neural network for handwriting recognition

Classification BPN (Back Propagation net) Here I will introduce the Back-Propagation Network BPN-the back-propagation error of the drive item. A back propagation neural network is a multi-layer network that trains weights for non-linear differential functions, and is a type of forward

require a lot of data and strong hardware computing power. Previously limited by data volume and computing power, has been tepid. In recent years the Internet has flourished, all kinds of information have been realized data, the amount of data is greatly increased, you think of your online shopping when you stay on the Internet information you know. In addition, the computer hardware in accordance with the "Moore's Law" development, the exponential growth of computing power, which provides a go

How CNN applies to NLP What is convolution and what is convolution neural network is not spoken, Google. Starting with the application of natural language processing (so, how does any of this apply to NLP?).Unlike image pixels, a matrix is used in natural language processing to represent a sentence or a passage as input, and each row of the matrix represents a token, either a word or a character. So each ro

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

focus on the accuracy of the neural network output PC, y1 is the PC　　　　　　Feature Point DetectionThe neural network can realize the recognition of the target feature by outputting the feature point (x, y) coordinates on the image.To build such a

Foundation of Neural Network (Early Warning: This section begins with mathematical notation and the necessary calculus, linear algebra Operations) Overview of this section As mentioned in the previous lecture, "Learning" is about getting the computer to automatically implement a complex function that completes the mapping from input x to output Y. The basic framework of machine learning is shown in the fol

1.computer Vision CV is an important direction of deep learning, CV generally includes: image recognition, target detection, neural style conversion Traditional neural network problems exist: the image of the input dimension is larger, as shown, this causes the weight of the W dimension is larger, then he occupies a l

AlexNet: (ILSVRC Top 5 test error rate of 15.4%) the first successful display of the convolutional neural network potential network structure. key point: with a large amount of data and long-time training to get the final model, the results are very significant (get 2012 classification first) using two GPU, divided into two groups for convolution. Since Alex

REF: Convolution neural network CNNs from LeNet-5The qac of some of the posts in this article:1. FundamentalsMLP (Multilayer Perceptron, multilayer perceptron) is a forward neural network (as shown), and is fully connected between adjacent two-layer networks.Sigmoid typically use the Tanh function and the logistic func

information transfer rates (network throughput) Low-cost, small-scale construction of a particular structure network How to add a priori information to a neural network: There is no effective rule to achieve A special process can be implemented: Restricting th

CNN (convolutional neural Network)Convolutional Neural Networks (CNN) dating back to the the 1960s, Hubel and others through the study of the cat's visual cortex cells show that the brain's access to information from the outside world is stimulated by a multi-layered receptive Field. On the basis of feeling wild, 1980 Fukushima proposed a theoretical model Neocog

http://mp.weixin.qq.com/s?__biz=MjM5ODkzMzMwMQ==mid=2650408190idx=1sn= f22adfb13fb14f8a220222355659913f1. How to understand the status of NLP: see some tips for the latest doctoral dissertationIt may be a shortcut to look at the current status of an area and see the latest doctoral dissertation. For example, there are children's shoes asked how to understand the State-of-the-art of NLP, in fact, Stanford, Berkeley, CMU, JHU and other schools recently selected doctoral theses, the field of mainst

Network Steps to do: (a Chinese, teach Chinese, why write a bunch of English?) ）1, sample Abatch of data (sampling)2,it through the graph, get loss (forward propagation, get loss value)3,backprop to calculate the geadiets (reverse propagation calculation gradient)4,update the paramenters using the gradient (using gradient update parameters)What convolutional neural networks can do:Category Fetch (recommende

1. Reading The Recurrent neural Network (NN) is the most commonly used neural network structure in NLP (Natural language Processing), and the convolution neural network is similar in the field of image

32 bit of precision, by sacrificing precision to reduce the amount of space required for each weight. The more extreme approach to this quantization is the fourth kind of technology called the two-way neural network. The so-called two-system neural network, is that all the weights do not have to express the floating-p

Weilin huang--"TIP2015" text-attentional convolutional neural Network for Scene Text Detection)Directory Author and RELATED LINKS Method Summary Innovation points and contributions Method details Experimental results Question Discussion Author and RELATED LINKS Summary and Harvest Point Author Supplemental Information Reference documents Author and