Center Loss - A Discriminative Feature Learning Approach for Deep Face Recognition
URL:http://ydwen.github.io/papers/WenECCV16.pdf
这篇论文主要的贡献就是提出了Center Loss的损失函数,利用Softmax Loss和Center Loss联合来监督训练,在扩大类间差异的同时缩写类内差异,提升模型的鲁棒性。

为了直观的说明softmax loss的影响,作者在对LeNet做了简单修改,把最后一个隐藏层输出维度改为2,然后将特征在二维平面可视化,下面两张图分别是MNIDST的train集和test集,可以发现类间差异比较明显,但是类内的差异也比较明显。
为了减小类内差异论文提出了Center Loss:大专栏 Center Loss - A Discriminative Feature Learning Approach for Deep Face Recognition-Deep-Face-Recognition-image004.png" alt=""/>
Cyi就是类的中心点特征,Cyi的计算方法就是yi类样本特征的均值,为了让center loss在神经网络训练过程中切实可行,Cyi的计算是对于每一个mini-batch而言,因此结合Softmax Loss,整个网络的损失函数就变成了, λ用来平衡这两个Loss:
用同样的网路结构只是将Softmax Loss替换成Center Loss作者在MNIST数据集上做了同样的实验,对于不同的λ值得到了如下可视化结果可以发现Center Loss还是比较明显的减小了类内差异同时类间差异也比较突出。
在公开数据集上的表现:
Center Loss - A Discriminative Feature Learning Approach for Deep Face Recognition的更多相关文章
- [论文阅读] A Discriminative Feature Learning Approach for Deep Face Recognition (Center Loss)
原文: A Discriminative Feature Learning Approach for Deep Face Recognition 用于人脸识别的center loss. 1)同时学习每 ...
- A Discriminative Feature Learning Approach for Deep Face Recognition
url: https://kpzhang93.github.io/papers/eccv2016.pdf year: ECCV2016 abstract 对于人脸识别任务来说, 网络学习到的特征具有判 ...
- 损失函数Center Loss 代码解析
center loss来自ECCV2016的一篇论文:A Discriminative Feature Learning Approach for Deep Face Recognition. 论文链 ...
- 论文笔记之:Heterogeneous Face Attribute Estimation: A Deep Multi-Task Learning Approach
Heterogeneous Face Attribute Estimation: A Deep Multi-Task Learning Approach 2017.11.28 Introductio ...
- 图像分类之特征学习ECCV-2010 Tutorial: Feature Learning for Image Classification
ECCV-2010 Tutorial: Feature Learning for Image Classification Organizers Kai Yu (NEC Laboratories Am ...
- Joint Detection and Identification Feature Learning for Person Search
Joint Detection and Identification Feature Learning for Person Search 2018-06-02 本文的贡献主要体现在: 提出一种联合的 ...
- 论文笔记:Learning how to Active Learn: A Deep Reinforcement Learning Approach
Learning how to Active Learn: A Deep Reinforcement Learning Approach 2018-03-11 12:56:04 1. Introduc ...
- 《3-D Deep Learning Approach for Remote Sensing Image Classification》论文笔记
论文题目<3-D Deep Learning Approach for Remote Sensing Image Classification> 论文作者:Amina Ben Hamida ...
- paper 124:【转载】无监督特征学习——Unsupervised feature learning and deep learning
来源:http://blog.csdn.net/abcjennifer/article/details/7804962 无监督学习近年来很热,先后应用于computer vision, audio c ...
随机推荐
- 反射(hasattr和setattr和delattr)
反射(hasattr和setattr和delattr) 一.反射在类中的使用 反射就是通过字符串来操作类或者对象的属性, 反射本质就是在使用内置函数,其中反射有以下四个内置函数: hasattr:通过 ...
- Mybatis入门——基础方式的增删该查、mapper动态代理方式的CRUD、类型转换器
一.基础方式的增删该查: 1.mybatis约定:输入参数parameterType和输出参数resulrType在形式上只能有一个. 2.如果输入/输出参数:是简单类型(8个基本类型加String) ...
- 蓝桥杯 乘积最大(区间dp、数据水的话long long,暴力就能过)
Description 今年是国际数学联盟确定的“2000——世界数学年”,又恰逢我国著名数学家华罗庚先生诞辰90周年.在华罗庚先生的家乡江苏金坛,组织了一场别开生面的数学智力竞赛的活动,你的一个好朋 ...
- Linux] Git: push 出错的解决 master -> master (branch is currently checked out)
在使用Git Push代码到数据仓库时,提示如下错误: [remote rejected] master -> master (branch is currently checked out ...
- MplayerX 安装
从老的笔记本中,把MplayerX.app 复制到新笔记本并放到应用程序目录中,可以直接用. 但播放时出现花屏,百度得到原因是新的硬件加速不支持, 解决办法是,在偏好设置-> 高级 -> ...
- xls文件转化txt
xls文件转化txt # -*- coding:utf-8 -*- # 安装pywin32包 http://sourceforge.net/projects/pywin32/files/pywin32 ...
- Angular ng-container ng-template 用法
ng-container本身不创建任何html代码,相当于一个容器. <ng-container *ngFor="let item of dataSource;let i=index& ...
- TPO3-2Depletion of Ogallala Aquifer
The vast grasslands of the High Plains in the central United States were settled by farmers and ranc ...
- index|substr
#!/usr/bin/perl use strict; use warnings; $_ = 'duwanxkm,c.,df;oq123@#!@%$#^'; my $d ='d';my $o = 'o ...
- USB Reverse Tether (a dirty solution)
Tether your android phone to your PC using USB cable could share your 3g Internet connection with PC ...