PyTorchとCaffe2とONNXと深層学習モデルのデプロイについて

by Yuichiro Someya

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1Z5PSDIͱ$B⒎Fͱ0//9ͱ  ਂ૚ֶशϞσϧͷσϓϩΠʹ͍ͭͯ ΫοΫύουגࣜձࣾݚڀ։ൃ෦છ୩༔Ұ࿠ 

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ࣗݾ঺հ છ୩༔Ұ࿠<:VJDIJSP4PNFZB> ΫοΫύουגࣜձࣾݚڀ։ൃ෦  ϦαʔνΤϯδχΞ೥݄d "84ͱ͔ػցֶशͱ͔ .-NJOVUFT͸ճ໨ UXJUUFSDPN!BZFNPT@Z HJUIVCDPNBZFNPT IUUQTXXXBZFNPTNF

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Ϩγϐ਺ɿສ඼Ҏ্ ࠃ಺ͷ݄ؒར༻ऀ਺ɿ໿ສਓ

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ରԠݴޠɿݴޠϲࠃ ւ֎ͷ݄ؒར༻ऀ਺ɿ໿ສਓ

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"HFOEB ࿩͢͜ͱ χϡʔϥϧωοτϫʔΫϞσϧͷσϓϩΠͷݱঢ়ͱ՝୊ʹ͍ͭͯ 1Z5PSDIͱ$B⒎Fͱ0//9 χϡʔϥϧωοτϫʔΫͷதؒදݱͱ͸ ࿩͞ͳ͍͜ͱ 1Z5PSDIɺ$B⒎Fɺ0//9ͷ࢖͍ํ σϞ

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ϞσϧσϓϩΠͷݱঢ়ͱ՝୊

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എܠ ػցֶशΛར༻͢Δ જࡏ ਓ਺͕૿͍͑ͯΔ ྫΫοΫύουגࣜձࣾݚڀ։ൃ෦ ೥݄ͷൃ଍౰࣌͸໊ͷϝϯόʔ ೥݄ݱࡏ͸ࠃ಺ʹ໊ւ֎ʹ໊ ϞσϧͷσϓϩΠ࡞ۀ͕ϘτϧωοΫʹͳ͖ͬͯͨ

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5SBJO 5SBJO*OGFSͱ͍͏ॱ൪ ͋Δ͍͸ͦΕΛ܁Γฦ͢ ྫϓϩτλΠϓɺ1P$ ͳΔ΂ָ͘ʹ଎͘΍Γ͍ͨ *OGFS σʔλऩू .PEFM ܇࿅ લॲཧ "1*࣮૷ ෼ੳ %PDLFSԽ όον࣮૷ ςετʗ؂ࢹ

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ϞσϧͷσϓϩΠख๏ྫ ΞϓϦέʔγϣϯίʔυʹ૊ΈࠐΉ 1ZUIPOQBDLBHFʹ͢Δ "1*Խ͢Δ

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ΞϓϦέʔγϣϯίʔυʹ૊ΈࠐΉ ͍͍ͱ͜Ζ ௨৴Φʔόʔϔου౳͕ආ͚ΒΕΔ Α͘ͳ͍ͱ͜Ζ ΞϓϦέʔγϣϯίʔυΛ͍͡Δඞཁ͕͋Δ 1ZUIPO؀ڥʹݶΒΕΔPSม׵͢Δඞཁ͕͋Δ  Ұํ1Z$BMMͱ͍͏ͷ΋͋Δ άϧʔίʔυ͕ॏෳ͢Δ  ͔͠΋݁ߏάϧʔ͕෼ް͔ͬͨΓ͢Δ IUUQTHJUIVCDPNNSLOQZDBMMSC

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1ZUIPOQBDLBHFʹ͢Δ άϧʔ෦෼ΛؚΊͯ1ZUIPOQBDLBHFԽͯ͠ଞॴͰར༻Ͱ͖Δ Α͏ʹ͢Δ ެ։Ͱ͖ͳ΋ͷʹ͍ͭͯ͸1Z1*$MPVE ͳͲΛࣾ಺ʹ  ཱͯΔͱ͍͏ख͕͋Δ IUUQTHJUIVCDPNTUFWFBSDQZQJDMPVE

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1ZUIPOQBDLBHFʹ͢Δ ͍͍ͱ͜Ζ άϧʔίʔυͷॏෳ͕ආ͚ΒΕΔ Α͘ͳ͍ͱ͜Ζ ґવ1ZUIPO؀ڥʹݶΒΕΔ ख͕͔͔ؒΔ //ϑϨʔϜϫʔΫͷ஌ࣝɺ1ZUIPOͷQBDLBHJOHʹؔ͢Δ஌͕ࣝඞཁʹ ͳΔ ୭͕΍Δͷ͔໰୊ IUUQTHJUIVCDPNTUFWFBSDQZQJDMPVE

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"1*Խ͢Δ Ϟσϧ୯ମΛ"1*Խ ϞσϧΛಡΈࠐΜͰɺ֎෦ϦΫΤετʹԠͯ͡ϞσϧΛ  ݺͼग़͢ബ͘খ͞ͳ"1*Λ࣮૷͢Δ NJDSPTFSWJDF पลͷϩδοΫ FHʰϞσϧ͕εύϜ൑ఆͨ͠Β%#ʹϑϥ άΛཱͯΔʱ ͸֎෦Ͱ࣮૷

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"1*Խ͢Δ ͍͍ͱ͜Ζ Ϟσϧ࣮૷ͱΞϓϦέʔγϣϯ࣮૷Λ্ख͘੾Γ཭ͤΔ  ։ൃऀ΋্ख͘෼͚ΒΕΔ ΞϓϦέʔγϣϯ͸1ZUIPOͰͳͯ͘΋Α͍ NJDSPTFSWJDF Α͘ͳ͍ͱ͜Ζ ख͕͔͔ؒΔ

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"1*αʔόʔ ʰ1ZUIPOQBDLBHFԽɺ"1*Խ͍ͣΕ͔ͷํ๏ʹΑΓɺϞσϧ ͷ࣋ͪग़͕͠ग़དྷΔʱ ͍ͣΕ΋ख͕͔͔ؒΓɺ1P$౳ͷ৔߹ಛʹࠔΔ  ੾Γग़ͯ͠ڞ௨ج൫Խ͢Δʁ ͪΐͬͱͨ͠ϝλσʔλKTPO NPEFMQC .PEFMͷμϯϓϑΝΠϧ NPEFMQC ͳʹ͔ 1ZUIPOQBDLBHF NPEFMQC

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"1*αʔόʔ ͜Ε͸ݫ͍͠ NPEFMQC ͳʹ͔ 1ZUIPOQBDLBHF NPEFMQC

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ͪͳΈʹ (PPHMF$MPVE.-&OHJOFͱ͍͏෺͕͋Δ  IUUQTDMPVEHPPHMFDPNNMFOHJOF 5FOTPSqPXɺ($1റΓ͸͋Δ͕Α͘ಈ͘ ެࣜʮόον༻ɻϦΞϧλΠϜਪ࿦͸#FUBͰ4-"ͳ͍Αʯ "1*αʔόʔ ͪΐͬͱͨ͠ϝλσʔλ NPEFMQC .PEFMͷμϯϓϑΝΠϧ NPEFMQC

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͜͜·Ͱ·ͱΊ Ϟσϧ։ൃऀ͕૿͖͑ͯͨ݁ՌɺϞσϧͷσϓϩΠͱ͍͏  ϘτϧωοΫ͕ݟ͖͑ͯͨ σϓϩΠ࡞ۀΛڞ௨ج൫ͱ͍͏ܗͰ࢓૊ΈԽ͍ͨ͠ͱ͜Ζ ޓ͍ʹޓ׵ੑͷ ΄ͱΜͲ ͳ͍//ϑϨʔϜϫʔΫ͕  ୔ࢁ͋Δ

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1Z5PSDIͱ$B⒎Fͱ0//9

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//ϑϨʔϜϫʔΫͷಛੑͱબ୒ ͳͥ//ϑϨʔϜϫʔΫ͸ෳ਺͋Δʁ

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//ϑϨʔϜϫʔΫͷಛੑͱબ୒ ʰ࣮ݧ౳ͷඇϓϩμΫγϣϯ؀ڥʹ͓͍ͯ͸ਪ࿦ͷ࣮ߦ଎౓  ΑΓॊೈੑ͕༏ઌ͞ΕΔʱ ʰσϓϩΠઌͰ͸ɺ࣮ߦ؀ڥ αʔόʔʗΤοδ ʹద͠ɺ  ਪ࿦ʹ࠷దԽ͞ΕͨϑϨʔϜϫʔΫ͕๬·͍͠ʱ ॊೈੑͱ͸ʁ Α͘࿦఺ʹͳΔͷ͸ɺ੩తμΠφϛοΫ

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1Z5PSDIͱ$B⒎F 1Z5PSDI ໋ྩతͰ μΠφϛοΫɺ࣮ݧ޲͖ $B⒎F એݴతͰ ੩తͳϑϨʔϜϫʔΫ ΫϩεϓϥοτϑΥʔϜͰ࣮ߦՄೳ FHJ04 "OESPJE ࣮ݧͱਪ࿦࢖͍෼͚ΔϞσϧͷՄൖੑ͕ॏཁࢹ͞Εͯ͘Δ

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0//9 χϡʔϥϧωοτϫʔΫͷΦʔϓϯͳ*3 தؒදݱ ఆٛ ࣮ମ͸1SPDPM#V⒎FS ྫ͑͹ 1Z5PSDI ࣮ݧ 0//9$B⒎F ϓϩμΫγϣϯ IUUQTSFTFBSDIGCDPNGBDFCPPLBOENJDSPTPGUJOUSPEVDFOFXPQFOFDPTZTUFNGPSJOUFSDIBOHFBCMFBJGSBNFXPSLT IUUQTEFWFMPQFSTHPPHMFDPNQSPUPDPMCV⒎FST 0//9'SPOUFOE 0//9#BDLFOE

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ࣅͨΑ͏ͳऔΓ૊Έ IUUQUWNMBOHPSH IUUQTHJUIVCDPNENMDUWN IUUQTHJUIVCDPNENMDOOWN IUUQTXXXLISPOPTPSHOOFG 57.4UBDL 57. //7.

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ͦͷଞͷରԠϑϨʔϜϫʔΫ μΠφϛοΫ $IBJOFS 1Z5PSDI ͸FYQPSUରԠॏࢹ ੩త 5' $B⒎F ɺΤοδ༻ $PSF.- ౳͸JNQPSUରԠॏࢹ IUUQTHJUIVCDPNPOOYUVUPSJBMT

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ͦͷଞͷରԠϑϨʔϜϫʔΫ ྫ͑͹$B⒎Fͷ࣮ߦ؀ڥΛ༻ҙ͓͚ͯ͠͹ɺ$B⒎F 1ZUPSDI $IBJOFSͷϞσϧ͕࣮ߦͰ͖Δɻ ڞ௨࣮ߦ؀ڥ΋ເͰ͸ͳ͍ 5FOTPSqPXؤுΕ IUUQTHJUIVCDPNPOOYUVUPSJBMT

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0//9CBDLFOE "1*αʔόʔ ເ NPEFMQC ͳʹ͔ 1ZUIPOQBDLBHF 0//9GSPOUFOE NPEFMPOOY ͪΐͬͱͨ͠ϝλσʔλKTPO

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·ͱΊ ϞσϧͷσϓϩΠʹ·ͭΘΔ՝୊ͷͭͱͯ͠ɺͦΕͧΕʹ  ಛੑ͕ҟͳΔʰෳ਺ͷ//ϑϨʔϜϫʔΫ͕ଘࡏ͢ΔࣄʱΛڍ ͛ͨ 0//9Λར༻ͯ͠ϞσϧΛσϓϩΠ͢Δҝͷڞ௨ج൫Λߏங  ͢ΔΞΠσΞΛ঺հͨ͠

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એ఻ ͦΜͳج൫ΛҰॹʹ࡞Γ·ͤΜ͔ IUUQTDPPLQBEKPCT

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ࢀߟจݙ IUUQTSFTFBSDIGCDPNQVCMJDBUJPOTBQQMJFENBDIJOF MFBSOJOHBUGBDFCPPLBEBUBDFOUFSJOGSBTUSVDUVSF QFSTQFDUJWF IUUQTSFTFBSDIGCDPNGBDFCPPLBOENJDSPTPGU JOUSPEVDFOFXPQFOFDPTZTUFNGPSJOUFSDIBOHFBCMFBJ GSBNFXPSLT IUUQTHJUIVCDPNPOOYUVUPSJBMT