zoukankan      html  css  js  c++  java
  • The Convolutional Networks

    Convolutional Neural Network

    • Use Python to impliment a simple network for hanndwritten numeral classification.
    • At some point in your daily life,you may have seen some practical application of the target recognition algorithm,such as face detection on your mobile phone camera.But what is the principle of its work?The core of these computer vision solutions is the convolution neural network(CNN).Simply speaking,these networks are particularly good at constructing complex features based on less complex features.A classic example is the face detector.The face detector.The early layers are responsible for identifying vertical and horizontal lines,and the later stage is responsible for finding the nose and mouth.

    Primary neural network

    This article wil not introduce the general working principle of neural networkin detail,but you need some background knowledge to deal with convolution network.There is a layered architecture for neural networks.Each layer is composed of some nodes.Each node performs some mathematical operations on an input effectively,and obtains an output by calculation.The input that is provided to any given node node is the weighted sum of the output of the previous layer(and usually the bias item of 1 or 0).The algorithm will learn these weights during training.In order to learn these parameters,the output of running training can be compared with the real value and the weights can be updated by propagating errors in the network.

    The Unknown Word

    The First Column The Second Column
    horizontal 垂直的
    is reponsible for 负责
    convolution 卷积
    layed architecture 分层架构
    architecture 架构
    mathematical operations 数学运算
    concise [ken'sais]简明的
    by calculation 通过计算
    weights 权重
    propagating 反向传播['pra:pegeit]
    an error to be raised 引发错误
    raveling 拆开[ravling]
    reshape 重构
  • 相关阅读:
    java中的拷贝(二)深克隆
    java中的拷贝(一)
    java类的访问权限
    对象和对象引用
    equals和==
    类与继承(一)
    WebSocket简单介绍
    php获取请求的方式(get/post)
    php 使用jquery实现ajax
    PHP 系统常量及自定义常量
  • 原文地址:https://www.cnblogs.com/hugeng007/p/9368273.html
Copyright © 2011-2022 走看看