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クックパッドと自然言語処理/cookpad-and-nlp
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j.harashima
February 20, 2017
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クックパッドと自然言語処理/cookpad-and-nlp
j.harashima
February 20, 2017
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Transcript
ΫοΫύουͱࣗવݴޠॲཧ ΫοΫύουגࣜձࣾݪౡ७
݄ ݄ ژେֶݴޠϝσΟΞݚڀࣨଐ ΫοΫύουೖࣾ ݪౡ७ ݄ ৽ઃͷݚڀ։ൃ෦ʹҟಈ ത࢜ʢใֶʣऔಘ ݄ ࣗવݴޠॲཧͷݚڀ
ɾಉٛදݱͷ֫ಘʢ*+$/-1ʣ ɾݕࡧ݁Ռͷཁʢ/-1*9ʣ ɾݕࡧ݁ՌͷϦϥϯΩϯάʢ*+$/-1ʣ ɾຊޠจͷѹॖʢ$0-*/(ʣ αʔϏε։ൃ෦ ࣗવݴޠॲཧͱը૾ೝࣝͷݚڀɾ։ൃ ɾϨγϐίʔύεͷߏஙʢ-3&$ʣ ɾϨγϐͷ༁ʢ8"5ʣ
ΫοΫύου Πϯλʔωοτ্ͰϨγϐͷߘɾݕࡧ͕Ͱ͖Δ ຊ࠷େͷྉཧϨγϐαʔϏε
ɾλΠτϧ ɾ֓ཁ ɾࡐྉ ɾखॱ ɾίπɾϙΠϯτ ɾ͜ͷϨγϐͷੜཱ͍ͪ ɾͭ͘ΕΆ ɾ ߘϨγϐ
ݕࡧ݁Ռ ৽ணॱ ਓؾॱ
݄࣍ར༻ऀ ݄࣍ར༻ऀʢւ֎ʣ ࣍ར༻ऀ ສਓ ສਓ Ϩγϐ ສ ສਓ
ΫοΫύουͱࣗવݴޠॲཧ
Ͳ͜Ͱʁ ɾϨγϐͷղੳ ɾಉٛදݱͷೝࣝ ɾϨγϐͷྨ ɾϨγϐͷ༁ ɾͦͷଞ
Ϩγϐͷղੳ ϨγϐΛΠϯσΩγϯά͢ΔͨΊɺϨγϐதͷ֤ςΩετΛղੳ ಲͷʹΜʹ͘ে༉ম͖ ͷ ʹΜʹ͘ ে༉ ໊ࢺ ໊ࢺ ॿࢺ ໊ࢺ
c c c c ಲ ম͖ ಈࢺ ܗଶૉղੳ
ܗଶૉղੳ༻ࣙॻͷ֦ு FDIPΑͩΕܲcNFDBC0XBLBUJ ΑͩΕܲ FDIPΑͩΕܲcNFDBC0XBLBUJVDPPLQBEEJD ΑͩΕܲ ʢ˞ਓखʣ
Ͳ͜Ͱʁ ɾϨγϐͷղੳ ɾಉٛදݱͷೝࣝ ɾϨγϐͷྨ ɾϨγϐͷ༁ ɾͦͷଞ
ಉٛදݱͷೝࣝ ΠϯσΩγϯάͷࡍʹಉٛදݱΛٵऩ
ಉٛදݱೝࣝ༻ࣙॻͷߏஙʢ˞ਓखʣ
Ͳ͜Ͱʁ ɾϨγϐͷղੳ ɾಉٛදݱͷೝࣝ ɾϨγϐͷྨ ɾϨγϐͷ༁ ɾͦͷଞ
Ϩγϐͷྨ Ϣʔβ͕ϒοΫϚʔΫͨ͠ϨγϐΛ47.Ͱྨ ྫ͑ɺʮ͓՛ࢠʯΛ ΫϦοΫ͢Δͱʜ
ྨثͷ࣮ DMBTTJpFS3FDJQF$MBTTpFSOFX lNFBUz "$$&15"#-&@13&$*4*0/ DMBTTJpFSUSBJO QPTJUJWF@SFDJQFT OFHBUJWF@SFDJQFT DMBTT3FDJQF$MBTTJpFS
EFGUSBJO QPTJUJWF@SFDJQFT OFHBUJWF@SFDJQFT ʜ "$$&15"#-&@13&$*4*0/ΛຬͨͤTBWF NPEFMTBWF QBUI JGBDDFQUBCMF NPEFM FOE FOE ϢʔβͷਪનϨγϐΛ ਖ਼ղσʔλͱͯ͠ར༻
Ͳ͜Ͱʁ ɾϨγϐͷղੳ ɾಉٛදݱͷೝࣝ ɾϨγϐͷྨ ɾϨγϐͷ༁ ɾͦͷଞ
ຊޠͷϨγϐΛχϡʔϥϧ.5Ͱӳޠʹ༁ ݚ ڀ ஈ ֊ Ϩγϐͷ༁ ػց༁
"UUFOUJPO.PEFM #BIEBOBVFUBM ֶशσʔλ ɾ Ϩγϐͷର༁ ࣮ ɾ1ZUIPOX$IBJOFS ༁ྫ ɾ֖·ͨΞϧϛϗΠϧͰམͱ֖͠Λͯ͠தՐͰৠ͠ম͖ʹ ɹ͠·͢ɻ
ɹɹɹɹɹɹɹɹɹɹɹɹɹˣ ɹDPWFSXJUIBMJEPSBMVNJOVNGPJM BOETUFBNUIF ɹDIJDLFOPONFEJVNIFBU
Ͳ͜Ͱʁ ɾϨγϐͷղੳ ɾಉٛදݱͷೝࣝ ɾϨγϐͷྨ ɾϨγϐͷ༁ ɾͦͷଞ
ສͷϨγϐͱͦΕΒ͔ΒͳΔݙཱʹؔ͢Δσʔλ ɾλΠτϧ ɾ֓ཁ ɾखॱ ɾͭ͘ΕΆ ɾΧςΰϦ ɾʜ Ϩγϐίʔύεͷެ։
ݚڀͷ͕Γ ެ։લʢʙ݄ʣ େֶݚڀࣨ ެ։ޙʢ݄ʣ େֶݚڀࣨ
ࠓޙͷ՝
ࠓޙͷ՝ ɾܗଶૉղੳͷਫ਼্ ɹɾݱঢ়͕Ͳͷఔͷਫ਼ͳͷ͔͕ʢ͋·Γʣ͔͍ͬͯͳ͍ ɹɾςετηοτΛͪΌΜͱߏஙͯ͠ɺண࣮ʹਫ਼Λ্͍ͤͨ͞ ɾಉٛදݱͷࣗಈ֫ಘ ɹɾڈ͔Βւ֎ల։ΛՃˠࠃ͝ͱʹࣙॻΛߏங͢ΔͷͩΔ͍ʜ ɹɾΫΤϦϨγϐ͔ΒಉٛදݱΛࣗಈͰ֫ಘ͍ͨ͠ ɾϨγϐͷཁ ɹɾʮجຊతͳϨγϐʢ͓͓·͔ͳϨγϐʣ͕Γ͍ͨʯͱ͍͏ཁ͕ଟ͍ ɹɾෳͷϨγϐΛཁ͢Δ͜ͱͰɺجຊతͳϨγϐΛ࡞͍ͨ͠
ɾରʹΑΔݕࡧʁ ɹɾ͏ͦ͏͍͏࣌ʁʢؾͷ͍ͤʁʣ
8F`SFIJSJOH ɾϦαʔναΠϯςΟετʢओʹݚڀ୲ʣ ɹɾαʔϏεʹಋೖ͞ΕΔػցֶशͷϩδοΫ෦ͷ࣮ ɹɾ*P5.3ʹͱͮ͘৽͍͠αʔϏεͷاը ɹɾ࠷৽ͷٕज़ͷΠϯϓοτͱΞτϓοτ ɾϦαʔνΤϯδχΞʢओʹ։ൃ୲ʣ ɹɾݚڀ։ൃج൫ΛޮԽ͢ΔͨΊͷ։ൃج൫ͷઃܭͱߏங ɹɾػցֶशΛར༻ͨ͠εέʔϥϒϧͳαʔϏεͷ։ൃͱӡ༻ ɹɾ"OESPJEJ04ʹ͓͚ΔϓϩτλΠϐϯά ͝ڵຯ͋ΔํͷΤϯτϦʔΛ͓͍ͪͯ͠·͢
IUUQTSFDSVJUDPPLQBEDPN