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Preface I have been dealing with neural networks (ANN) for a long time. I used to learn the principles. I have done a BPN exercise. I have not summarized it systematically. I recently read the torch source code, I have a better understanding of MLP, and I have made a summary by writing what I learned!Features of ANN (1) high concurrency Artificial Neural Networks are made up of many parallel combinations of
Before explaining the error back propagation algorithm, let's review the flow of the signal in the neural network. Please understand that when input vector \ (x\) input Perceptron, the first initialization weight vector \ (w\) is randomly composed, can also be understood as we arbitrarily set the initial value, and the input do dot product operation, and then the model through the weight update formula to c
This note describes the third week of convolutional neural networks: Target detection (1) Basic object detection algorithmThe main contents are:1. Target positioning2. Feature Point detection3. Target detectionTarget positioningUse the algorithm to determine whether the image is the target object, if you want to also mark the picture of its position and use the border marked outAmong the problems we have studied, the idea of image classification can h
Go to: 50488727Input data becomes price forecast:105.0,2,0.89,510.0105.0,2,0.89,510.0138.0,3,0.27,595.0135.0,3,0.27,596.0106.0,2,0.83,486.0105.0,2,0.89,510.0105.0,2,0.89,510.0143.0,3,0.83,560.0108.0,2,0.91,450.0Recently, a method is used to write a paper, which is based on the optimal combination prediction of neural network, the main ideas are as follows: based on the combination forecasting model base of
?? The error inverse propagation algorithm is by far the most successful neural network learning algorithm, the use of neural networks in practical tasks, mostly using BP algorithm to train.?? Given training set\ (d={(x_1,y_1), (x_2,y_2),...... (x_m,y_m)},x_i \in r^d,y_i \in r^l\), that is, the input example is\ (d\)Attribute description, Output\ (l\)a result. ,
LeNet5 convolution neural network forward propagation # TensorFlow actual combat Google Depth Learning Framework 06 image recognition and convolution neural network # WIN10 Tensorflow1.0.1 python3.5.3 # CUDA v8.0 cudnn-8.0-windows10-x64-v5.1 # filename:LeNet5_infernece.py # LeNet5 forward propagate import TensorFlow
Sample program Download: Http://files.cnblogs.com/gpcuster/ANN3.rarIf you have questions, please refer to the FAQIf you do not find a satisfactory answer, you can leave a message below:)0 CatalogueIntroduction to Artificial neural network (1)--application of single-layer artificial neural networkIntroduction to Artificial neu
Source: Michael Nielsen's "Neural Network and Deep learning", click the end of "read the original" To view the original English.This section translator: Hit Scir master Li ShengyuDisclaimer: If you want to reprint please contact [email protected], without authorization not reproduced. Using neural networks to recognize handwritten numbers How
The basic knowledge of neural network can refer to the basic knowledge of neural network, the basic thing is very good, and then the solution of the parameters in the neural network is explained. Some variables are explained: Th
ICML 2016 's article [Noisy Activation Functions] gives the definition of an activation function: The activation function is a map h:r→r and is almost everywhere.The main function of the activation function in neural network is to provide the nonlinear modeling ability of the network, if not specifically, the activation function is generally nonlinear function. A
At present, there are neural networks in all aspects of engineering application, and younger brother is now learning neural network, a little conjecture.Most of the current neural network is to adjust their own weights, so as to learn. Under the structure of a certain
The Microsoft Neural Network is by far the most powerful and complex algorithm. To find out how complex it is, look at the SQL Server Books Online description of the algorithm: "This algorithm establishes a classification and regression mining model by establishing a multi-layered perceptual neuron network." Similar to the Microsoft Decision tree algorithm, when
BP Neural Network is a multi-layer feedforward neural network which is trained according to the error inverse propagation algorithm, and is the most widely used neural network at present.BP ne
Recently, the journal Platform Distill published an article by Google researchers, introducing a powerful tool for neural network visualization and style migration: micro-image parameterization. This article describes the tool in several ways. Image Classification Neural network has excellent image generation capa
Why should I introduce an activation function?If you don't have to activate the function (actually equivalent to the excitation function is f (x) =x), in this case you each layer of output is a linear function of the upper input, it is easy to verify that no matter how many layers of your neural network, the output is a linear combination of input, and no hidden layer effect, this is the most primitive perc
This paper, based on the http://en.wikipedia.org/wiki/Backpropagation of Wikipedia, makes a summary of the neural network's back propagation algorithm, and makes a simple formula derivation.A typical post-propagation algorithm for a 3-layer neural network with only 1 hidden layers is as follows:Initialize network weigh
The contents of this article for I learn to understand, there is wrong place also please point out. The so-called BP neural Network (back propagation) is to use the known data set along the neural network forward to calculate the predicted value, so as to obtain the deviation between the predicted value and the actua
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 ma
The ① Artificial Neural Network (ANN) is a widely connected giant system. Neuro-scientific research shows that the main part of the human central nerve cortex is composed of 10[11]~10[12] neurons, each neuron has a 10[1]~10[5] synapse, Synapse is a junction between neurons, determining the strength and nature of the connection between neurons. This suggests that the cerebral cortex is an extensively connect
Public Course address:Https://class.coursera.org/ml-003/class/index INSTRUCTOR:Andrew Ng 1. Cost Function ( Cost functions ) The last lecture introduced the multiclass classification problem. The difference between the multiclass classification problem and the binary classification problem lies in that there are multiple output units, which are summarized as follows: At the same time, we also know the price functions of Logistic regression as follows: The first half repres
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