Wantedly の機械学習プロダクト開発を支える機械学習基盤 / #rejectcon2018

by Nao Minami

Slide 1

Slide 1 text

Slide 2

Slide 2 text

Slide 3

Slide 3 text

Slide 4

Slide 4 text

Slide 5

Slide 5 text

Slide 6

Slide 6 text

Slide 7

Slide 7 text

Slide 8

Slide 8 text

Slide 9

Slide 9 text

Slide 10

Slide 10 text

Slide 11

Slide 11 text

Slide 12

Slide 12 text

Slide 13

Slide 13 text

Slide 14

Slide 14 text

Slide 15

Slide 15 text

Slide 16

Slide 16 text

Slide 17

Slide 17 text

©2018 Wantedly, Inc. Ϣʔβʔಉ࢜ͷͭͳ͕ΓਪఆϩδοΫ w %FFQXBMLͱ͍͏ख๏Λར༻ w άϥϑʢͭͳ͕ΓΛ൓өͨ͠σʔλߏ଄ʣͷ্ΛϥϯμϜʹભҠ͢ΔϥϯμϜ΢ΥʔΫͱɺ 4LJQHSBNΛ૊Έ߹ΘͤΔख๏ w ޿ൣғͳάϥϑߏ଄Λ൓өͭͭ͠ɺܭࢉྔΛݱ࣮తͳྔʹ཈͑Δࣄ͕Ͱ͖Δ w άϥϑߏ଄Λ൓өͨ࣍͠ݩͷWFDUPSΛOPEF͝ͱʹੜ੒͠ɺͭͳ͕Γਪఆʹར༻ w ʮͭͳ͕Γਪఆʯͷਫ਼౓վળʹͭͳ͕ͬͨʂ w ৄࡉ͸ɺͷٕज़ॻయͰ൦෍͢Δ8"/5&%-:5&$)#00,ʹʮάϥϑͱػցֶशʯ ͱ͍͏λΠτϧͰ·ͱΊ͍ͯ·͢ɻ ؾʹͳͬͨํ͸ͪ͜Β΋ࢀর͍ͯͩ͘͠͞ʂ ϥϯμϜ΢ΥʔΫ

Slide 18

Slide 18 text

Slide 19

Slide 19 text

Slide 20

Slide 20 text

Slide 21

Slide 21 text

Slide 22

Slide 22 text

Slide 23

Slide 23 text

©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

Slide 24

Slide 24 text

Slide 25

Slide 25 text

Slide 26

Slide 26 text

Slide 27

Slide 27 text

Slide 28

Slide 28 text

Slide 29

Slide 29 text

Slide 30

Slide 30 text

Slide 31

Slide 31 text

©2018 Wantedly, Inc. σʔλΛஷΊΔج൫ w ͋ΒΏΔϩά΍σʔλΛ#JH2VFSZʹू໿ w ϩά΍σʔλू໿༻ͷج൫͕੔͍ͬͯΔ w (P 3VCZͳͲ֤ݴޠ༻ͷMPHHFSMJCSBSZqVFOUE w Ұ෦ɺ5SFBTVSF%BUBΛܦ༝ͯ͠#JH2VFSZ΁FYQPSU ೥ʹ#JH2VFSZ΁Ҡߦ໊ͨ͠࢒ w σʔλϕʔεͷσʔλಉظδϣϒ w ͋ΒΏΔϩά΍σʔλΛू໿ w Ϣʔβʔߦಈϩά w Πϕϯτϩά w σʔλϕʔεͷσʔλ w ֎෦࿈ܞαʔϏεʢFH4BMFTGPSDF ;FOEFTLʣͷσʔλ w ֤छΠϯϑϥϝτϦΫεʢ"QQMJDBUJPOMPH LVCFSOFUFTDMVTUFSMPH FUDʣ w FUD

Slide 32

Slide 32 text

Slide 33

Slide 33 text

Slide 34

Slide 34 text

Slide 35

Slide 35 text

©2018 Wantedly, Inc. σʔλΛ࢖͏ج൫ w ϚΠΫϩαʔϏεʮ"OBMZUJDTαʔϏεʯ͕ଘࡏ w σʔλΛఆظతʹՃ޻ɺ෼ੳ͢ΔͨΊͷαʔϏε w %4-Λར༻ͯ͠؆୯ʹ,VCFSFOFUFTͷ$SPO+PCʢఆظ࣮ߦδϣϒʣΛొ࿥Ͱ͖Δ w #JH2VFSZ#JH2VFSZɺ#JH2VFSZ3%4ͳͲͷॲཧ΋%4-Ͱ؆୯ʹهड़Մೳ w ϓϩάϥϜͰσʔλΛલॲཧͯ͠#JH2VFSZʹॻ͖໭͢͜ͱ΋Մೳ w ʮ3VCZͰ࡞Δσʔλ෼ੳج൫ʯͱ͍͏λΠτϧͰ3BJMT%.Ͱ஛໺͕ൃදͯ͠·͢ʂ #JH2VFSZ "OBMZUJDT 3%4

Slide 36

Slide 36 text

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

Slide 37

Slide 37 text

Slide 38

Slide 38 text

Slide 39

Slide 39 text

Slide 40

Slide 40 text

Slide 41

Slide 41 text

Slide 42

Slide 42 text

Slide 43

Slide 43 text

©2018 Wantedly, Inc. w ࠓ೥͔Β"NB[PO4BHF.BLFSΛಋೖ w ʮ։ൃʯɺʮֶशʯɺʮσϓϩΠʯ͕ߦ͑ΔػցֶशϓϥοτϑΥʔϜ w ֤εςοϓ͝ͱʹઐ༻ͷJOTUBODFΛཱͯͯར༻ w ։ൃ༻ͷίετͷ௿͍KVQZUFSJOTUBODFΛਓ͕઎༗ͯ͠ར༻ɻTBHFNBLFS MJCSBSZΛ௨ֶͯ͠श։࢝͢Δͱɺ.-JOTUBODF͕ద੾ͳ෼͚ͩىಈɻ w *".Ͱద੾ʹݖݶઃఆɻKVQZUFSJOTUBODFͷىಈTDSJQUͰηοτΞοϓɻ w EPDLFSDPOUBJOFSΛར༻ֶͯ͠शͰ͖Δɻ؀ڥ͸͔ͳΓࣗ༝౓Λ࣋ͬͯ࡞ΕΔɻ w ༷ʑͳϝϦοτ w ؀ڥηοτΞοϓͷίετ͕େ෯ʹݮͬͨ w ֶशऴྃޙʹ(16JOTUBODF͕উखʹTUPQ͢ΔͷͰɺ໘౗ͳӡ༻͕ෆཁʹͳͬͨ w 4BHF.BLFSʹ͍ͭͯ͸ɺͷ"84%FW%BZͰ͞ΒʹৄࡉΛ࿩͢༧ఆɻڵຯͷ ͋Δํ͸ͪ͜Β΋ͥͻʂ ֶश؀ڥ

Slide 44

Slide 44 text

Slide 45

Slide 45 text

Slide 46

Slide 46 text

©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

Slide 47

Slide 47 text

©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

Slide 48

Slide 48 text

Slide 49

Slide 49 text

Slide 50

Slide 50 text

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

Slide 51

Slide 51 text

©2018 Wantedly, Inc. w ֤SFQPTJUPSZʹɺTDSJQUFWBMVBUFΛઃஔ w TDSJQUFWBMVBUFΛ࣮ߦ͢ΔͱɺP⒐JOFධՁ͕ߦΘΕͯɺධՁ݁Ռ͕ग़ྗ͞ΕΔ w P⒐JOFධՁσʔλΛ؅ཧ͢ΔπʔϧʮFWʯ w FWFWBMVBUJPOEBUBNBOBHFNFOUUPPM w FWDMJͱFWKPCHFOͷ૊Έ߹ΘͤͰػೳΛఏڙ w IUUQTHJUIVCDPNXBOUFEMZFWDMJ w IUUQTHJUIVCDPNXBOUFEMZFWKPCHFO PGGMJOFධՁͷϨʔϧ

Slide 52

Slide 52 text

©2018 Wantedly, Inc. w ֶशޙͷP⒐JOFධՁσʔλ؅ཧ w FWDMJ͕࣮૷ w P⒐JOFධՁ݁ՌΛϞσϧͷόʔδϣϯɺϋΠύʔύϥϝʔλɺֶशσʔλͷόʔδϣϯͱͱ΋ ʹอଘ͢Δʢ࠶ݱੑͷ͋ΔධՁ݁Ռʣ w ఆظతͳNBTUFSCSBODI NBTUFSEBUBͰͷ P⒐JOFධՁσʔλ؅ཧ w FWKPCHFO͕࣮૷ w ຖ೔P⒐JOFධՁͱFWDJMͰͷධՁ݁ՌͷอଘΛߦͬͯɺP⒐JOFධՁ݁Ռͷվળͷྺ࢙Λ࢒͢ FWͷػೳ

Slide 53

Slide 53 text

©2018 Wantedly, Inc. FWDMJͷΞʔΩςΫνϟ #JH2VFSZ 4 5BSHFU.-TFSWJDF ATDSJQUFWBMVBUFAΛ࣮ߦͯ͠P⒐JOFධՁ w PVUUYUͱNFUSJDTKTPOΛੜ੒ AFWVQMPBEAΛ࣮ߦ w 4΁ܾ·ͬͨGPSNBUͰධՁσʔλΛVQMPBE w CSBODI DPNNJU IZQFSQBSBNFUFSͳͲ΋ಉ࣌ʹVQMPBE 4͔Β-BNCEBͰ#JH2VFSZ΁TUSFBNJOHJOTFSU w FWFYQPSUͱ͍͏ࣾ಺TFSWJDFͰ؅ཧ͞Εͨ-BNCEB -BNCEB

Slide 54

Slide 54 text

Slide 55

Slide 55 text

Slide 56

Slide 56 text

Slide 57

Slide 57 text

Slide 58

Slide 58 text

©2018 Wantedly, Inc. w ,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#

Slide 59

Slide 59 text

©2018 Wantedly, Inc. w ,VCFSOFUFTΛར༻ w ϝϦοτΠϯϑϥΤϯδχΞ͕શؔ͘༩ͤͣʹ৽͍͠"1*TFSWFSΛݐͯΒΕΔ w ඞཁͳͷ͸ֶशࡁΈϞσϧͱ4FSWFS࣮૷ͱ%PDLFSpMFͷΈ w ͞Βʹɺ4FSWFS࣮૷ͷେ෦෼͸DPPLJFDVUUFSNMςϯϓϨʔτͰఏڙ w EFQMPZखॱͷυΩϡϝϯτ΋੔උ͞Ε͓ͯΓɺEFQMPZ༻ͷศརͳࣾ಺πʔϧ΋ଘࡏ "1*TFSWFSΛ༻ҙ͢Δํ๏ .-DBUFHPSJ[FS .-SFDPNNFOEFS" .-SFDPNNFOEFS# ΨϯΨϯ"1*TFSWFSΛ ݐͯΔ͜ͱ͕Ͱ͖Δ؀ڥʂ

Slide 60

Slide 60 text

©2018 Wantedly, Inc. w ,VCFSOFUFTͷ$SPO+PCΛར༻ w ڠௐϑΟϧλϦϯάͳͲɺશମਪ࿦͢Δ΋ͷ͸είΞΛόονܭࢉ͢Δ w ܭࢉ݁Ռ͸3%4΍3FEJTͳͲɺ"QQMJDBUJPO͔Βར༻͠΍͍͢σʔλετΞʹอଘ w είΞΛฦ͢"1*TFSWFSΛݐͯΔࣄ΋͋Δ w ඞཁͳͷ͸ίʔυͱ%PDLFSpMFͱϚχϑΣετϑΝΠϧͷΈ είΞΛόονܭࢉ͢Δํ๏ .-+PC 3%4 3FEJT "QQMJDBUJPO είΞॻ͖ग़͠ είΞಡΈࠐΈ

Slide 61

Slide 61 text

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

Slide 62

Slide 62 text

©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

Slide 63

Slide 63 text

Slide 64

Slide 64 text

Slide 65

Slide 65 text

Slide 66

Slide 66 text

Slide 67

Slide 67 text

Slide 68

Slide 68 text

Slide 69

Slide 69 text

Slide 70

Slide 70 text

Slide 71

Slide 71 text

©2018 Wantedly, Inc. w σʔλج൫ʜ#JH2VFSZ4"OBMZUJDT w σʔλ෼ੳ؀ڥΛ੔͑ΔͨΊ೥ʹ5SFBTVSF%BUBɺ೥ʹ#JH2VFSZ"OBMZUJDTಋೖ w ֶशʜ(16JOTUBODF4BHF.BLFS w ೥͔Β(16JOTUBODFΛར༻ɺ೥ʹ4BHF.BLFSΛಋೖ w ධՁʜTDSJQUFWBMVBUFFW w ೥͔ΒFWΛ։ൃɺಋೖͯ͠ϨʔϧΛෑ͍ͨ w σϓϩΠʜ,VCFSOFUFT (16DMVTUFS w ೥͔Β,VCFSOFUFTར༻ɺ೥͔Β(16DMVTUFSΛར༻ w ܭଌʜϩάܭଌ"#UFTU 8BOUFEMZͷػցֶशج൫ͷྺ࢙