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walid chergui
February 17, 2017
Programming
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La reconnaissance d’images par réseau de neurones
walid chergui
February 17, 2017
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Transcript
La reconnaissance d’images par réseau de neurones Walid Chergui #SnowCamp
2017
Sommaire Encodage Convolution Réseau de neurone simple Réseau de neurone
de convolution LeNet Frameworks & code ImagNet
Moi Développeur Scala et Java FP Machine learning Les architectures
distribuées DevOps
Les images - Matrice
Les images RGB
Convolution Source : Wikipedia
Convolution
Réseaux de neurones Convolutional Neural Networks (CNN) Recurrent Neural Networks
(RNN) Autoencoders
CNN - types
Réseau de neurones
CNN-LeNet
Convolution (1*32*32) -> (16*32*32)
Relu (rectified linear unit )
Pooling (16*32*32) -> (16*16*16)
Fully Connected
Frameworks Caffe Torch Theano / Lasagne TensorFlow / Keras Deeplearning4j
CIFAR-10
Deeplearning4J CODE CODE CODE !!!
Depper ….
AlexNet (2012)
VGG Net (2014)
GoogLeNet (2015)
Pre-trained neural network TrainedModelHelper helper = new TrainedModelHelper(TrainedModels.VGG16); ComputationGraph vgg16
= helper.loadModel(); DataNormalization scaler = new VGG16ImagePreProcessor(); scaler.transform(image); INDArray[] output = vgg16.output(false,image); System.out.println(TrainedModels.VGG16.decodePredictions(output[0]));
Merci ! @walidchergui