Reprint: http://www.cnblogs.com/jzhlin/archive/2012/07/30/bp_c.html
In the last article, we introduce the basic model of BP neural network, some terms in the model and the mathematical analysis of the model, and have a preliminary understanding of its principle. Then how to use the program language to specifically implement it, will be the next issue we need to discuss. This paper chooses the C language to
BP algorithm: 1. is a supervised learning algorithm, often used to train multilayer perceptron.2. The excitation function required for each artificial neuron (i.e. node) must be micro-(Excitation function: the function relationship between the input and output of a single neuron is called the excitation function.) )(If the excitation function is not used, each layer in the neural network is simply a linear
non-XOR (the same as 1, the difference is 0), all the output of our training model will be wrong, the model is not linear!2. Neural Network Introduction:We can construct the following models:(where a represents logic with, B is logical or inverse, C is logical OR)The above model is a simple neural network, we have con
Cyclic neural network--Realization
Gitbook Reading AddressKnowledge of reading address gradients disappearing and gradient explosions
Network recall: In the circular neural network-Introduction, the circular neural
LSTM (long-short term Memory, LSTM) is a time recurrent neural network that was first published in 1997. Due to its unique design structure, LSTM is suitable for handling and predicting important events with very long intervals and delays in time series. Based on the introduction of deep learning three Daniel, Lstm network has been proved to be more effective tha
Introduction to convolutional Neural Networks
Convolutional neural network is a multi-layer neural network that specializes in processing machine learning problems related to images, especially big images.
The most typical convolutional
Based on the traditional polynomial regression, neural network is inspired by the "activation" phenomenon of the biological neural network, and the machine learning model is built up by the activation function.In the field of image processing, because of the large amount of data, the problem is that the number of
Introduction to recurrent neural networks (RNN, recurrent neural Networks)
This post was reproduced from: http://blog.csdn.net/heyongluoyao8/article/details/48636251
The cyclic neural network (recurrent neural Networks,rnns) has been successfully and widely used in many nat
Neural networks have been very hot, there has been a period of depression, now because of deep learning reasons to continue to fire up. There are many kinds of neural networks: forward transmission network, reverse transmission network, recurrent neural
BP (Back Propagation) network is a multi-layer feed-forward Network trained by the error inverse propagation algorithm, which was proposed by a team of scientists led by Rumelhart and mccelland in 1986, it is one of the most widely used neural networks. The BP network can learn and store a large number of input-output
The BP (back propagation) network was presented by a team of scientists, led by Rumelhart and McCelland in 1986, and is a multi-layered feedforward network trained by error inverse propagation algorithm, which is one of the most widely used neural network models. The BP network
Deep Learning paper notes (IV.) The derivation and implementation of CNN convolution neural network[Email protected]Http://blog.csdn.net/zouxy09 I usually read some papers, but the old feeling after reading will slowly fade, a day to pick up when it seems to have not seen the same. So want to get used to some of the feeling useful papers in the knowledge points summarized, on the one hand in the process of
TensorFlow deep learning convolutional neural network CNN, tensorflowcnn
I. Convolutional Neural Network Overview
ConvolutionalNeural Network (CNN) was originally designed to solve image recognition and other problems. CNN's current applications are not limited to images and
First, IntroductionIn machine learning and combinatorial optimization problems, the most common method is gradient descent method. For example, BP Neural network, the more neurons (units) of multilayer perceptron, the larger the corresponding weight matrix, each right can be regarded as one degree of freedom or variable. We know that the higher the freedom, the more variables, the more complex the model, th
In the previous article, we saw how neural networks use gradient descent algorithms to learn their weights and biases. However, we still have some explanations: we did not discuss how to calculate the gradient of the loss function. This article will explain the well-known BP algorithm, which is a fast algorithm for calculating gradients.The inverse propagation algorithm (backpropagation ALGORITHM,BP) was presented at 1970s, but its importance was not
This paper study notes is their own understanding, if there are errors in the place, please correct criticism, common progress, thank you!Before the evaluation of teaching quality, only through the simple processing of teaching indicators, such as averaging or artificially given the weights of the indicators to sum weighted, the evaluation results with a great deal of subjectivity. Based on the BP neural network
Turn from: Http://matlabbyexamples.blogspot.com/2011/03/starting-with-neural-network-in-matlab.htmlThe Neural Networks is A-to-model any-input to output relations based-some input output data when nothing was known about the model. This example shows your a very simple example and its modelling through neural
The neural network is used to deal with the nonlinear relationship, the relationship between input and output can be determined (there is a nonlinear relationship), can take advantage of the neural network self-learning (need to train the data set with explicit input and output), training after the weight value determi
first, the Origin
Originally wanted to follow the traditional recursive algorithm to achieve maze game--> genetic algorithm to achieve maze game--> neural network maze game ideas, in this article also write how to use the neural network to achieve the maze, but the study, feel some trouble is not very good, so I chose
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