convolutional neural network explained

Transferred from: http://blog.csdn.net/u014380165/article/details/77284921 We know that convolutional neural Network (CNN) has been widely used in the field of image, in general, a CNN network mainly includes convolutional layer, pool layer (pooling), fully connected layer,

edge to 256 D to get B, and then in the center of B take 256*256 square picture to get C, and then randomly extract 224*224 on C as a training sample, and then in the combination of image level inverse increase the sample to achieve data gain. This gain method is 2048 times times the sample increase, allowing us to run a larger network.(2) Adjust the RGB valueThe specific idea is: To do PCA analysis of three channel, get the main component, make some

. Most likely exceptions in TestMnist.exe 0x00007ffaf3531f28: Microsoft C + + exception: Cryptopp::aes_phm_decryption::i at memory location 0x0b4e7d60 Nvalidciphertextorkey. 0x00007ffaf3531f28 most likely exception in TestMnist.exe: Microsoft C + + exception: Fl::filesystem::P athnotfound at memory location 0x0014e218. 0x00007ffaf3531f28 most likely exception in TestMnist.exe: Microsoft C + + exception: Xsd_binder::malformeddocumenterror at memory location 0X0014CF10.Off-topic, if you need to pu

C ++ convolutional neural network example: tiny_cnn code explanation (9) -- partial_connected_layer Structure Analysis (bottom) In the previous blog, we focused on analyzing the structure of the member variables of the partial_connected_layer class. In this blog, we will continue to give a brief introduction to other member functions in the partial_connected_laye

Code reference: Http://deeplearning.net/tutorial/lenet.html#lenetCode Learning: http://blog.csdn.net/u012162613/article/details/43225445Experiment code download for this section: Github2015/4/9Experiment 1: Using the tutorial recommended CNN structural Experimentlearning_rate=0.1n_cv= 20 # First-layer convolution core 20N_vc=50 #第二层卷积核50n_epochs=200batch_size=500n_hidden=500Experimental results:Experiment 2: Add a hidden layer on the tutorial basislearning_rate=0.1n_cv= 20 # First-layer convolut

: test_features, y: test_labes}))sess.close() 1. Define weight, biases, Conv layer, pool Layer def Weight(shape): initial = tf.truncated_normal(shape, stddev=0.1) return tf.Variable(initial, tf.float32)def biases(shape): initial = tf.constant(0.1, shape=shape) return tf.Variable(initial, tf.float32)def conv(inputs, w): return tf.nn.conv2d(inputs, w, strides=[1, 1, 1, 1], padding=‘SAME‘)def pool(inputs): return tf.nn.max_pool(inputs, ksize=[1, 1, 1, 1], strides=[1, 2, 2, 1], pa

Why use convolution? In traditional neural networks, such as Multilayer perceptron (MLP), whose input is usually a feature vector, requires manual design features, and then the values of these features to form a feature vector, in the past decades of experience, the characteristics of artificial found is not how to use, sometimes more, sometimes less, Sometimes the selected features do not work at all (the truly functional feature is inside the vast u

nodes in the previous layer.Unlike the common multilayer neural network, there are feature extraction and dimensionality reduction layers in the convolutional neural network, where the junction links are partially connected and a feature map is generated from a convolution

Content Overview Word Recognition system LeNet-5 Simplified LeNet-5 System The realization of convolutional neural network Deep neural network has achieved unprecedented success in the fields of speech recognition, image recognition and so on. I hav

Learning Goals Understand the convolution operation Understand the pooling operation Remember the vocabulary used in convolutional neural network (padding, stride, filter, ...) Build a convolutional neural network