Wantedly の機械学習プロダクト開発を支える機械学習基盤 / #d3m

by Nao Minami

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©2018 Wantedly, Inc. ͭͳ͕ΓਪఆϩδοΫ w %FFQ8BMLͱ͍͏ख๏Λར༻ w άϥϑʢͭͳ͕ΓΛ൓өͨ͠σʔλߏ଄ʣͷ্ΛϥϯμϜʹભҠ͢ΔϥϯμϜ΢ΥʔΫͱɺ 8PSEWFDͷ4LJQ(SBNΛ૊Έ߹ΘͤΔख๏ w ϥϯμϜ΢ΥʔΫͰಘΒΕͨܥྻΛֶशσʔλͱͯ͠8PSEWFDʹΑΔֶश΁ར༻ w άϥϑߏ଄Λ൓өͨ͠WFDUPSΛOPEF͝ͱʹੜ੒ w ࣅͨWFDUPSΛ࣋ͭOPEFಉ࢜͸ͭͳ͕͍ͬͯΔՄೳੑ͕ߴ͘ɺͭͳ͕Γͷਪఆ͕Մೳ w ޿ൣғͳάϥϑߏ଄Λ൓өͭͭ͠ɺܭࢉྔΛݱ࣮తͳྔʹ཈͑Δࣄ͕Ͱ͖Δ ϥϯμϜ΢ΥʔΫ ߴਫ਼౓ͷͭͳ͕ΓਪఆΛݱ࣮తͳܭࢉྔ Ͱ࣮ݱ

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©2018 Wantedly, Inc. ϓϩμΫτνʔϜʹػցֶशΤϯδχΞ͕͍Δཧ༝ w ʮϓϩμΫτʹͱͬͯՁ஋͋ΔվળʯΛߦ͍΍͍͢ w ίϯςΩετΛڞ༗͍ͯ͠ΔͷͰద੾ͳλεΫઃఆɺΰʔϧઃఆ͕Ͱ͖Δ w ϓϩμΫτʹͱͬͯίΞͳՁ஋ΛੜΈग़͢͜ͱʹ੹೚Λ΋ͯΔ w ϦϦʔεʹ޲͚ͯओମతʹಈ͚Δ w σʔλΛαʔϏεͷࢹ఺͔Βଊ͑Δ͜ͱ͕Ͱ͖Δ w FHεύϜߦಈΛߦ͏ϢʔβʔͷߦಈϩάͳͲΛద੾ʹѻ͏͜ͱ͕Ͱ͖Δ

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©2018 Wantedly, Inc. σʔλΛஷΊΔج൫ w ͋ΒΏΔϩά΍σʔλΛ#JH2VFSZʹू໿ w ϩά΍σʔλू໿༻ͷج൫͕੔͍ͬͯΔ w (P 3VCZͳͲ֤ݴޠ༻ͷMPHHFSMJCSBSZqVFOUE w σʔλϕʔεͷσʔλಉظδϣϒ w ͋ΒΏΔϩά΍σʔλΛू໿ w Ϣʔβʔߦಈϩά w Πϕϯτϩά w σʔλϕʔεͷσʔλ w ֎෦࿈ܞαʔϏεʢFH4BMFTGPSDF ;FOEFTLʣͷσʔλ w ֤छΠϯϑϥϝτϦΫεʢ"QQMJDBUJPOMPH LVCFSOFUFTDMVTUFSMPH FUDʣ w FUD

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©2018 Wantedly, Inc. w ࠓ೥͔Β"NB[PO4BHF.BLFSΛಋೖ w "NB[PO4BHF.BLFS͸ʮ։ൃʯʮֶशʯʮσϓϩΠʯ͕ߦ͑ΔػցֶशϓϥοτϑΥʔϜ w ֤εςοϓ͝ͱʹઐ༻ͷJOTUBODFΛཱͯͯར༻ w ։ൃ༻ͷίετͷ௿͍/PUFCPPL*OTUBODFΛਓ͕઎༗ͯ͠ར༻ɻTBHFNBLFSTELΛ௨ ֶͯ͠श։࢝͢Δͱ5SBJOJOH*OTUBODF͕ద੾ͳ෼͚ͩىಈɻ w *".Ͱద੾ʹݖݶઃఆɻ/PUFCPPL*OTUBODFͷىಈTDSJQUͰηοτΞοϓɻ w EPDLFSDPOUBJOFSΛར༻ֶͯ͠शͰ͖Δɻ؀ڥ͸͔ͳΓࣗ༝౓Λ࣋ͬͯ࡞ΕΔɻ w ༷ʑͳϝϦοτ w ։ൃֶशʹར༻ɻ؀ڥηοτΞοϓͷίετ͕େ෯ʹݮͬͨɻ w ֶशऴྃޙʹ(16JOTUBODF͕উखʹTUPQ͢ΔͷͰɺ໘౗ͳӡ༻͕ෆཁʹͳͬͨ w "NB[PO4BHF.BLFSʹ͍ͭͯ͸ɺͷ"84%FW%BZͰ࿩ͨ͠ͷͰৄࡉ͸ͪ͜Βʂ ։ൃֶश؀ڥ IUUQTTQFBLFSEFDLDPNTPVUIOVNCFSBXTEFWEBZ

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©2018 Wantedly, Inc. w DPPLJFDVUUFSNMUFNQMBUFͰ։ൃΛߴ଎Խ w ػցֶशϓϩδΣΫτΛ܁Γฦ͢͠͏ͪʹɺࣾ಺ϕετϓϥΫςΟε͕ݟ͖͑ͯͨ w SFQPTJUPSZͷTFUVQॲཧΛANBLFCPPUTUSBQAʹ౷Ұ w ֶशσʔλΛ4ͱ΍ΓͱΓ͢ΔͨΊͷπʔϧΛར༻ w %PDLFSpMFΛར༻ w ֶशͷFOUSZQPJOUΛANBLFUSBJOAʹ౷Ұ w ධՁͷFOUSZQPJOUΛATDSJQUFWBMVBUFAʹ౷Ұ w ֶश࣌ͱਪ࿦࣌ͷલॲཧNPEVMFΛ౷Ұ w "1*TFSWFSͷUFNQMBUF࣮૷Λར༻ w ϕετϓϥΫςΟεͷపఈ։ൃޮ཰Խͷҝʹɺࣾ಺༻DPPLJFDVUUFSNMUFNQMBUFΛ༻ҙ w ։ൃ΍ֶशɺͦͷޙͷϑϩʔ͕ߴ଎Խʂ ։ൃֶश

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©2018 Wantedly, Inc. w DPPLJFDVUFSUFNQMBUFͰ։ൃΛߴ଎Խ w ػցֶशϓϩδΣΫτΛ܁Γฦ͢͠͏ͪʹɺࣾ಺ϕετϓϥΫςΟε͕ݟ͖͑ͯͨ w SFQPTJUPSZͷTFUVQॲཧΛANBLFCPPUTUSBQAʹ౷Ұ w ֶशσʔλΛ4΁഑ஔɺ4͔ΒSFQPTJUPSZ΁μ΢ϯϩʔυ΍ٯʹ4΁Ξοϓϩʔυ ͢ΔͨΊͷπʔϧΛར༻ w %PDLFSpMFͷར༻ w ֶशͷFOUSZQPJOUΛANBLFUSBJOAʹ౷Ұ w ධՁͷFOUSZQPJOUΛATDSJQUFWBMVBUFAʹ౷Ұ w ֶश࣌ͱਪ࿦࣌ͷલॲཧNPEVMFΛ౷Ұ w "1*TFSWFSͷUFNQMBUF࣮૷Λར༻ w ϕετϓϥΫςΟεͷపఈπʔϧར༻؆ศԽͷҝʹɺDPPLJFDVUUFSUFNQMBUFΛ༻ҙͨ͠ ֶश ։ൃֶश؀ڥͷ੔උ͕ਐΜͩ

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©2018 Wantedly, Inc. w ՝୊ݩʑɺ֤.-SFQPTJUPSZͰόϥόϥʹ P⒐JOFධՁ݁ՌΛ؅ཧ͍ͯͨ͠ w ଟ͘ͷ.-SFQPTJUPSZ͸ɺධՁTDSJQUΛόϥόϥͷ໊લͰઃஔͯ͠ɺ4΁VQMPBE w υΩϡϝϯτ͕ແ͚Ε͹ɺP⒐JOFධՁͷ࣮ߦํ๏΍Ӿཡํ๏΋෼͔Βͳ͍ w JUFN͝ͱͷ݁ՌΛݟͨͯ͘΋ɺݟΔํ๏͕෼͔Βͳ͍ w ղܾࡦP⒐JOFධՁʹؔͯ͠ϨʔϧΛෑ͘͜ͱ ʹͨ͠ ධՁ

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©2018 Wantedly, Inc. P⒐JOFධՁσʔλ؅ཧ༻ͷࣗࣾ੡044ʮFWʯ w FWFWBMVBUJPOEBUBNBOBHFNFOUUPPMɻFW͸ͭͷػೳΛఏڙɻ PGGMJOFධՁͷϨʔϧ ֶशޙͷP⒐JOFධՁσʔλ؅ཧ w FWDMJ IUUQTHJUIVCDPNXBOUFEMZFWDMJ ͕࣮૷ w P⒐JOFධՁ݁ՌΛϞσϧͷόʔδϣϯɺϋΠύʔύϥϝʔλɺֶशσʔλͷόʔδϣϯͱͱ ΋ʹอଘ͢Δʢ࠶ݱੑͷ͋ΔܗͰධՁ݁ՌΛอଘʣ ఆظతͳNBTUFSCSBODIͰͷP⒐JOFධՁ࣮ߦ w FWKPCHFO IUUQTHJUIVCDPNXBOUFEMZFWKPCHFO ͕࣮૷ w ຖ೔NBTUFSCSBODIͰP⒐JOFධՁͷ࣮ߦͱධՁ݁ՌͷอଘΛߦͬͯɺվળͷྺ࢙Λ࢒͢

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©2018 Wantedly, Inc. FWKPCHFOͷػೳ w P⒐JOFධՁͱFWDMJΛఆظ࣮ߦ͢Δ ,VCFSOFUFT$SPO+PCΛొ࿥ w :BNMͰ࠷খͷఆٛΛॻ͘ͱɺP⒐JOFධՁͱFWDMJΛ࣮ߦ͢Δ$SPO+PC͕ొ࿥͞ΕΔ w ຖ೔֤.-SFQPTJUPSZͷNBTUFSͰͷP⒐JOFධՁ݁ՌΛ࢒͠ଓ͚Δ $SPO+PC" $SPO+PC# FWKPCHFO ొ࿥ ొ࿥ ܧଓతͳϞσϧධՁͷ ج൫͕੔උ͞Εͨ

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©2018 Wantedly, Inc. w "1*4FSWFSʹ͸,VCFSOFUFTΛར༻ w ϝϦοτΠϯϑϥΤϯδχΞ͕શؔ͘༩ͤͣʹ৽͍͠"1*TFSWFSΛݐͯΒΕΔ w ඞཁͳͷ͸ֶशࡁΈϞσϧͱ4FSWFS࣮૷ͱ%PDLFSpMFͱϚχϑΣετϑΝΠϧͷΈ w ͞Βʹɺ4FSWFS࣮૷ͷେ෦෼͸DPPLJFDVUUFSNMςϯϓϨʔτͰఏڙ w ϚχϑΣετϑΝΠϧ΋ɺࣾ಺ςϯϓϨʔτ͕ଘࡏ w EFQMPZखॱͷυΩϡϝϯτ΋੔උ͞Ε͓ͯΓɺEFQMPZ༻ͷศརͳࣾ಺πʔϧ΋ଘࡏ "1*TFSWFSΛ༻ҙ͢Δํ๏ .-DBUFHPSJ[FS .-SFDPNNFOEFS" .-SFDPNNFOEFS#

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©2018 Wantedly, Inc. ิ଍,VCFSOFUFTͱ͸ w ,VCFSOFUFT͸ίϯςφΦʔέετϨʔγϣϯ πʔϧ w %PDLFSDPOUBJOFSΛΫϥελͷOPEFʹׂΓ౰ͯͯ͘ΕΔ w Ϋϥελ͕Ұ౓ߏங͞ΕΕ͹ɺ༷ʑͳDPOUBJOFSΛ؆୯ʹಈ͔͢ࣄ͕Ͱ͖Δ w Φʔτεέʔϧͯ͠ɺෛՙʹରͯ͠ॊೈʹରԠ͢Δࣄ΋Մೳ w 8BOUFEMZͰ͸ɺ,VCFSOFUFTΫϥελ্ʹϚΠΫϩαʔϏεΛߏங͍ͯ͠Δʢ໿αʔϏεʣ 4FSWJDF" 4FSWJDF# 4FSWJDF$

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©2018 Wantedly, Inc. w είΞͷόονܭࢉʹ͸,VCFSOFUFTͷ $SPO+PCΛར༻ w ڠௐϑΟϧλϦϯάͳͲɺશମਪ࿦͢Δ΋ͷ͸είΞΛόονܭࢉ͢Δ w ܭࢉ݁Ռ͸3%4΍3FEJTͳͲɺ"QQMJDBUJPO͔Βར༻͠΍͍͢σʔλετΞʹอଘ w ඞཁͳͷ͸ίʔυͱ%PDLFSpMFͱϚχϑΣετϑΝΠϧͷΈ είΞΛόονܭࢉ͢Δํ๏ .-+PC 3%4 3FEJT "QQMJDBUJPO είΞॻ͖ग़͠ είΞಡΈࠐΈ

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©2018 Wantedly, Inc. w (16JOTUBOUFͰ૊Μͩ,VCFSOFUFTDMVTUFS ΋༻ҙ͍ͯ͠Δ w σΟʔϓϥʔχϯάͳͲ(16Λ࢖͏λεΫͰ͋ͬͯ΋ɺ,VCFSOFUFTDMVTUFS΁؆୯ʹσ ϓϩΠͰ͖Δ w $SPO+PCͰͷֶशɾਪ࿦ʹར༻ w (PPHMF,VCFSOFUFT&OHJOFΛར༻ ,VCFSOFUFTDMVTUFSͷ؀ڥ %FFQ-FBSOJOH4FSWJDF" %FFQ-FBSOJOH4FSWJDF# ,VCFSOFUFTΛ׆༻ͯ͠ σϓϩΠج൫͸੔උ

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©2018 Wantedly, Inc. w σʔλج൫ʜ#JH2VFSZ4 w σʔλ෼ੳ؀ڥΛ੔͑ΔͨΊ೥ʹ5SFBTVSF%BUBɺ೥ʹ#JH2VFSZಋೖ w ։ൃֶशʜ"NB[PO4BHF.BLFS w ೥ʹ"NB[PO4BHF.BLFSΛಋೖ w ධՁʜFW w ೥͔ΒFWΛ։ൃɺಋೖͯ͠ϨʔϧΛෑ͍ͨ w σϓϩΠʜ,VCFSOFUFT w ೥͔Β,VCFSOFUFTར༻ w ܭଌʜϩάܭଌ"#UFTU 8BOUFEMZͷػցֶशج൫ͷྺ࢙