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2017/08/26 Core ML Ͱ iOSΞϓϦ͸ Ͳ͏มΘΔͷ͔ ୈೋճ ߹ಉษڧձ in ෱Ԭ

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About Me

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• ాத ޹໌ (Takaaki Tanaka) • Ϋϥεϝιουגࣜձࣾ • @kongmingtrap • Swift / Objective-C / Scala / JavaScript … • GyazSquare / GitHub

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Introduction

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WWDC17

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Swift 4 ARKit Core ML HomeKit MusicKit Files
 Vision SiriKit Xcode

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Swift 4 ARKit Core ML HomeKit MusicKit Files
 Vision SiriKit Xcode

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Core ML IUUQTEFWFMPQFSBQQMFDPNNBDIJOFMFBSOJOH

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Core ML Core ML͸ɺSiriɺCameraɺQuickTypeͳͲɺApple ੡඼શମͰ࢖༻͞Ε͍ͯΔ৽͍͠جૅతͳϚγϯֶ शϑϨʔϜϫʔΫΛ׆༻͍ͯͩ͘͠͞ɻ Core ML ͸ɺػցֶशϞσϧΛ؆୯ʹ౷߹ͯ͠ڻ͘΄Ͳߴ଎ ͳύϑΥʔϚϯεΛ࣮ݱ͠ɺ਺ߦͷίʔυΛ࢖༻͠ ͯΠϯςϦδΣϯτͳ৽ػೳΛඋ͑ͨΞϓϦΛߏ ஙͰ͖·͢ɻ

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Core ML ͷొ৔ʹΑͬͯ • ઐ໳஌ࣝΛඞཁͱͨ͠ɺը૾ೖྗˠʮֶश Ϟσϧʯˠʮ݁Ռʯˠʮ݁Ռग़ྗʯΛ஥հ ͢ΔͨΊɺiOSΞϓϦ୲౰ऀʹͱͬͯɺʮֶ शϞσϧʯΛཧղͤͣͱ΋ػցֶशͷԸܙ ΛಘΒΕΔΑ͏ʹͳͬͨɻ

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Agenda • Core MLͱपลٕज़ • Core MLΛࢼ͢ • ࣗ࡞ͷֶशϞσϧΛΠϯϙʔτͯ͠ΈΔ

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Caution!! • ػցֶशɾσΟʔϓϥʔχϯάʹ͍ͭͯ͸ ৄղ͠·ͤΜ • Ϟσϧͷੜ੒ϩδοΫʹؔͯ͠ͷઆ໌͸͠ ·ͤΜ

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Core MLͱपลٕज़

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Core ML

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Core ML

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Vision

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Vision IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOWJTJPO

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Face Detection and Recognition

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Face Detection and Recognition

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Face Detection and Recognition

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Face Detection and Recognition

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Face Detection and Recognition

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Machine Learning Image Analysis

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Barcode Detection

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Barcode Detection

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Image Alignment Analysis

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Text Detection

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Text Detection

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Horizon Detection

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Object Detection and Tracking

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Object Detection and Tracking

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Natural language processing

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Core MLΛࢼ͢

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ͳΔ΂͘ҙࣝͤͣʹͰ͖Δ͜ ͱΛ΍Γ͍ͨ

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IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPODPSFNM JOUFHSBUJOH@B@DPSF@NM@NPEFM@JOUP@ZPVS@BQQ

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Core ML

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Import

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VNCoreMLModel

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VNCoreMLRequest guard let coreMLModel = try? VNCoreMLModel(for: Inceptionv3().model) else { fatalError("faild create VMCoreMLModel") } guard let ciImage = CIImage(image: image) else { fatalError("faild convert CIImage") } let request = VNCoreMLRequest(model: coreMLModel) { request, error in guard let results = request.results as? [VNClassificationObservation] else { fatalError("Error faild results") } if let classification = results.first { self.identifierLabel.text = classification.identifier self.confidenceLabel.text = "\(classification.confidence)" } else { print("error") } } let handler = VNImageRequestHandler(ciImage: ciImage, options: [:]) guard (try? handler.perform([request])) != nil else { fatalError("faild handler.perform”) }

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VNCoreMLRequest guard let coreMLModel = try? VNCoreMLModel(for: Inceptionv3().model) else { fatalError("faild create VMCoreMLModel") } guard let ciImage = CIImage(image: image) else { fatalError("faild convert CIImage") } let request = VNCoreMLRequest(model: coreMLModel) { request, error in guard let results = request.results as? [VNClassificationObservation] else { fatalError("Error faild results") } if let classification = results.first { self.identifierLabel.text = classification.identifier self.confidenceLabel.text = "\(classification.confidence)" } else { print("error") } } let handler = VNImageRequestHandler(ciImage: ciImage, options: [:]) guard (try? handler.perform([request])) != nil else { fatalError("faild handler.perform”) } $PSF.-.PEFMΛࢦఆ

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VNCoreMLRequest guard let coreMLModel = try? VNCoreMLModel(for: Inceptionv3().model) else { fatalError("faild create VMCoreMLModel") } guard let ciImage = CIImage(image: image) else { fatalError("faild convert CIImage") } let request = VNCoreMLRequest(model: coreMLModel) { request, error in guard let results = request.results as? [VNClassificationObservation] else { fatalError("Error faild results") } if let classification = results.first { self.identifierLabel.text = classification.identifier self.confidenceLabel.text = "\(classification.confidence)" } else { print("error") } } let handler = VNImageRequestHandler(ciImage: ciImage, options: [:]) guard (try? handler.perform([request])) != nil else { fatalError("faild handler.perform”) } $**NBHFΛऔಘ

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VNCoreMLRequest guard let coreMLModel = try? VNCoreMLModel(for: Inceptionv3().model) else { fatalError("faild create VMCoreMLModel") } guard let ciImage = CIImage(image: image) else { fatalError("faild convert CIImage") } let request = VNCoreMLRequest(model: coreMLModel) { request, error in guard let results = request.results as? [VNClassificationObservation] else { fatalError("Error faild results") } if let classification = results.first { self.identifierLabel.text = classification.identifier self.confidenceLabel.text = "\(classification.confidence)" } else { print("error") } } let handler = VNImageRequestHandler(ciImage: ciImage, options: [:]) guard (try? handler.perform([request])) != nil else { fatalError("faild handler.perform”) } 7/$PSF.-3FRVFTUΛ࡞੒

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VNCoreMLRequest guard let coreMLModel = try? VNCoreMLModel(for: Inceptionv3().model) else { fatalError("faild create VMCoreMLModel") } guard let ciImage = CIImage(image: image) else { fatalError("faild convert CIImage") } let request = VNCoreMLRequest(model: coreMLModel) { request, error in guard let results = request.results as? [VNClassificationObservation] else { fatalError("Error faild results") } if let classification = results.first { self.identifierLabel.text = classification.identifier self.confidenceLabel.text = "\(classification.confidence)" } else { print("error") } } let handler = VNImageRequestHandler(ciImage: ciImage, options: [:]) guard (try? handler.perform([request])) != nil else { fatalError("faild handler.perform”) } ݁Ռ͕ϋϯυϥʔͰฦͬͯ͘ΔͨΊ ॲཧ͍ͨ͠಺༰Λهड़

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VNCoreMLRequest guard let coreMLModel = try? VNCoreMLModel(for: Inceptionv3().model) else { fatalError("faild create VMCoreMLModel") } guard let ciImage = CIImage(image: image) else { fatalError("faild convert CIImage") } let request = VNCoreMLRequest(model: coreMLModel) { request, error in guard let results = request.results as? [VNClassificationObservation] else { fatalError("Error faild results") } if let classification = results.first { self.identifierLabel.text = classification.identifier self.confidenceLabel.text = "\(classification.confidence)" } else { print("error") } } let handler = VNImageRequestHandler(ciImage: ciImage, options: [:]) guard (try? handler.perform([request])) != nil else { fatalError("faild handler.perform”) } ը૾ղੳϋϯυϥʔΛ࡞੒͠ QFSGPSN͢Δ

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Demo

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ࣗ࡞ͷֶशϞσϧΛ Πϯϙʔτͯ͠ΈΔ

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motivation

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IUUQTXXXTMJEFTIBSFOFUDIPNBEP YBNBSJONTBJDVTUPNWJTJPOTFSWJDF

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Custom Vision Service͠Ύ͍͝…

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Core ML modelͷ࡞੒

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mlmodel Core ML Λར༻͢Δʹ͋ͨͬͯɺ۩ମతʹ͸ɺ Keras ΍ Caffe ͷΑ͏ͳػցֶशϑϨʔϜ ϫʔΫ͕ग़ྗͨ͠Ϟσϧ͔Β .mlmodel ͱ͍͏ ϑΝΠϧΛ࡞੒͠ɺ͜ΕΛ Xcode ʹΠϯϙʔ τ͠·͢ɻ ҎԼͰ͸ɺ.mlmodel ϑΝΠϧͷ࡞ ੒ํ๏Λݟ͍͖ͯ·͢ɻ

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Converting Trained Models to Core ML IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPODPSFNM DPOWFSUJOH@USBJOFE@NPEFMT@UP@DPSF@NM

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coremltools 0.5.1 IUUQTQZQJQZUIPOPSHQZQJDPSFNMUPPMT Keras ΍ Caffe ͷΑ͏ͳػցֶशϑϨʔϜ ϫʔΫ͕ग़ྗͨ͠Ϟσϧ͔Β .mlmodel ʹม׵ Ͱ͖ΔϓϩάϥϜΛఏڙɻʢΦʔϓϯιʔεʣ

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coremltools 0.5.1 IUUQTQZQJQZUIPOPSHQZQJDPSFNMUPPMT

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Keras IUUQTLFSBTJPKB

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KerasͰֶशϞσϧΛੜ੒ • ੒ޭը૾ɺࣦഊը૾Λ४උ • ੒ޭɾࣦഊը૾ͷਖ਼౴σʔλΛ४උ • EC2ʹػցֶश༻ͷAMI͕ఏڙ͞Ε͍ͯΔ ͷͰΠϯελϯεΛ֬อ

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KerasͰֶशϞσϧΛੜ੒ • ܇࿅ϓϩάϥϜͷ࡞੒ • ܇࿅Λ࣮ߦ • ܇࿅ͨ݁͠ՌͷֶशϞσϧΛcoremltoolsΛ ར༻ͯ͠mlmodelʹม׵͢Δ

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܇࿅ϓϩάϥϜ • CIFAR10Λࢀߟʹ܇࿅ϓϩάϥϜΛ࡞੒͢ Δ IUUQTHJUIVCDPNGDIPMMFULFSBTCMPCNBTUFS FYBNQMFTDJGBS@DOOQZ

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QZUIPOVEO@NBJOQZ ܇࿅Λ࣮ߦ

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coremltoolsͰίϯόʔτ • coremeltoolsΛΠϯετʔϧ͢Δ QJQJOTUBMMDPSFNMUPPMT

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coremltoolsͰίϯόʔτ • KerasͷֶशϞσϧΛCore MLͰར༻Ͱ͖Δ ܗࣜʹมߋ͢Δ • ม׵༻ͷϓϩάϥϜΛ࡞੒͢Δ

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QZUIPODPOWFSUQZ ม׵Λ࣮ߦ

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coremltools

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Recap • Vision frameworkͷڧྗͳαϙʔτͰը૾ղ ੳɺจࣈݕग़͸ָʹ࣮૷Մೳ • ֶशϞσϧͷ࡞੒ʹ͸ઐ໳஌͕ࣝඞཁ • ωοτϫʔΫΛհͣ͞ʹػցֶशϞσϧΛ ར༻͢Δ͜ͱ͕Ͱ͖Δ • ओʹը૾ݕग़Ͱར༻͢Δ৔߹͕ଟͦ͏

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ँࣙ • KerasͰ͸͡ΊΔDeepLearning • http://dev.classmethod.jp/machine-learning/introduction-keras- deeplearning/ • Keras + iOS11 CoreML + Vision Framework ʹΑΔɺ΋΋Ϋϩإࣝ ผΞϓϦͷ։ൃ • http://qiita.com/kenmaz/items/d416b191f79f60e07752 • 20170818_Xamarinجຊ + MSͷAIαʔϏεʮCustom Vision Serviceʯʹ͍ͭͯ • https://www.slideshare.net/chomado/20170818xamarin-msaicustom- vision-service

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એ఻

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એ఻

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Thank you!