サービス開発、機械学習、クラウド / the trinity of machine learning

by Yuichiro Someya

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αʔϏε։ൃɺػցֶशɺΫϥ΢υ !2JJUBº.JDSPTPGUڞ࠵.FFU6Q

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ࣗݾ঺հ છ୩༔Ұ࿠<:VJDIJSP4PNFZB> ౦ژ޻ۀେֶେֶӃܭࢉ޻ֶम࢜ ΫοΫύουגࣜձࣾݚڀ։ൃ෦  ϦαʔνΤϯδχΞ೥݄d ػցֶशج൫ͷ੔උɺϨγϐσʔλͷ෼ੳ౳ UXJUUFSDPN!BZFNPT@Z HJUIVCDPNBZFNPT XXXBZFNPTNF TQFBLFSEFDLDPNBZFNPT

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ʰιϑτ΢ΣΞΛ༻͍ͨαʔϏε։ൃͱ͍͏ ଟ෼݁ߏ ਎ۙͳ  ݱ৔͔Βػցֶशͱ͍͏ٕज़ΛݟͭΊɺ෇͖߹͍ํΛߟ͑Δճʱ ओͳର৅ ػցֶशΛ࢖ͬͯސ٬ʹՁ஋Λಧ͚͍ͨਓ ?Έ͍ͨͳਓ͕ճΓʹ͍Δਓ

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໨࣍ ͍ΖΜͳػցֶश αʔϏε։ൃͱػցֶश Ϋϥ΢υͱ͍͏બ୒ࢶ ਓ޻஌ೳϒʔϜͱݬ໓ظ

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໨࣍ ͍ΖΜͳػցֶश αʔϏε։ൃͱػցֶश Ϋϥ΢υͱ͍͏બ୒ࢶ ਓ޻஌ೳϒʔϜͱݬ໓ظ

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͍ΖΜͳػցֶश ػցֶशҰൃউෛͷιϦϡʔγϣϯʗ੡඼։ൃ ྫࣗಈӡసɺݕࡧ΍຋༁ ٕज़తഉଞੑͷཁҼͱͯ͠ͷػցֶश େن໛ͳࣗಈԽʹΑΔܻഒͷվળن໛ɺͱ͔ͦ͏͍͏΍ͭ ͋·Γ਎ۙͰͳ͍

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͍ΖΜͳػցֶश ػցֶशΛར༻ͨ͠αʔϏεͷ։ൃʗվળ ྫهࣄͷࣗಈ෼ྨ΍Ϩίϝϯσʔγϣϯ ࣗࣾαʔϏεͰ ͪ͜Β΋ϒʔϜʹݗҾ͞ΕΔܗͰന೤Խ͍ͯ͠Δ ਓ޻஌ೳػցֶशαʔϏε։ൃͱ఻೻ʁ ͬͪ͜͸ׂͱ਎ۙɻࠓ೔͸͜͜ͷ࿩Λ͠·͢ɻ

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໨࣍ ͍ΖΜͳػցֶश αʔϏε։ൃͱػցֶश Ϋϥ΢υͱ͍͏બ୒ࢶ ਓ޻஌ೳϒʔϜͱݬ໓ظ

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αʔϏε։ൃͱػցֶश ιϑτ΢ΣΞ αʔϏε։ൃͰػցֶशΛ࢖͍͍ͨͱ͍͏  χʔζ͕૿͍͑ͯΔ ਓ޻஌ೳϒʔϜʹґΔͱ͜Ζ͕େ͖͍ ଟ෼ ʰػցֶशΛ࢖͏ʱͱ͸ʁ

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ʰػցֶशΛ࢖͏ʱͱ͸ ػցֶशʹΑΔαʔϏεՁ஋ͷ૑ग़ʗ޲্ ྫهࣄͷࣗಈ෼ྨ΍Ϩίϝϯσʔγϣϯ ࣗࣾαʔϏεͰ ͜ΕΛɺαʔϏε։ൃͱಉ͡౔ඨͰ΍Ζ͏ͱ͍͏࿩ ۃ࿦Λݴ͑͹ʰϘλϯͷ৭ʗେ͖͞Λม͑Δʱͷͱಉ͡ ։ൃϓϩηεɺ։ൃίετɺٕज़తෛ࠴ɺ౳ʑ͕ొ৔

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ਗ਼͘ਖ਼͘͠ػցֶशΛ࢖͏ͨΊʹ ։ൃʹ͔͔Δظؒͱίετ͸ʁಘΒΕΔՁ஋͸ʁ  ແ࿦ɺϒʔϜΛ౿·͑ͯଟΊʹ౤ࢿΛ͢Δͷ΋ͭͷબ୒ࢶ αʔϏεͷվળεϐʔυʹ͍ͭͯདྷΕΔʁ  དྷΕͳ͍ͱͨ͠ΒͲΕ͘Β͍Ϊϟοϓ͕͋Δʁ ӡ༻ίετ͸ͲΕ͘Β͍ʁ

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ʰਫ਼౓ʱͱʰՁ஋ʱ ࢀߟIUUQTXXXTMJEFTIBSFOFU5PLPSPUFO/BLBZBNBTT αʔϏεͷՁ஋' ػցֶशϞσϧͷਫ਼౓ ͱͨ࣌͠ɺ  '͸ͲͷΑ͏ͳܗ͔ʁ ͦΕΛ౿·͑ͯͲͷΑ͏ͳظ଴஋Λઃఆ͢Δ͔ ग़དྷΕ͹αʔϏεͷاըʗઃܭΛ͢Δ࣌ʹ͜ΕΛݕ౼͢΂͖ αʔϏεͷվળϓϩηεʹػցֶशϞσϧ͕ר͖ࠐ·ΕΔ

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ػցֶशͷվળϓϩηε ྫهࣄͷࣗಈ෼ྨ ࣗಈهࣄ෼ྨثͷΧςΰϦʹ  ʰಈ෺ʱΛ଍ͯ͠Έ͍ͨ σʔλऩूͱ෼ੳɺϞσϧͷֶश΋  ͋Δ͔Βिؒ͘Β͍͔͔Δͳ Ϛδ͔

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ػցֶशͷվળϓϩηε ྫهࣄͷࣗಈ෼ྨ ࣗಈهࣄ෼ྨثͷΧςΰϦʹ  ʰಈ෺ʱΛ଍ͯ͠Έ͍ͨ σʔλऩूͱ෼ੳɺϞσϧͷֶश΋  ͋Δ͔Βिؒ͘Β͍͔͔Δͳ Ϛδ͔

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ػցֶशͷվળϓϩηε ྫهࣄͷࣗಈ෼ྨ ࣗಈهࣄ෼ྨثͷΧςΰϦʹ  ʰಈ෺ʱΛ଍ͯ͠Έ͍ͨ σʔλऩूͱ෼ੳɺϞσϧͷֶश΋  ͋Δ͔Βिؒ͘Β͍͔͔Δͳ Ϛδ͔ αʔϏε։ൃͱϞσϧ։ൃͷ  εϐʔυײʹΪϟοϓ͕͋Δ  ௗͷը૾෼ྨʹ೥͸͔͔Βͳ͍͕ʜ

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ػցֶशͷվળϓϩηε αʔϏεͷՁ஋' ػցֶशϞσϧͷਫ਼౓ αʔϏεʗϞσϧͷվળεϐʔυʹΪϟοϓ͕͋Δ αʔϏε։ൃʹ͓͍ͯ໽հͳίϯϙʔωϯτʹͳΓͭͭ͋Δ ࣅͨલྫͱͯ͠͸ݕࡧΤϯδϯͱ͔ʁ

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ػցֶशͱӡ༻ίετ ʰػցֶश͸ٕज़తෛ࠴ͷߴརି͠ ҙ༁ ʱ  IUUQTSFTFBSDIHPPHMFDPNQVCTQVCIUNM σʔλͷऩूʗ෼ੳʗ؅ཧ ϞσϧͷσϓϩΠͱϞχλϦϯά

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͜͜·Ͱ αʔϏε։ൃͷݱ৔ͰػցֶशΛ࢖ͬͯՁ஋ΛੜΈग़͍ͨ͠ ಘΒΕΔՁ஋' Ϟσϧͷਫ਼౓ Λྫྷ੩ʹݟͭΊΔ΂͖ αʔϏε։ൃͷεϐʔυײͷ଍͔ͤʹͳΒͳ͍Α͏ʹ஫ҙ Ҏ্ӡ༻ίετΛ౿·͑ͯɺຊ౰ʹ΍Δ΂͖͔ߟ͑Δ

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͜͜·Ͱ αʔϏε։ൃͷݱ৔ͰػցֶशΛ࢖ͬͯՁ஋ΛੜΈग़͍ͨ͠ ಘΒΕΔՁ஋' Ϟσϧͷਫ਼౓ Λྫྷ੩ʹݟͭΊΔ΂͖ αʔϏε։ൃͷεϐʔυײͷ଍͔ͤʹͳΒͳ͍Α͏ʹ஫ҙ Ҏ্ӡ༻ίετΛ౿·͑ͯɺຊ౰ʹ΍Δ΂͖͔ߟ͑Δ ωΨςΟϒ

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ػցֶशͱαʔϏεͷվળϓϩηε Ͳ͏͢Ε͹ʁ εϐʔυʹΪϟοϓ͕͋Δͱ͍͏ೝࣝ߹Θͤ  ϓϩηεͷݟ௚͠ ͳΔ΂͘ૣ͘͢Δ ྫػցֶश޻ֶ

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ػցֶश޻ֶ ػցֶशʹؔ͢Δ։ൃϓϩηεͷվળ ػցֶश޻ֶݚڀձͱ͍͏΋ͷ΋ग़དྷͨΈ͍ͨ  IUUQTTJUFTHPPHMFDPNWJFXTJHNMTF ՝୊ҙࣝ͸ߴ·͍ͬͯΔ

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ػցֶशͷӡ༻ίετ Ͳ͏͢Ε͹ʁ ӡ༻ίετΛ౿·͑ͯऔΓ૊Ή΂͖͔ܾΊΔ  ແ࿦ɺϒʔϜΛ౿·͑ͯଟΊʹ౤ࢿΛSZ ػցֶशϓϥοτϑΥʔϜͱ͍͏બ୒ࢶ

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໨࣍ ͍ΖΜͳػցֶश αʔϏε։ൃͱػցֶश Ϋϥ΢υͱ͍͏બ୒ࢶ ਓ޻஌ೳϒʔϜͱݬ໓ظ

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ػցֶशϓϥοτϑΥʔϜ ֤छΫϥ΢υϓϥοτϑΥʔϜͷػցֶशαϙʔτ͕ന೤Խͯ͠Δ "NB[PO4BHF.BLFS "[VSF.BDIJOF-FBSOJOH4UVEJP (PPHMF$MPVE.BDIJOF-FBSOJOH&OHJOF౳ʑ લड़ͨ͠Α͏ͳ໰୊ҙ͕ࣝߴ·͍ͬͯΔʁ

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ػցֶशͱΫϥ΢υ .-BB4ɺػցֶशϓϥοτϑΥʔϜͱ͍͏બ୒ࢶ͕͋Δ  ৽͍͠࿩୊ͳͷͰ༻ޠ͕৭ʑ ʰ࣮ݧ͔Βຊ൪ӡ༻·Ͱɺ౷߹తͳ؀ڥͰػցֶश͢Δʱ

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ػցֶशͱΫϥ΢υ .-BB4ɺػցֶशϓϥοτϑΥʔϜͱ͍͏બ୒ࢶ͕͋Δ  ৽͍͠࿩୊ͳͷͰ༻ޠ͕৭ʑ ʰ࣮ݧ͔Βຊ൪ӡ༻·Ͱɺ౷߹తͳ؀ڥͰػցֶश͢Δʱ σʔλऩूσʔλ෼ੳϞσϧߏஙֶशσϓϩΠ ͦΕͧΕͷ࣮ߦͱ؅ཧ

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֤छσʔλܥαʔϏεͱͷ౷߹  σʔλऩू෼ੳ άϥϑΟΧϧͳύΠϓϥΠϯߏங Ϟσϧߏஙֶश ࣮ݧ݁ՌͷαʔϏεԽ  σϓϩΠ ྫ"[VSF.BDIJOF-FBSOJOH4UVEJP

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ػցֶशͱΫϥ΢υ ̋ڞ௨ج൫ԽʹΑͬͯӡ༻ίετ͕࡟ݮग़དྷΔ ̋ج൫্ʹߏங͞ΕΔߴڃͳػೳͷԸܙ͕ड͚ΒΕΔ  "#ςετɺਫ਼౓ϞχλϦϯά౳ ଟ෼ɺকདྷతʹɺ ˚طଘϦιʔεͱͷ౷߹ίετ  ػցֶशʹݶΒͳ͍࿩ͳͷͰࠓճ͸εϧʔ ˚(FOFSJDBOE&YUFOTJWFͱ͍͏ཁ݅

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5'9"5FOTPS'MPX#BTFE1SPEVDUJPO4DBMF.BDIJOF-FBSOJOH1MBUGPSNΑΓ l5IFNBDIJOFMFBSOJOHQMBUGPSNNVTUCFHFOFSJD FOPVHIUPIBOEMFUIFNPTUDPNNPOTFUPGMFBSOJOH UBTLTBTXFMMBTCFFYUFOTJCMFUPTVQQPSUPOFP⒎ BUZQJDBMVTFDBTFTz IUUQTEMBDNPSHDJUBUJPODGN JE ҙ༁ .-BB4͸แׅత͔֦ͭுՄೳͰ͋Δ΂͖

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(FOFSJDBOE&YUFOTJWF ʰ࣮ݧ͔Βຊ൪ӡ༻·Ͱɺ౷߹తͳ؀ڥͰػցֶशʱ  ͠Α͏ͱ͍ͯ͠Δ (FOFSJDͳΔ΂͘ଟ͘ͷϢʔεέʔεʹ ಁաతʹ ରԠ͍ͨ͠ ྑ͍ந৅Խͱ"1*֦ॆͷؤுΓ &YUFOTJWFྫ֎తͳέʔεʹରͯ͠΋ গͳ͍࿑ྗͰ ରԠ͍ͨ͠ ೚ҙͷίʔυΛࠩ͠ࠐΊΔ৔ॴΛ༻ҙ͢Δɺͱ͔ʜ

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͜͜·Ͱ·ͱΊ

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໨࣍ ͍ΖΜͳػցֶश αʔϏε։ൃͱػցֶश Ϋϥ΢υͱ͍͏બ୒ࢶ ਓ޻஌ೳϒʔϜͱݬ໓ظ

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ਓ޻஌ೳϒʔϜ ʰୈ࣍ਓ޻஌ೳϒʔϜʱ ౓໨ͷౙ΁޲͔͍ͬͯΔʁ

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IUUQXXXHBSUOFSDPKQQSFTTIUNMQSIUNM

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IUUQXXXHBSUOFSDPKQQSFTTIUNMQSIUNM

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ਓ޻஌ೳϒʔϜ ਓ޻஌ೳ࣮ݱͷखஈͷ̍ͭͱͯ͠ͷػցֶशʹ΋஫໨͕ू·Δ ෼໺Λ໰Θͳ͍ػցֶशͷԠ༻ʹର͢Δظ଴͕͍͢͝ ιϑτ΢ΣΞ։ൃͷݱ৔Ͱ਎ۙʹ؍ଌͰ͖Δͷ͸?͜ΕͷҰ෦ ྫʮػցֶशͰͳΜͱ͔͢Δʯ

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ਓ޻஌ೳϒʔϜ ਓ޻஌ೳ࣮ݱͷखஈͷ̍ͭͱͯ͠ͷػցֶशʹ΋஫໨͕ू·Δ ෼໺Λ໰Θͳ͍ػցֶशͷԠ༻ʹର͢Δظ଴͕͍͢͝ ιϑτ΢ΣΞ։ൃͷݱ৔Ͱ਎ۙʹ؍ଌͰ͖Δͷ͸?͜ΕͷҰ෦ ྫʮػցֶशͰͳΜͱ͔͢Δʯ ظ଴ͱݱঢ়ͷΪϟοϓݬ໓ͷҼࢠ

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ਓ޻஌ೳϒʔϜ Ͳ͏͢Ε͹ʁ ਖ਼͘͠ظ଴͢Δ ͪ͜Β͸͋·ΓίϯτϩʔϧͰ͖ͳ͍ʜ ظ଴ʹԠ͑ΔҝʹؤுΔ ࠓ೔ͨ͠࿩ͱ͔

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·ͱΊ ػցֶश͕੝Γ্͕͍ͬͯΔ αʔϏε։ൃͱ͍͏จ຺Ͱ   Α͍෇͖߹͍ํΛ໛ࡧ͍͖͍ͯͨ͠ ӡ༻ίετɺਫ਼౓ͱՁ஋ͷؔ܎͕ॏཁͳΧΪ

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·ͱΊ ػցֶश͕੝Γ্͕͍ͬͯΔ αʔϏε։ൃͱ͍͏จ຺Ͱ   Α͍෇͖߹͍ํΛ໛ࡧ͍͖͍ͯͨ͠ ӡ༻ίετɺਫ਼౓ͱՁ஋ͷؔ܎͕ॏཁͳΧΪ ͦΕ͸ͦΕͱͯ͠ σΟʔϓϥʔχϯάͷՄೳੑ͸ੌ͍ ͱࢥ͏ ͷͰɺ஍ಓʹ΍͍ͬͯ͘

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͓ΘΓ