课程主页:http://cs231n.stanford.edu/     参考: 细说卷积神经网络:http://blog.csdn.net/han_xiaoyang/article/details/50542880 (有一个系列,讲的很好.)…

零.说明: 本文的所有代码均可在 DML 找到,欢迎点星星. 注.CNN的这份代码非常慢,基本上没有实际使用的可能,所以我只是发出来,代表我还是实践过而已 一.引入: CNN这个模型实在是有些年份了,最近随着深度学习的兴起又开始焕发青春了,把imagenet测试的准确度提高了非常多,一个是Alex的工作,然后最近好像Zeiler又有突破性的成果,可惜这些我都没看过,主要是imagenet的数据太大了,我根本没有可能跑得动,所以学习的积极性有些打折扣.不说那么多,还是先实现一个最基础的CNN再说吧…

CNN介绍 与之前的神经网络不同之处在于,CNN明确指定了输入就是图像,这允许我们将某些特征编码到CNN的结构中去,不仅易于实现,还能极大减少网络的参数. 一. 结构概述 与一般的神经网络不同,卷积神经网络尤其特殊之处.一般的神经网络每一层与前一层之间采用全连接:一层中的神经元之间也是互相独立的,并不共享权值:最后一层全连接层陈伟输出层,在分类任务中出表示类别得分.CIFAR-10中图像是32*32*3=3072,所以,与输入相连的第一个隐层的每个神经元的参数都有3072个,如果图像尺寸更大,那…

在CNN(1)和CNN(2)两篇文章中,主要说明的是CNN的基本架构和权值共享(Weight Sharing),本文则重点介绍卷积的部分. 首先,在卷积之前,我们的数据是4D的tensor(width,height,channels,batch),在CNN(1):Architecture一文中,曾经提到过.这里的通道,和之前所说的depth是一个概念,例如一张Grey Scale Image,其通道数为1:RGB图的通道数为3. 而事实上,kernel也是有channel的,并且其数量与输入te…

CNN综述文章 的翻译 [2019 CVPR] A Survey of the Recent Architectures of Deep Convolutional Neural Networks 翻译 综述深度卷积神经网络架构:从基本组件到结构创新 目录 摘要    1.引言    2.CNN基本组件        2.1 卷积层        2.2 池化层        2.3 激活函数        2.4 批次归一化        2.5 Dropout        2.6 全连接层…

 申明:本文非笔者原创,原文转载自:http://www.36dsj.com/archives/24006 自今年七月份以来,一直在实验室负责卷积神经网络(Convolutional Neural Network,CNN),期间配置和使用过theano和cuda-convnet.cuda-convnet2.为了增进CNN的理解和使用,特写此博文,以其与人交流,互有增益.正文之前,先说几点自己对于CNN的感触.先明确一点就是,Deep Learning是全部深度学习算法的总称,CNN是深度学习…

论文  < Convolutional Neural Networks for Sentence Classification>通过CNN实现了文本分类. 论文地址: 666666 模型图: 模型解释可以看论文,给出code and comment: # -*- coding: utf-8 -*- # @time : 2019/11/9 13:55 import numpy as np import torch import torch.nn as nn import torch.optim…

http://www.wildml.com/2015/11/understanding-convolutional-neural-networks-for-nlp/ 讲CNN以及其在NLP的应用,非常深入浅出的讲法,好文,mark. When we hear about Convolutional Neural Network (CNNs), we typically think of Computer Vision. CNNs were responsible for major breakt…

Ahmet Taspinar Home About Contact Building Convolutional Neural Networks with Tensorflow Posted on augustus 15, 2017 adminPosted in convolutional neural networks, deep learning, tensorflow 1. Introduction In the past I have mostly written about ‘clas…

An Intuitive Explanation of Convolutional Neural Networks https://ujjwalkarn.me/2016/08/11/intuitive-explanation-convnets/ Posted on August 11, 2016 by ujjwalkarn What are Convolutional Neural Networks and why are they important? Convolutional Neural…

When we hear about Convolutional Neural Network (CNNs), we typically think of Computer Vision. CNNs were responsible for major breakthroughs in Image Classification and are the core of most Computer Vision systems today, from Facebook’s automated pho…

Table of Contents: Architecture Overview ConvNet Layers Convolutional Layer Pooling Layer Normalization Layer Fully-Connected Layer Converting Fully-Connected Layers to Convolutional Layers ConvNet Architectures Layer Patterns Layer Sizing Patterns C…

http://cs231n.github.io/   里面有很多相当好的文章 http://cs231n.github.io/convolutional-networks/ Table of Contents: Architecture Overview ConvNet Layers Convolutional Layer Pooling Layer Normalization Layer Fully-Connected Layer Converting Fully-Connected Laye…

https://ujjwalkarn.me/2016/08/11/intuitive-explanation-convnets/ An Intuitive Explanation of Convolutional Neural Networks Posted on August 11, 2016 by ujjwalkarn What are Convolutional Neural Networks and why are they important? Convolutional Neural…

An Intuitive Explanation of Convolutional Neural Networks 原文地址:https://ujjwalkarn.me/2016/08/11/intuitive-explanation-convnets/comment-page-4/?unapproved=31867&moderation-hash=1ac28e426bc9919dc1a295563f9c60ae#comment-31867 一.什么是卷积神经网络.为什么卷积神经网络很重要? 卷…

ImageNet Classification with Deep Convolutional Neural Networks 深度卷积神经网络的ImageNet分类 Alex Krizhevsky University of Toronto 多伦多大学 kriz@cs.utoronto.ca Ilya Sutskever University of Toronto 多伦多大学 ilya@cs.utoronto.ca Geoffrey E. Hinton University of Toront…

CNN 大概是目前 CV 界最火爆的一款模型了,堪比当年的 SVM.从 2012 年到现在,CNN 已经广泛应用于CV的各个领域,从最初的 classification,到现在的semantic segmentation, object detection,instance segmentation,super resolution 甚至 optical flow 都能看的其身影.还真是,无所不能. 虽然 CNN 的应用可以说是遍地开花,但是细究起来,可以看到 CNN 的基本模型还是万变不离其宗…

Understanding the Effective Receptive Field in Deep Convolutional Neural Networks 理解深度卷积神经网络中的有效感受野 Abstract摘要 We study characteristics of receptive fields of units in deep convolutional networks. The receptive field size is a crucial issue in many vis…

Convolutional Neural Networks (CNNs / ConvNets) 前面做了如此漫长的铺垫,现在终于来到了课程的重点.Convolutional Neural Networks, 简称CNN,与之前介绍的一般的神经网络类似,CNN同样是由可以学习的权值与偏移量构成,每一个神经元接收一些输入,做点积运算加上偏移量,然后选择性的通过一些非线性函数,整个网络最终还是表示成一个可导的loss function,网络的起始端是输入图像,网络的终端是每一类的预测值,通过一个ful…

About this Course This course will teach you how to build convolutional neural networks and apply it to image data. Thanks to deep learning, computer vision is working far better than just two years ago, and this is enabling numerous exciting applica…

A Beginner's Guide To Understanding Convolutional Neural Networks Introduction Convolutional neural networks. Sounds like a weird combination of biology and math with a little CS sprinkled in, but these networks have been some of the most influential…

Adit Deshpande CS Undergrad at UCLA ('19) Blog About A Beginner's Guide To Understanding Convolutional Neural Networks Introduction Convolutional neural networks. Sounds like a weird combination of biology and math with a little CS sprinkled in, but…

Convolutional Neural Networks NOTE: This tutorial is intended for advanced users of TensorFlow and assumes expertise and experience in machine learning. Overview CIFAR-10 classification is a common benchmark problem in machine learning. The problem i…

This past summer I interned at Flipboard in Palo Alto, California. I worked on machine learning based problems, one of which was Image Upscaling. This post will show some preliminary results, discuss our model and its possible applications to Flipboa…

卷积神经网络(Convolutional Neural Networks/ CNN/ConvNets) 卷积神经网络和普通神经网络十分相似: 组成它们的神经元都具有可学习的权重(weights)和偏置(biases).每个神经元接受一些输入,执行一个点积操作,并且可能执行一个非线性函数最后得到该神经元的输出.整个网络仍然可以表示为一个可微评分函数.这个函数在一端输入图像的像素,在另一端得到某个类别的分数.同时卷积神经网络在做后一个层(fully-connected)上仍然具有损失函数--例如SV…

Image Scaling using Deep Convolutional Neural Networks This past summer I interned at Flipboard in Palo Alto, California. I worked on machine learning based problems, one of which was Image Upscaling. This post will show some preliminary results, dis…

Note This section assumes the reader has already read through Classifying MNIST digits using Logistic Regression and Multilayer Perceptron. Additionally, it uses the following new Theano functions and concepts: T.tanh, shared variables, basic arithme…

1 Foundations of Convolutional Neural Networks 1.1 cv问题 图像分类.目标检测.风格转换.但是高像素的图片会带来许多许多的特征. 1.2 边缘检测(卷积操作) 图像和卷积核(滤波器)移动相乘.横向.纵向滤波器.过滤器里的值也是可以学习的. 1.3 Padding(补白) 卷积会使图像变小,丢掉部分边缘信息.所以需要将边缘补白,补充为0. 假设图片尺寸为n,卷积尺寸为f.卷积之后会变为n-f+1尺寸. padd尺寸为p.valid convolu…

How to Use Convolutional Neural Networks for Time Series Classification 2019-10-08 12:09:35 This blog is from: https://towardsdatascience.com/how-to-use-convolutional-neural-networks-for-time-series-classification-56b1b0a07a57 Introduction A large am…

Paper Information Title:Convolutional Neural Networks on Graphs with Fast Localized Spectral FilteringAuthors:Michaël DefferrardXavier BressonPierre VandergheynstPaper:Download Source:NeurIPS 2016 Abstract 基于   spectral graph theory  ,为设计 localized c…