機械学習をスモールスタートさせる方法 / small machine learning

https://d3m.connpass.com/event/104858/

Transcript

1. ػցֶशΛεϞʔϧελʔτ ͤ͞Δํ๏ ΫοΫύουגࣜձࣾ
   છ୩
   ༔Ұ࿠ 
   %BUB
   %SJWFO
   %FWFMPQFS
   .FFUVQ
   
   
2. ࣗݾ঺հ  છ୩
   ༔Ұ࿠
   <BZFNPT>
    ΫοΫύουגࣜձࣾ
   ೥৽ଔೖࣾ
    ݚڀ։ൃ෦
   ΤϯδχΞ
    ػցֶशج൫ɺը૾ೝࣝܥͷݚڀ։ൃ
3. ΫοΫύουͱػցֶश  ΫοΫύουݚڀ։ൃ෦
    ೥݄ʹൃ଍
   ࢲ͕഑ଐ͞Εͨͷ΋ಉ࣌ظ
    ౰࣌͸໊ͷϝϯόʔ
    ೥݄ݱࡏ͸ࠃ಺ʹ໊
   
   ւ֎ʹ໊
    ʰສͷϨγϐσʔλΛ׆༻͠ɺϢʔβʔʹՁ஋Λಧ͚Δʱ
4. ࠓ೔ͷτϐοΫ  ػցֶश ओʹਂ૚ֶश Λ
 εϞʔϧελʔτͤ͞Δํ๏
    ͳͥεϞʔϧελʔτ͕ඞཁ͔
    Ͳ͏΍Δͷ͔
5. ࠓ೔ͷτϐοΫ  ٕज़ʗέʔεελσΟগͳΊɺ
 ίϯηϓτଟΊͷ࿩ʹͳΓ·͢
    աڈʹٕͨ͠ज़తͳ࿩͸ͪ͜Β
 IUUQTTQFBLFSEFDLDPNBZFNPT
6. ਂ૚ֶशͱεϞʔϧελʔτ
7. ਂ૚ֶशͱεϞʔϧελʔτ 4NBMM
   TUBSU
   εϞʔϧελʔτ
   4UBSU
   TNBMM
8. lUIJOLJOH
   CJH
   TUBSUJOH
   TNBMM
   BOE
   TDBMJOH
   GBTUz
   IUUQTKJNDBSSPMMDPNJOOPWBUJPOUIJOLCJHTUBSUTNBMMTDBMFGBTU
9.  5IJOL
   CJH
   JEFOUJGZ
   UIF
   MPOH
   UFSN
   USBOTGPSNBUJWF
   USFOET
   JODMVEJOH
   TJHOJpDBOU
   JOEVTUSZ
   DIBOHF
   CVTJOFTT
   NPEFM
   EJTSVQUJPO
   
    ྫ͑͹ɺʮσΟʔϓϥʔχϯάΛ΍͍ͬͯ͘ʯͱܾΊΔ
10.  4UBSU
    TNBMM
    1JDL
    B
    OVNCFS
    PG
    TNBMM
    FYQFSJFOUJBM
    PSJFOUBUFE
    QSPKFDUT
    UP
    CFHJO
    5IJT
    XJMM
    HJWF
    ZPV
    CFUUFS
    EFQUI
    PG
    JOTJHIU
     ΍͍ͬͯͨ͘Ίʹখ͍͞ϓϩδΣΫτΛ͜ͳ͠ɺֶͿ
11.  4DBMF
    GBTU
    %FUFSNJOF
    XIJDI
    BSFBT
    OFFE
    UP
    CF
    UBDLMFE
    pSTU
    JO
    UFSNT
    PG
    NPWJOH
    GPSXBSE
    %FWFMPQ
    UIF
    BCJMJUZ
    UP
    UBLF
    ZPVS
    bQSPUPUZQJOH`
    PG
    TLJMMT
    FOIBODFNFOU
    GSPN
    UIF
    TNBMM
    TDBMF
    QSPKFDUT
    JOUP
    GVMM
    qFEHFE
    PQFSBUJPOT
     ༗๬ͳϓϩδΣΫτΛબͼɺຊ֨తʹՔಇͤ͞Δ
12.  5IJOL
    CJH
    
    
    ྫ͑͹ ʮਂ૚ֶशΛ΍͍ͬͯ͘ʯͱܾΊΔ
     4UBSU
    TNBMM
    
    খ͍͞ϓϩδΣΫτ ࣮ݧ Λ͜ͳ͠ɺֶͿ
     4DBMF
    GBTU
    
    
    ༗๬ͳϓϩδΣΫτΛຊ֨తʹՔಇͤ͞Δ
13. ਂ૚ֶशͱ4UBSU
    TNBMM  4UBSU
    TNBMM
    খ͍͞ϓϩδΣΫτΛ͜ͳ͠ɺֶͿ
     ਂ૚ֶशͱ4UBSU
    TNBMMͷ૬ੑ͕͍͍ͱࢥΘͤΔ఺
     ৽ٕज़Ͱ͋ΓɺԿ͕ͲΕ͘Β͍Ͱ͖Δͷ͔प஌͞Ε͍ͯͳ͍
 ಺෦తࢼߦࡨޡ͕ඞཁ
     લྫ΋ͳ͍ͷͰɺ੒ޭ ྫ
    ϢʔβʔͷՁ஋ʹܨ͕Δ ͢Δͷ͔෼͔Βͳ͍
 ֎෦త
    ʏ
     ٕज़ελοΫͱͯ͠ݟͯ΋ૣख़Ͱ͋Δ
 ӡ༻ͷٕज़తशख़͕ඞཁ
14. ਂ૚ֶशͱ4UBSU
    TNBMM  ҰํͰɺ4UBSU
    TNBMM͕΍Γʹͦ͘͏ͳҰ໘΋͋Δ
     େྔͷσʔλͱܭࢉث͕ඞཁ
     ӡ༻ίετ͕ߴ͍
     ࠾༻େมͦ͏ 
    IUUQTBJHPPHMFSFTFBSDIQVCTQVC
15. ਂ૚ֶशͱ4UBSU
    TNBMM  ҰํͰɺ4UBSU
    TNBMM͕΍Γʹͦ͘͏ͳҰ໘΋͋Δ
     େྔͷσʔλͱܭࢉث͕ඞཁ
     ӡ༻ίετ͕ߴ͍
     ࠾༻େมͦ͏ 
    IUUQTBJHPPHMFSFTFBSDIQVCTQVC .-0QTͰ ͕ ղܾͰ͖ͦ͏ͳ໰୊
16. ͱ͜ΖͰ.-0QTͱ͸  ڪΒ͘%FW0QT΋ಉ༷͕ͩ ·ͩఆٛ͸ෆ໌ྎ
     ֶशΞϧΰϦζϜҎ֎ʁ
     %FW0QTͷ.-൛ʁ
     ػցֶश͕ɺιϑτ΢ΣΞ։ൃࣄۀʹ͓͍ͯՁ஋ΛੜΈग़͢͜ͱͷͰ͖Δ ٕज़ελοΫͰ͋Γଓ͚ΔͨΊʹඞཁͳٕज़
     ʰӡ༻ίετͷ࡟ݮʱ͚͕ͩ໨తͰ͸ͳ͍
     ྫ
    ਂ૚ֶशΛεϞʔϧελʔτͤ͞Δҝͷ.-0QT
17. ͜͜·Ͱ·ͱΊ  ਂ૚ֶशΛεϞʔϧελʔτ͍ͤͨ͞
     ͦͷͨΊʹ.-0QTͷϓϥΫςΟεΛ׆͔ͤͦ͏
18. εϞʔϧελʔτͷͨΊͷ.-0QT ΫοΫύουͷ৔߹
19. ܭࢉث؀ڥ  ೥݄ͷ࿩
     ݚڀ։ൃ෦һਓ
    
    དྷि͔ΒΠϯλʔϯΛਓड͚ೖΕ
     "84ຊ൪ΞΧ΢ϯτʹ໺ྑͷ(16Πϯελϯε HYMBSHF ͕୆
     ৽ن࡞੒ͷ౓ʹίϛϡχέʔγϣϯ͕ൃੜ
     
    ݚڀ։ൃ༻ΞΧ΢ϯτΛൃߦ͠ɺӡ༻ͷੵۃతͳ಺੡Խ΁
20. ܭࢉث؀ڥ  ݚڀ։ൃ༻ΞΧ΢ϯτͷΠϯϑϥΛίʔυ؅ཧ
     ຊ൪ΞΧ΢ϯτͷϓϥΫςΟε %FW0QT ʹ฿͏
     $IBU
    #PUΛ௨ͯ͠(16ΠϯελϯεΛ্ཱͪ͛Δ࢓૊ΈΛ࣮૷
     Πϯελϯεͷ࡞੒ɺٳ຾ΠϯελϯεͷࣗಈఀࢭΛ੔උ
     ࣮࣭ (16Πϯελϯεݐͯ์୊Λ࣮ݱ
     ͍ͭͰ΋࣮ݧ
    
    εϞʔϧελʔτ
21. ܭࢉث؀ڥ  ݚڀ։ൃ༻ΞΧ΢ϯτͷΠϯϑϥΛίʔυ؅ཧ
     ຊ൪ΞΧ΢ϯτͷϓϥΫςΟε %FW0QT ʹ฿͏
     $IBU
    #PUΛ௨ͯ͠(16ΠϯελϯεΛ্ཱͪ͛Δ࢓૊ΈΛ࣮૷
     Πϯελϯεͷ࡞੒ɺٳ຾ΠϯελϯεͷࣗಈఀࢭΛ੔උ
     ࣮࣭ (16Πϯελϯεݐͯ์୊Λ࣮ݱ
     ͍ͭͰ΋࣮ݧ
    
    εϞʔϧελʔτ .-0QT
22. ػցֶशج൫ͱ4UBSU
    TNBMM  ػցֶशج൫΋·ͨ৽͍͠ྖҬ
    
    4UBSU
    TNBMM͕ඞཁ
     ඞཁͳͷ͸ج൫ٕज़ͷεϞʔϧͳࢼߦࡨޡ
     ྫ͑͹ج൫୲౰Λ3%ʹ഑ஔͯ͠ΈΔ
     LVCFqPXͳͲͷϓϥοτϑΥʔϜ΋૊৫΍γνϡΤʔγϣϯ ͱͷ૬ੑ͕͋Δ
     ՄೳͰ͋Ε͹ ੵۃతʹࢼ͢ɺ࢖ͬͯΈΔͱΑͦ͞͏
23. ༨ஊ
    ʙݕࡧγεςϜʹֶͿʙ  ʮσʔλͷྲྀΕ͕͋ΓɺγεςϜ͕σʔλͱڞʹ੒௕͢ΔΑ͏ͳγ εςϜʯͱ͍͑͹ʁ
     ݕࡧγεςϜͷӡ༻ϓϥΫςΟε͔Β
 ֶͿ͜ͱ͸ଟͦ͏
     ΠϯσοΫεͷߏஙɺࣙॻσʔλͷ؅ཧ౳ IUUQTXXXBNB[PODPKQ#VJMEJOH*OUFMMJHFOU4ZTUFNT-FBSOJOH&OHJOFFSJOHFCPPLEQ##82)3
24. ·ͱΊ  ਂ૚ֶश͸εϞʔϧελʔτ͍ͤͨ͞
     ৽͍ٕ͠ज़ͷՄೳੑ ͱ੍໿ Λ࡞Γͳ͕ΒֶͿ
 
    εϞʔϧελʔτ
     .-0QTͷద੾ͳར༻͸εϞʔϧελʔτΛॿ͚Δ