異常検知ライブラリを作った話

ライブラリの特徴：特異スペクトル変換による変化点検知

Transcript

1. ҟৗݕ஌ϥΠϒϥϦ
   Λ࡞ͬͨ࿩
   
   ۝भ %BUB4DJFOUJTU.FFU6Q
   

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2. ࣗݾ঺հ
   ௽ా തจ
   ʢ!UTVSVCFFʣ
   ΤϯδχΞྺɿ
   ೥ͪΐ͍
   େֶͷઐ߈͸Խֶ
   લ৬͸ফ๷࢜
   झຯ͸ےτϨ
   ʢಛʹϕϯνϓϨεʣ
   

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3. ࠓճͷ಺༰͸ɾɾ
   ೥൒લʹθϩ͔ΒϓϩάϥϛϯάΛ࢝Ίͨࢲ͕ɺ
   ϊϦͱؾ߹͍Ͱҟৗݕ஌ϥΠϒϥϦΛ࡞ͬͨ࿩
   ɾҟৗݕ஌ʹ͍ͭͯ
   ɾϥΠϒϥϦΛ࡞ͬͨഎܠ
   ɾ࣮૷ΞϧΰϦζϜ
   ɾϦΞϧλΠϜҟৗ؂ࢹͷσϞ
   ͳͲͳͲɾɾ
   

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4. ҟৗݕ஌ͱ͸ʁ
   

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5. େଟ਺ͷσʔλͱ͸ৼΔ෣͍͕
   ҟͳΔσʔλΛݕग़͢Δٕज़
   σʔλϚΠχϯά
   نଇੑ ҟৗ
   σʔλͷࢁ
   

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6. ҟৗݕ஌ͷԠ༻ྫ
   ίϯϐϡʔλ΢Πϧε΍%PT߈ܸͷૣظൃݟ
   ηΩϡϦςΟ෼໺
   ނো༧ஹݕ஌
   ػց෼໺
   ྲྀߦͷݕ஌ɾ৽τϐοΫͷൃݟɾ
   ϢʔβߦಈͷมԽݕ஌
   ϚʔέςΟϯά෼໺
   

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7. ҟৗσʔλྫ ʙͦͷ̍
   

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8. ҟৗσʔλྫ ʙͦͷ̍
   ҟৗʂ
   

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9. ҟৗʂ
   if value > 120:
   print('ERROR!')
   JGจͰݕ஌Ͱ͖ͦ͏ʂ
   ҟৗσʔλྫ ʙͦͷ̍
   

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10. ҟৗσʔλྫ ʙͦͷ̎
    

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11. Կ͔ҟৗ͕ى͖ͯΔ
    ҟৗʹ΋͍Ζ͍Ζ͋Δ
    ҟৗσʔλྫ ʙͦͷ̎
    

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12. ҟৗݕ஌ͷ෼ྨ
    ֎Ε஋ݕ஌ มԽ఺ݕ஌
    ҟৗݕ஌
    ٸܹͳৼΔ෣͍ͷมԽΛݕ஌
    ࣌ܥྻϞσϧ
    ଞͱ͸େ͖͘ҟͳΔ஋Λݕ஌
    ಠཱϞσϧ
    

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13. ҟৗݕ஌ͷ෼ྨ
    ֎Ε஋ݕ஌ มԽ఺ݕ஌
    ҟৗݕ஌
    ࠓճ͸ίονͷ࿩ʂ
    ٸܹͳৼΔ෣͍ͷมԽΛݕ஌
    ࣌ܥྻϞσϧ
    ଞͱ͸େ͖͘ҟͳΔ஋Λݕ஌
    ಠཱϞσϧ
    

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14. ҟৗݕ஌ϥΠϒϥϦ
    ʹ͍ͭͯ
    

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15. ͳͥ࡞͔ͬͨ
    ͍ͭͷ೔͔ɺٕज़Λ࢖͍͜ͳ͢ଆͰ͸ͳ͘
    ࡞ΔଆʹͳΓ͍ͨ
    ϚΠϯυతഎܠ
    σʔλαΠΤϯεతഎܠ
    Ϗδωεͷݱ৔ʹᷓΕΔ࣌ܥྻσʔλ
    ʢྫ͑͹ɺച্σʔλɾΞΫηεϩάͳͲʣ
    ͷมԽͷஹީΛ͍ͪૣ͘ݕ஌͍ͨ͠
    

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16. ࡞ͬͨ΋ͷ
    ಛ௃ʢڧΈʣ͸Կʁ
    #BOQFJʢ൪ฌʣ
    ɿ1ZUIPO੡ҟৗݕ஌ύοέʔδ
    "ಛҟεϖΫτϧม׵ʹΑΔ࣌ܥྻσʔλͷมԽ఺ݕ஌
    ಛఆͷ֬཰෼෍ΛԾఆ͍ͯ͠ͳ͍ͨΊɺ
    ᶃଟ༷ͳมԽʹؤڧʹରԠͰ͖ɺ
    ᶄύϥϝʔλνϡʔχϯά͕༰қͳ
    มԽ఺ݕ஌͕Մೳ
    

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17. ಛҟεϖΫτϧม׵
    ࣌ࠁ
    ཤྺߦྻ"
    ςετߦྻ#
    ओ෦෼ۭؒ ",''', ( ",''', (
    มԽ౓
    
    શମΠϝʔδ
    ʮೖ໳ػցֶशʹΑΔҟৗݕ஌
    ʕ3ʹΑΔ࣮ફΨΠυʯͷਤ
    Λࢀߟʹ࡞੒
    աڈଆͱݱࡏଆͷߦྻಉ࢜ͷ৯͍ҧ͍ͷେ͖͞ΛఆྔԽ
    

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18. มԽ౓ͷఆٛ
    ಛҟ஋෼ղʹΑΔಛ௃ύλʔϯͷநग़
    9 6 7
    
    ಛҟ஋্ҐͷࠨಛҟϕΫτϧΛ
    NຊऔΓग़͢
    աڈଆ
    ݱࡏଆ
    ( ͷ࠷େಛҟ஋)
    4
    ֊਺SΛ΋ͭNºOߦྻ9
    N
    O S S O
    S
    มԽ౓
    

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19. #BOQFJͷ࢖͍ํ
    ҟৗݕ஌
    ϋΠύʔύϥϝʔλʢXʣɿεϥΠυ૭ͷαΠζ
    ΠϯϓοτʢEBUBʣϦετܕ΍/VN1Z BSSBZͳͲͷσʔλ഑ྻ
    Ξ΢τϓοτʢSFTVMUTʣΠϯϓοτͱಉ͡αΠζͷ/VN1Z BSSBZ
    git clone https://github.com/tsurubee/banpei.git
    cd banpei
    pip install .
    Πϯετʔϧ
    import banpei
    model = banpei.SST(w=50)
    results = model.detect(data)
    ˞ͨͬͨ̏ߦʂ
    

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20. #BOQFJʹΑΔप೾਺ҟৗݕ஌
    

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21. #PLFIͱͷ࿈ܞʹΑΔ
    ϦΞϧλΠϜҟৗ؂ࢹ
    ΁ͷ௅ઓ
    

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22. #PLFIͱ͸ʁ
    IUUQTCPLFIQZEBUBPSHFOMBUFTU
    ɾ*OUFSBDUJWFWJTVBMJ[FUJPO
    ɾ/PWFMHSBQIJDT
    ɾ4USFBNJOH EZOBNJD MBSHFEBUB
    ɾ/POFFEUPXSJUF+BWBTDSJQU
    ର࿩ܕՄࢹԽ؀ڥΛఏڙ͢Δ1ZUIPOϥΠϒϥϦ
    IUUQTXXXTMJEFTIBSFOFUDPOUJOVVNJPIBTTMFGSFFEBUBTDJFODFBQQTXJUICPLFIXFCJOBS
    

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23. σ Ϟ
    

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24. • ʮಛҟεϖΫτϧม׵ʹΑΔप೾਺ҟৗݕ஌ʯ
    IUUQTZPVUVCFF'7/,"7U/1
    • ʮಛҟεϖΫτϧม׵ʹΑΔ܏͖ͷมԽ఺ݕ஌ʯ
    IUUQTZPVUVCF@XPVC-"I9L
    :PV5VCFʹσϞಈըΛެ։͍ͯ͠·͢ʂ
    

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25. (JU)VCʹެ։͍ͯ͠·͢ʂ
    IUUQTHJUIVCDPNUTVSVCFFCBOQFJ
    

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26. ϒϩάॻ͍͍ͯ·͢ʂ
    IUUQTHJUIVCDPNUTVSVCFFCBOQFJ
    

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27. ࠓޙͷల๬
    l ಛҟεϖΫτϧม׵ͷߴ଎ԽʹΑΔߋͳΔ
    ϦΞϧλΠϜੑͷ௥ٻ
    l ҟৗ௨஌ػೳͷ࣮૷ʹΑΔ࣮༻ੑͷ޲্
    ͋ͱɺ৽ͨͳΞϧΰϦζϜ΋࣮૷͍ͨ͠ɾɾ
    

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28. 1ZUIPOίϛϡχςΟ
    ʹ͍ͭͯ
    

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29. 1Z'VLVPLB΍ͬͯ·͢ʂ
    ݄ʹ-5ΠϕϯτΛ։࠵༧ఆͰ͢ʂ
    

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30. 1Z$PO ,ZVTIV΍Γ·͢ʂ
    ελοϑืूதʂ
    ڵຯ͕͋Δํ͸࠙਌ձͰ͓੠͔͚͍ͩ͘͞ʂ
    IUUQLZVTIVQZDPOKQ
    

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31. ͝ਗ਼ௌ͋Γ͕ͱ͏
    ͍͟͝·ͨ͠ʂ
    

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