Principles of training multi-layer neural network using backpropagation http://galaxy.agh.edu.pl/~vlsi/AI/backp_t_en/backprop.html The project describes teaching process of multi-layer neural network employing backpropagation algorithm. To illustrate…
今天看到一篇1988年的老文章谈到了训练一个简单网络是NPC问题[1].也就是下面的网络结构,在线性激活函数下,如果要找到参数使得输入数据的标签估计准确,这个问题是一个NPC问题.这个文章的意义在于宣判了找简单的神经网络来降低计算难度是行不通的,同时找多项式内求解的算法也不用再考虑了. 站在时代的背景上,这篇文章反应了算力不足时期神经网络的尴尬位置,告诉我们算力设备是搞神经网络不可缺少的资源. [1] A. Blum and R. L. Rivest, "Training a 3-Node Ne…
This example shows how to use Neural Network Toolbox™ to train a deep neural network to classify images of digits. Neural networks with multiple hidden layers can be useful for solving classification problems with complex data, such as images. Each l…
1. Feedforward and cost function; 2.Regularized cost function: 3.Sigmoid gradient The gradient for the sigmoid function can be computed as: where: 4.Random initialization randInitializeWeights.m function W = randInitializeWeights(L_in, L_out) %RANDIN…
A Neural Network in 11 lines of Python A bare bones neural network implementation to describe the inner workings of backpropagation. Posted by iamtrask on July 12, 2015 Summary: I learn best with toy code that I can play with. This tutorial teaches b…
In this chapter, we'll cover the following recipes: Implementing Operational Gates Working with Gates and Activation Functions Implementing an One-Hidden-Layer Neural Network Implementing Different Layers Using Multilayer Networks Improving Predictio…
Building your Deep Neural Network: Step by Step Welcome to your third programming exercise of the deep learning specialization. You will implement all the building blocks of a neural network and use these building blocks in the next assignment to bui…
读这篇论文“ Multi Column Deep Neural Network for Traffic Sign Classification”是为了更加理解,论文“Multi-column Deep Neural Networks for Image Classification”…
w可以考虑从计算机的“机械性.重复性”特征去设计“低效的”算法. https://www.codeproject.com/articles/523074/webcontrols/ Online handwriting recognition using multi convolution neural networks Vietdungiitb, 13 Jan 2013 CPOL This article has been presented at The Ninth International…
转自:http://www.asimovinstitute.org/neural-network-zoo/ THE NEURAL NETWORK ZOO POSTED ON SEPTEMBER 14, 2016 BY FJODOR VAN VEEN   With new neural network architectures popping up every now and then, it's hard to keep track of them all. Knowing all the a…