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iOSͱσΟʔϓϥʔχϯά ϑϦʔϥϯεiOSΤϯδχΞ అ मҰ @shu223 2016.8.31 iOSDCϦδΣΫτίϯ

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అ मҰ • iOSઐۀϑϦʔϥϯε • ϒϩάʰOver&Out ͦͷޙʱ • ஶॻ - ʰiOS×BLEɹCore Bluetoothϓϩάϥϛϯάʱ - ʰiOSΞϓϦ։ൃ ୡਓͷϨγϐ100ʱ

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͓ख఻͍ͨ͠ϓϩμΫτʢBLEؔ࿈ʣ Music for the Deaf BONX

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σΟʔϓϥʔχϯάͱ͸

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ɾɾɾͷલʹɺ χϡʔϥϧωοτϫʔΫͱ͸

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• ೴ਆܦͷߏ଄Λ໛ͨ͠Ϟσϧ Neural Network: ਆܦճ࿏໢ ਆܦࡉ๔ ύʔηϓτϩϯ

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χϡʔϥϧωοτϫʔΫ • ύʔηϓτϩϯΛෳࡶʹ૊Έ߹ΘͤͨωοτϫʔΫ

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σΟʔϓϥʔχϯά • χϡʔϥϧωοτϫʔΫͷߏ଄Λਂ͘ʢଟ૚ʹʣͨ͠΋ͷ

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ΞδΣϯμ • σΟʔϓϥʔχϯάͷར༻ྫ • σΟʔϓϥʔχϯά on iOSʁ • ͱΓ͋͑ͣࢼͯ͠ΈΔ • χϡʔϥϧωοτϫʔΫΛ࣮૷ͯ͠ΈΔ • iOSͰ࢖͑ΔσΟʔϓϥʔχϯάͷOSS

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σΟʔϓϥʔχϯάͷར༻ྫ

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ը૾ͷࣝผ Qiita౳Ͱ্͕͍ͬͯΔࣄྫɿ • ೣͷ඼छࣝผ • ΞΠυϧͷإΛࣝผ • ΞχϝͷΩϟϥΛࣝผ

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࿡ͭࢠΛࣝผ

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ελΠϧม׵ • ը෩ม׵ • DeepDream • ֆըΛࣗಈੜ੒ - Ϩϯϒϥϯτͷ"৽࡞"Λग़ྗɻֆ۩ͷོى΋3D࠶ݱ

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Prisma

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ͦͷଞը૾ؔ࿈ • നࠇը૾ͷࣗಈ࠼৭ • ը૾ͷࣗಈิ׬ • ࣗಈΩϟϓγϣϯ෇༩

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Auto Colorization

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ը૾Ҏ֎ • ήʔϜ߈ུɾɾɾAlphaGO • גՁͷਪఆ • ఱؾͷ༧ଌ • Ի੠ೝࣝ • จࣈೝࣝ • ʙͬΆ͍ηϦϑɾจষͷࣗಈੜ੒

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→ ͱʹ͔͘৭ʑͳʮͳΜ ͔͍͢͝ʯ͜ͱ͕Ͱ͖Δ

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→ iOSͰ΋σΟʔϓϥʔχ ϯάͰͳΜ͔΍Γ͍ͨʂ

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͜Ε·Ͱ • ଟ૚χϡʔϥϧωοτϫʔΫͷʮֶशʯʢʹਂ૚ֶशʣʹ ͸๲େͳܭࢉΛཁ͢Δ • iOSͱ͍͏ϞόΠϧσόΠεʹ͸ෆ޲͖

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2016೥ • GoogleͷػցֶशϥΠϒϥϦʮTensorFlowʯ ͕iOSΛαϙʔτ • ը෩ม׵ΞϓϦPrisma͕ΦϑϥΠϯରԠ

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iOS 10 χϡʔϥϧωοτϫʔΫͷػೳ܈͕௥Ճ͞Εͨ • BNNS - Accelerate Framework - iOSͷϓϩηοαʹ࠷దԽ͞Εͨߴ଎ԋࢉϑϨʔϜϫʔΫ • CNN - Metal Performance Shaders Framework - GPUͰͷߴ଎ॲཧΛߦ͏ϑϨʔϜϫʔΫ

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→ ֶशࡁΈͷχϡʔϥϧ ωοτϫʔΫͷܭࢉ͙Β ͍͸iOSଆͰ΍ͬͯ΋͍ ͍Μ͡Όͳ͍ʁ

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ͱΓ͋͑ͣiOS্ͰσΟʔ ϓϥʔχϯάΛࢼͯ͠ΈΔ

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Step1: TensorFlowͷαϯϓϧΛࢼ͢ • TensorFlowΛiOS޲͚ʹϏϧυ͢Δ • ࠷৽ϦϦʔεʢv0.10.0 RC0ʣͰ͸εΫϦϓτҰൃ

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ʢσϞʣ

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Step2: TensorFlowͷֶशࡁΈϞσϧ Λर͖ͬͯͯࢼ͢ • ֶशࡁΈϞσϧ xxx.pb ϑΝΠϧΛ୳͖ͯͯ͠TensorFlow ͷαϯϓϧʹ૊ΈࠐΉ • ಡΈࠐΉϑΝΠϧ໊΍ύϥϝʔλΛॻ͖׵͑Δ͚ͩ • ৄࡉ: TensorFlowͷֶशࡁΈϞσϧΛर͖ͬͯͯiOSͰར ༻͢Δ - Qiita

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र͖ͬͯͨϞσϧ1: ՖͷछྨΛࣝผ TVOqPXFST

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र͖ͬͯͨϞσϧ2: ಈ෺΍৐Γ෺Λࣝผ DPX ˞ϝϞϦ(#ͳ͍ͱ Ϋϥογϡ͠·͢

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iOSͰχϡʔϥϧωοτ ϫʔΫΛ࣮૷ͯ͠ΈΔ

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BNNS • Basic Neural Network Subroutines • collection of functions that you use to implement and run neural networks, using previously obtained training data. • iOS 10 Ͱ Accelerate Framework ʹ৽ن௥Ճ͞Εͨ • Accelerate: CPUͰߴ଎ܭࢉΛߦ͏ͨΊͷϑϨʔϜϫʔΫ

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CNNʢMPSCNNʣ • Convolutional neural network • iOS 10 Ͱ MetalPerformanceShaders Frameworkʹ ৽ن௥Ճ͞Εͨ • MetalPerformanceShaders: GPUͰߴ଎ܭࢉΛߦ͏ͨΊ ͷϑϨʔϜϫʔΫ

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ެࣜαϯϓϧ • MPSCNNHelloWorld - MPSCNNͰखॻ͖਺ࣈೝࣝ • MetalImageRecognition - MPSCNN+InceptionϞσϧͰը૾ೝࣝ w γϯϓϧͰཧղ͠΍͍͢ w 88%$Ͱղઆ͋Γ

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MPSCNNHelloWorldͷDeepCNNͷ࣮૷ ಛ௃ྔͷ৞ΈࠐΈΛߦ͏૚ MPSCNNConvolution ϨΠϠͷॖখΛߦ͍ɺ ѻ͍΍͘͢͢ΔͨΊͷ૚ MPSCNNPooling ಛ௃ྔ͔Βɺ ࠷ऴతͳ൑ఆΛߦ͏૚ MPSCNNFullyConnected

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ʢσϞʣ

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iOSͰ࢖͑ΔσΟʔϓϥʔχϯά/ χϡʔϥϧωοτϫʔΫͷOSS • iOS 9ҎԼͰ΋࢖͑ΔΦʔϓϯιʔεͷDL/NNϥΠϒϥϦ ͸ͨ͘͞Μ͋Δ • Metal or AcceleratedϑϨʔϜϫʔΫͰߴ଎Խͯ͋͠Δ΋ ͷ΋ଟ͍ • SwiftͰॻ͔Ε͍ͯΔ΋ͷ΋ଟ͍

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100StarҎ্ͷDL/NNͷOSS ʢϝϯς͞Εͳ͔ͬͨΓɺαϯϓϧ͕ͳ͔ͬͨΓɺػೳ͕଍Γͳ͔ͬͨΓʜʣ

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·ͱΊ • σΟʔϓϥʔχϯά͍͢͝ɺ͔͍͍ͬ͜ɺiOSͰ΋࢖͍͍ͨ • iOSαΠυͰσΟʔϓϥʔχϯάͷֶशࡁΈϞσϧΛར༻ͯ͠ χϡʔϥϧωοτϫʔΫͷܭࢉΛߦ͏έʔε͸૿͖͑ͯͦ͏ • ֶशࡁΈϞσϧΛर͖ͬͯͯͱΓ͋͑ͣࢼ͢ • iOS 10Ͱ͸MPSͷCNNΛ࢖ͬͯGPU Acceleratedͳχϡʔϥ ϧωοτϫʔΫ΋࣮૷Ͱ͖Δ • iOS 9ҎԼͰ΋࢖͑ΔΦʔϓϯιʔεϥΠϒϥϦ΋৭ʑͱ͋Δ

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ • Twitter: @shu223 • GitHub: shu223 • Email: shuichi0526@gmail.com