cnn working

Cnn-convolutional Neural NetworksIn recent years in the field of machine vision is a very fire of acquiescence, first proposed by Yan LeCun.If you want to learn the details, see Li Feifei cs231n courseHow does it work?Give a picture, each circle is responsible for processing part of the picture.These circles form a filter.Filter identifies whether the specified pattern exists in the picture and in which region.There are 4 filter in the same color, the

This paper combines the application of deep learning, convolution neural Network for some basic applications, referring to LeCun's document 0.1 for partial expansion, and results display (in Python).Divided into the following parts:1. Convolution (convolution)2. Pooling (down sampling process)3. CNN Structure4. Run the experimentThe following are described separately.PS: This blog for the ESE machine learning short-term class reference (20140516 cours

The biggest problem with full-attached neural networks (Fully connected neural network) is that there are too many parameters for the full-connection layer. In addition to slowing down the calculation, it is easy to cause overfitting problems. Therefore, a more reasonable neural network structure is needed to effectively reduce the number of parameters in the neural network. convolutional Neural Networks (convolutional neural network,cnn) can do that.

CNN convolutional Neural network key points:{1} is a non-fully connected network (sparse network), compared to the BP neural network (fully connected network), of course, CNN can also have a portion of the layer is the full connection layer.{2} weight sharing (the same weight factor), which is the same as the convolution kernel (location independent), 1 convolution cores. 1 convolution cores correspond to a

1 PrefaceIn my previous blog, I introduced some of the ways to run CNN on iOS. But, in general, we need a powerful machine to run the CNN, we just need to use the resulting results for the mobile side. Before the code modified using UFLDL in MATLAB ran the 3-layer CNN of hand recognition, here we consider porting Matlab to Xcode.Step 1:matlab Turn CThe first thin

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For nearly one or two years, CNN has developed rapidly in the detection of this piece, and the following details review the development of the entire CNN testing domain model, as well as the development of time performance.First, RCNN process:Extract region (off model) + Extract features (on model) + classifyregions according feature (SVM or Softmax)Performance:Precision:Second, spp-net process:Do conv Firs

convolutional Neural Network is the first multi-layered neural network structure which has been successfully trained, and has strong fault tolerance, self-learning and parallel processing ability.First, the basic principle1.CNN algorithm Ideasconvolutional neural network can be regarded as a special case of Feedforward network, which simplifies and improves Feedforward network mainly in network structure, in theory, the inverse propagation algorithm c

TINY-CNN is a CNN-based open Source library whose license is the BSD 3-clause. The author has also been maintaining the update, which is helpful for further mastering CNN, so the following is the compilation and use of tiny-cnn in Windows7 64bit vs2013.1. Download the source code from HTTPS://GITHUB.COM/NYANP/TINY-

Describes how tensorflow trains its own dataset to implement CNN image classification, tensorflowcnn Training image data using convolutional neural networks involves the following steps: 1. Read image files2. Generate a batch for training3. Define the Training Model (including initialization parameters, convolution, pooling layer, and other parameters and networks)4. Training 1. Read image files def get_files(filename): class_train = [] label_train

1968, Hubel on the study of the visual cortex cells of cats, put forward the concept of receptive filed, the visual cells can be divided into simple cells and complex cells, respectively, the range of the field of perception, on the basis of biology, the study of two-dimensional image convolution neural network.Traditional image classification: Feature extraction + feature expression + Classification CNN sets these methods together,One, convolutional

Keras is a Theano and TensorFlow-compatible neural network Premium package that uses him to component a neural network more quickly, and several statements are done. and a wide range of compatibility allows Keras to run unhindered on Windows and MacOS or Linux.Today to compare learning to use Keras to build the following common neural network: Regression RNN regression Classification CNN Categories RNN classification Self-

http://blog.csdn.net/diamonjoy_zone/article/details/70576775Reference:1. inception[V1]: going deeper with convolutions2. inception[V2]: Batch normalization:accelerating deep Network Training by reducing Internal covariate Shift3. inception[V3]: Rethinking the Inception Architecture for computer Vision4. inception[V4]: inception-v4, Inception-resnet and the Impact of residual Connections on learning1. PrefaceThe NIN presented in the previous article made a notable contribution to the transformati

. Summarize the above experimental results:4. The following should be the principle of Li Feifei's Ted speech:5. Some recommendations for working with small datasets:V: Squeezing out of the last few Percent1. Using a small size filter is much better than using a large size filter, and a small size filter can increase the number of non-linearities and reduce the parameters that need to be trained (imagine a 7*7 patch with a 7 The filter convolution of

The original is: "The Impact of imbalanced Training Data for convolutional neural Networks" This blog is the paper's reading notes, there is inevitably a lot of details of the wrong place. Also hope that you crossing can forgive, welcome criticism correct. More related blog please poke: http://blog.csdn.net/cyh_24 If you want to reprint, please attach this article link: http://blog.csdn.net/cyh_24/article/details/49871387 Abstract This paper mainly studies the effec