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文献紹介 : Fluency Boost Learning and Inference for...
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Atsushi
August 29, 2018
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文献紹介 : Fluency Boost Learning and Inference for Neural Grammatical Error Correction
2018年8月29日 文献紹介
長岡技術科学大学
自然言語処理研究室
Atsushi
August 29, 2018
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Transcript
'MVFODZ#PPTU-FBSOJOHBOE*OGFSFODF GPS/FVSBM(SBNNBUJDBM&SSPS$PSSFDUJPO Ԭٕज़Պֶେֶࣗવݴޠॲཧݚڀࣨ ੁ३ࢤ จݙհ ݄ 5BP(F'VSV8FJ.JOH;IPV 1SPDFFEJOHTPGUIFUI"OOVBM.FFUJOHPGUIF"TTPDJBUJPOGPS $PNQVUBUJPOBM-JOHVJTUJDT -POH1BQFST
QBHFTr .FMCPVSOF "VTUSBMJB +VMZ 1
"CTUSBDU w ଟ͘ͷ4FR4FRϞσϧʹͭͷݶք͕͋Δ w ݶఆ͞ΕͨޡΓగਖ਼σʔλͰҰൠԽͰ͖ͳ͍Մೳੑ͕͋Δ w ෳͷޡΓ͕͋ΔจΛશʹగਖ਼Ͱ͖ͳ͍͜ͱ͕͋Δ w ͭͷݶքΛղܾ͢Δख๏ΛఏҊ͢Δ w
$P/--ͱ+'-&(CFODINBSLEBUBTFUTͰ 4P5"Λୡͨ͠ !2
*OUSPEVDUJPO w ଟ͘ͷ4FR4FRϞσϧʹͭͷݶք͕͋Δ ݶΒΕͨ܇࿅σʔλΛ༻͍ͯ͠ΔͨΊ Ϟσϧ͕ҰൠԽ͍ͯ͠ͳ͍Մೳੑ͕͋Δ ෳͷޡΓΛؚΉจʹର͠ Ұͷగਖ਼Ͱ
ෳͷޡΓΛશʹగਖ਼͢Δ͜ͱ͕Ͱ͖ͳ͍ w ্هͷݶքʹऔΓΉͨΊʹ ৽͍͠ྲྀெΛߴΊΔֶशͱਪख๏ΛఏҊ͢Δ !3
'MVFODZCPPTUMFBSOJOH w จYͷྲྀெG Y !4 ݴޠϞσϧʹΑͬͯܭࢉ͞Εͨɹͷจ຺ͷ֬ จɹͷަࠩΤϯτϩϐʔ w ຊจͰ࣍ͷ͍ͣΕ͔ͷख๏ͰྲྀெΛߴΊΔ
#BDLCPPTUMFBSOJOH 4FMGCPPTUMFBSOJOH %VBMCPPTUMFBSOJOH P(xi |x<i ) : H(x) : x<i x
#BDLCPPTUMFBSOJOH w #BDLUSBOTMBUJPOΛ༻ͯ͠ྲྀெͳจ ͔ΒඇྲྀெͳจΛੜ͠τϨʔχϯά σʔλʹՃ͢Δ !5 ޡΓగਖ਼͞Εͨྲྀெͳจ ੜ͞ΕͨޡΓจͷީิ xc
: x0k :
4FMGCPPTUMFBSOJOH w ޡΓగਖ਼݁Ռͷจͷ͏ͪ ྲྀெͳจΑΓ ྲྀெ͕͍จΛΤϥʔ༧ଌͱΈͳͯ͠ τϨʔχϯάσʔλʹՃ͢Δ !6 ޡΓగਖ਼͞ΕΔલͷඇྲྀெͳจ ޡΓగਖ਼͞Εͨจͷީิ
ޡΓగਖ਼͞Εͨྲྀெͳจ xr : x0k : xc :
%VBMCPPTUMFBSOJOH !7 w #BDLCPPTUMFBSOJOHͱ 4FMGCPPTUMFBSOJOHΛ Έ߹ΘͤͨϞσϧ ޡΓగਖ਼͞ΕΔલͷ ඇྲྀெͳจ ޡΓగਖ਼͞Εͨจͷީิ
ޡΓగਖ਼͞Εͨྲྀெͳจ xr : x0k : xc :
'MVFODZCPPTUJOGFSFODF !8
%BUBTFU w %BUBTFU w $P/--TIBSFEUBTLEBUBTFU w -BOHDPN w OBUJWFEBUB&OHMJTI8JLJQFEJBDPSQVT w
-BOHVBHF.PEFM -. w MBZFS(363//MBOHVBHFNPEFM .JLPMPWFUBM !9
&YQFSJNFOUBMSFTVMUT !10 w OPSNBMTFRTFR w 3FDVSSFOU/FVSBM/FUXPSL 3// CBTFEFODPEFSEFDPEFS TFRTFRNPEFM 4VUTLFWFSFUBM
$IPFUBM
!11
!12
$PODMVTJPO w ҎલͷOFVSBM(&$ϞσϧͷݶքΛࠀ͢ΔͨΊͷ ৽͍͠ྲྀெΛߴΊΔख๏ΛఏҊͨ͠ w ޡΓͷ͋ΔσʔλͱωΠςΟϒσʔλΛશʹ׆༻͠ ௨ৗͷ4FR4FRͷֶशΑΓύϑΥʔϚϯεΛେ෯ʹվળͨ͠ w
$P/--ͱ+'-&(CFODINBSLEBUBTFUTͰ 4P5"Λୡͨ͠ !13