7N ! Analogical
reasoning=NJÂ" ǻ°<ò ! ÇLJ"ÕÃ)ON G>IParser":'9!;S 241= 11 -
Skip-gramn[Mikolov+13b]=ư¸ð ! ¨»`ue: w 1 , w 2 , …,
w T w i >ƹū 12 'ORÙ É vw I&wP#@NK9FeU]il*FmD7 =OLP?A8 cI WSYD5<L8 -
word2vec";/ǼƔ°241! ! ƹū=y\oÔé>ÀC8G41 ! ƱǽDŽ=ļǢ>Ɲ1*71" ŕ*1Mí1M9 41ǥė>ÀC88#;!41 ! üūnƢ> ċ°<ī±ķŜRnÉ*7N1F
ovk\9#ȎÂ*!ȕLO7; ! ǓĐƢ8 œ=e`T=ßƜĵ&<ƺƖ*7NMF"ƶÍ) O1'9RĠ0 ! ßƜ=Šű>G49ǚǪ8 ¨Ų<ĹŇ)O1üūÈǁ 9ňDž";9Ôé8#;9Ġ471 15 -
NNƢÁ=''"Ř ! ș=äŨ"Ě9¿L!< ! ßƜ=ĝĽ°;äŨ" Ŷƚ!y\oŌ®<ǡ FĉCO7N ! ŕ*1Mí1MôLj941M !
B9S:"2013<úġ)O7N ! Mikolov>'=2&815ĕŅīR*7N ! 1AS Ŷ!"Q!N=>'O!L 2. -
ÆRdžF7DN9 ! ŶRīȍ9,N! ! üūnƢī±ķŜ ĝNƹū ! ǓĐƢī±ķŜ ! NNƢĝNƹū
ǯƗǸ ! :łƧ,N! ! üūnƢǤOłð<Ŏ9, ! ǓĐƢţ\<Ŏ9, ! NNƢư¸ð"ÙÙË<;NK<Ïš 2/ Á=Ū>O: ¢Ÿ>ǽ7N -
À¬:;47%! ! NNƢÁ=Ũ°<þÝ;³"ØM)ON ! ;/ÀC8C%!;!41=! Ũ°;þÝ ;Ū>Ŷ;=! ! ij=ßƜĵ&Iij=ÇéªÁ"é,N !
ǓĐƢ=ªÁ8ģé8#N9 ǻ°<Òǃ«® RĄL*1M ňƒ<ĀIJ8#NK<;N!G ! ʼn͵=Ĭ¹ ! C2 ;S!ğƈy ! ÇĈ=Tx ^c<ʼnÍ)O7% 20 -
C9F ! Statistical Semantics9>;<! ! Ŕ°;äŨ Ü<ƹū=éīȍ=äŨ9 0= ū=ßƜ=¸Į<!S,NųƊ !
#%&735=ªòä ! ǓĐƢ üūnƢ rskoƢ ! NNƢÁ>ÖĠÅ ! ŕ*1M í1M ôLj941M ! Ȃź=NNüūn>C2ĭC41?!M2 21 -
ņěīǟ1ř¨ ! [Bird+10] Steven Bird, Ewan Klein, Edward Loper, ȇÚì,
·Ƿę, öµƣ¿. . YV du, 2010. ! [Ƃ+96] ƂĞŤĩÌƴ. !$# . ƬưĦō, 1996. ! [Evert10] Stefan Evert. Distributional Semantic Models. NAACL 2010 Tutorial. ! [Àč13] ÀčE5D. & . ȃȅĦǨ, 2013. ! [Deerwester+90] Scott Deerwester, Susan T. Dumais, George W. Furnas, Thomas K. Landauer, Richard Harshman. Indexing by Latent Semantic Analysis. JASIS, 1990. 22 -
ņěīǟ2üūnƢǓĐƢ ! [Hofmann99] Thomas Hofmann. Probabilistic Latent Semantic Indexing. SIGIR,
1999. ! [Blei+03] David M. Blei, Andrew Y. Ng, Michael I. Jordan. Latent Dirichlet Allocation. JMLR, 2003. ! [Lee+99] Daniel D. Lee, H. Sebastian Seung. Learning the parts of objects by non-negative matrix factorization. Nature, vol 401, 1999. ! [Ding+08] Chris Ding, Tao Li, Wei Peng. On the equivalence between Non-negative Matrix Factorization and Probabilistic Latent Semantic Indexing. Computational Statistics & Data Analysis, 52(8), 2008. ! [Cruys10] Tim Van de Cruys. A Non-negative Tensor Factorization Model for Selectional Preference Induction. Natural Language Engineering, 16(4), 2010. 23 -
ņěīǟ3NNƢ1 ! [Bengio+03] Yoshua Bengio, Réjean Ducharme, Pascal Vincent, Christian
Jauvin. A Neural Probabilistic Language Model. JMLR, 2003. ! [Mikolov+10] Tomas Mikolov, Martin Karafiat, Lukas Burget, Jan "Honza" Cernocky, Sanjeev Khudanpur. Recurrent neural network based language model. Interspeech, 2010. ! [Mikolov+13a] Tomas Mikolov, Wen-tau Yih, Geoffrey Zweig. Linguistic Regularities in Continuous Space Word Representations. HLT-NAACL, 2013. ! [Mikolov+13b] Tomas Mikolov, Kai Chen, Greg Corrado, Jeffrey Dean. Efficient Estimation of Word Representations in Vector Space. CoRR, 2013. 24 -
ņěīǟ4NNƢ2 ! [Mikolov+13c] Tomas Mikolov, Ilya Sutskever, Kai Chen, Gregory
S. Corrado, Jeffrey Dean. Distributed Representations of Words and Phrases and their Compositionality. NIPS, 2013. ! [Kim+13] Joo-Kyung Kim, Marie-Catherine de Marneffe. Deriving adjectival scales from continuous space word representations. EMNLP , 2013. ! [Mikolov+13d] Tomas Mikolov, Quoc V. Le, Ilya Sutskever. Exploiting Similarities among Languages for Machine Translation. CoRR, 2013. 25