クックパッドと機械学習（短縮版）/MLTBP

by j.harashima

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.BDIJOF-FBSOJOH5FBN#VJMEJOH1JUDI ΫοΫύουͱػցֶशɹ ΫοΫύουגࣜձࣾݪౡ७ ʢ୹ॖ൛ʣ

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೥݄ ೥݄ ژ౎େֶࠇڮɾՏݪݚڀࣨ഑ଐ ΫοΫύουೖࣾɺαʔϏε։ൃ෦໳഑ଐ ത࢜ʢ৘ใֶʣऔಘ ΤϯδχΞʢ3VCZPO3BJMTػցֶशʣ ೥݄ Ϧαʔνϟʔʢࣗવݴޠॲཧ৘ใݕࡧʣ ݪౡ७ ೥݄ Ϛωʔδϟʔʢਓࣄ޿ใࡒ຿ʜʣ ݚڀ։ൃ෦໳৽ઃɺಉ෦໳഑ଐ

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ΫοΫύου Πϯλʔωοτ্ͰϨγϐͷ౤ߘɾݕࡧ౳͕Ͱ͖Δ ೔ຊ࠷େͷྉཧϨγϐαʔϏε

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Ԋֵ ೥݄ ༗ݶձࣾίΠϯʢݱΫοΫύουגࣜձࣾʣઃཱ ೥݄ ೥݄ ೥݄ ೥݄ ೥݄ ೥݄ Ϩγϐͷ౤ߘɾݕࡧαʔϏεLJUDIFO!DPJO։࢝ ΫοΫύουʹαʔϏε໊มߋ ೥݄ ϓϨϛΞϜαʔϏε։࢝ Ϛβʔζ্৔ ౦ূҰ෦ʹࢢ৔มߋ ೥݄ ւ֎ల։Λຊ֨Խ ઃཱप೥ ϓϨϛΞϜαʔϏεձһ਺ສਓಥഁ

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ݴޠΧࠃ

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ݴޠΧࠃ

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ϓϨϛΞϜձһ਺ ݄ؒར༻ऀ਺ʢࠃ಺ʣ ݄ؒར༻ऀ਺ʢւ֎ʣ Ϩγϐ਺ ສਓ ສ඼ ສ඼ ສਓ ສਓ

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Ԋֵ ೥݄ ༗ݶձࣾίΠϯʢݱΫοΫύουגࣜձࣾʣઃཱ ೥݄ ೥݄ ೥݄ ೥݄ ೥݄ ೥݄ Ϩγϐͷ౤ߘɾݕࡧαʔϏεLJUDIFO!DPJO։࢝ ΫοΫύουʹαʔϏε໊มߋ ೥݄ ϓϨϛΞϜαʔϏε։࢝ Ϛβʔζ্৔ ౦ূҰ෦ʹࢢ৔มߋ ϓϨϛΞϜαʔϏεձһ਺ສਓಥഁ ೥݄ ւ֎ల։Λຊ֨Խ ઃཱप೥ ೥݄ ݚڀ։ൃ෦໳৽ઃ

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എܠ ʕʕ·ͣ͸ɺݚڀ։ൃ෦͕ੜ·Εͨഎܠʹ͍ͭͯڭ͍͑ͯͩ͘͞ɻ ɹݚڀ։ൃ෦্ཱ͕͕͖͔͚ͪͬͨͬ͸ɺ೥͝Ζʹࣾ಺ͰػցֶशͳͲʹڵຯΛ࣋ͬͨࣾһ͕਺໊ू·ͬͯݚڀ ։ൃνʔϜΛ࡞Γɺۀ຿֎Ͱࣗओతʹٕज़ͷݚڀΛ͸͡Ίͨͱ͜Ζʹ͔͞ͷ΅Γ·͢ɻΫοΫύου͸αʔϏεͷӡӦ Λ௨ͯ͡ɺ͞·͟·ͳϢχʔΫͳσʔλΛอ༗͍ͯͨ͠ͷͰɺͦΕΒͱػցֶशΛ૊Έ߹ΘͤΔ͜ͱͰ໘ന͍αʔϏε ͕࡞Εͳ͍͔ͱߟ͍͑ͯͨͷͰ͢ɻ ɹ౰࣌ɺͦΕ͸ձࣾʹͱͬͯ͸͋͘·Ͱlඇެࣜzͳ׆ಈͩͬͨͷͰ͕͢ɺͨͱ͑͹ΫοΫύουͷϏοάσʔλΛݚڀ ໨తͱͯ͠େֶͷݚڀࣨʹఏڙ͢Δͱ͍ͬͨ׆ಈΛଓ͚ΔதͰɺࣾ಺Ͱ΋஫໨͞ΕΔΑ͏ʹͳΓ·ͨ͠ɻ͢Δͱɺ ೥͝Ζ͔Β͸ੈͷதͰػցֶशʹେ͖ͳ஫໨͕ू·ΔΑ͏ʹͳΓɺͦΕʹͱ΋ͳͬͯࣾ಺ͷ͞·͟·ͳ෦ॺ͔ ΒɺࢲͨͪʹػցֶशΛ׆༻ͨ͠αʔϏε΁ͷ։ൃࢧԉͷ੠ֻ͕͔ΔΑ͏ʹͳͬͨͷͰ͢ɻ ɹͦ͏ͳΔͱɺػցֶश͕ಘҙͳΤϯδχΞ͕ධՁ͞ΕΔ૊৫͕ࣾ಺ʹͳ͍ͱ͍͏՝୊͕ੜ·Εͯ͠·͍·͢ɻ౰࣌ɺ ͦ͏͍͏ΤϯδχΞ͸͞·͟·ͳ෦ॺʹϔϧϓʹ͍ͬͯ׆ಈ͍ͯͨ͠ͷͰɻͦ͏ͨ͠૊৫తͳ՝୊ͱɺੈͷதͷػց ֶशʹؔ͢ΔϜʔϒϝϯτͳͲΛഎܠʹɺ೥݄ʹݚڀ։ൃࣨͱͯ͠ਖ਼ࣜͳࣾ಺νʔϜ͕Ͱ͖ɺ݄ʹ෦ʹঢ֨ ͠·ͨ͠ɻ

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ؔ࿈αʔϏε ͓·͔ͤ੔ཧ ०ͷ໺ࡊϨγϐ΍ ϝΠϯʹ࢖͑ΔϨγϐ͕ ͙͢ʹݟ͔ͭΔ "MFYBεΩϧ ࢖͍͍ͨࡐྉ͚ͩͰ ͙͢ʹ࡞ΕΔਓؾͷϨγϐఏҊ ྉཧ͖Ζ͘ ࡱΔ͚ͩͰه࿥ʹʂ ͋ͳͨͷ͓ྉཧࣸਅΛ ࣗಈͰ੔ཧ Ϩγϐͷͦͷઌ΁ ͓͍͍͠εϚʔτΩονϯ 0J$Z

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ਓ਺ ʢׅހ಺͸.-ܥͷਓ਺ʣ ਓ ਓ ਓ ਓ ਓ ਓ ϋʔυ΢ΣΞܥͷνʔϜ͕ ผ෦໳ͱͯ͠εϐϯΞ΢τ

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.-ܥͷτϐοΫʢҰྫʣ ࣗવݴޠॲཧ ɾ&ODPEFS%FDPEFSʹΑΔࡐྉ໊ͷਖ਼نԽ ɾ-45.ʹΑΔඇखॱͷݕग़ ɾGBTU5FYUʹΑΔࡐྉͷϨίϝϯυ ը૾ೝࣝ ɾ*ODFQUJPOWʹΑΔྉཧࣸਅͷநग़΍෼ྨ ɾ.PCJMF/FUʹΑΔݟӫ͑͢Δྉཧࣸਅͷநग़ ɾ43("/ʹΑΔྉཧࣸਅͷ௒ղ૾ .-0QT ɾ4MBDL$IBU#PUʹΑΔ&$Πϯελϯεͷ؅ཧ ɾ%PDLFSͱDPPLJFDVUUFSʹΑΔϓϩδΣΫτͷ؅ཧ ɾ&$4ʹΑΔΞϓϦͷσϓϩΠ΍%8)ʹΑΔσʔλͷ؅ཧ ΦʔϓϯαΠΤϯε ɾݚڀ༻Ϩγϐσʔλͷެ։ʢXࠃཱ৘ใֶݚڀॴʣ ɾ֤छίϯϖςΟγϣϯͷ࣮ࢪʢX಺ֳ෎ɺਓ޻஌ೳֶձɺʜʣ ɾ࿦จͷࣥචʢ೥Ͱຊ͕࠾࿥ʣ .-ܥ͸ਓ