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index.html
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<!DOCTYPE html>
<html style="display: none;" lang="zh">
<head>
<!-- hexo-inject:begin --><!-- hexo-inject:end --><meta charset="utf-8">
<!--
© Material Theme
https://github.com/viosey/hexo-theme-material
Version: 1.5.0 -->
<script>
window.materialVersion = "1.5.0"
// Delete localstorage with these tags
window.oldVersion = [
'codestartv1',
'1.3.4',
'1.4.0',
'1.4.0b1'
]
</script>
<!-- dns prefetch -->
<meta http-equiv="x-dns-prefetch-control" content="on">
<!-- Title -->
<title>
Freesouls
</title>
<!-- Meta & Info -->
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<meta name="format-detection" content="telephone=no"/>
<meta name="theme-color" content="#0097A7">
<meta name="author" content="Binbin Xu">
<meta name="description" itemprop="description" content="Freesouls Mind Palace">
<meta name="keywords" content="">
<!-- Import lsloader -->
<script>(function(){window.lsloader={jsRunSequence:[],jsnamemap:{},cssnamemap:{}};lsloader.removeLS=function(key){try{localStorage.removeItem(key)}catch(e){}};lsloader.setLS=function(key,val){try{localStorage.setItem(key,val)}catch(e){}};lsloader.getLS=function(key){var val="";try{val=localStorage.getItem(key)}catch(e){val=""}return val};versionString="/*"+(window.materialVersion||"unknownVersion")+"*/";lsloader.clean=function(){try{var keys=[];for(var i=0;i<localStorage.length;i++){keys.push(localStorage.key(i))}keys.forEach(function(key){var data=lsloader.getLS(key);if(window.oldVersion){var remove=window.oldVersion.reduce(function(p,c){return p||data.indexOf("/*"+c+"*/")!==-1},false);if(remove){lsloader.removeLS(key)}}})}catch(e){}};lsloader.clean();lsloader.load=function(jsname,jspath,cssonload,isJs){if(typeof cssonload==="boolean"){isJs=cssonload;cssonload=undefined}isJs=isJs||false;cssonload=cssonload||function(){};var code;code=this.getLS(jsname);if(code&&code.indexOf(versionString)===-1){this.removeLS(jsname);this.requestResource(jsname,jspath,cssonload,isJs);return}if(code){var versionNumber=code.split(versionString)[0];if(versionNumber!=jspath){console.log("reload:"+jspath);this.removeLS(jsname);this.requestResource(jsname,jspath,cssonload,isJs);return}code=code.split(versionString)[1];if(isJs){this.jsRunSequence.push({name:jsname,code:code});this.runjs(jspath,jsname,code)}else{document.getElementById(jsname).appendChild(document.createTextNode(code));cssonload()}}else{this.requestResource(jsname,jspath,cssonload,isJs)}};lsloader.requestResource=function(name,path,cssonload,isJs){var that=this;if(isJs){this.iojs(path,name,function(path,name,code){that.setLS(name,path+versionString+code);that.runjs(path,name,code)})}else{this.iocss(path,name,function(code){document.getElementById(name).appendChild(document.createTextNode(code));that.setLS(name,path+versionString+code)},cssonload)}};lsloader.iojs=function(path,jsname,callback){var that=this;that.jsRunSequence.push({name:jsname,code:""});try{var xhr=new XMLHttpRequest;xhr.open("get",path,true);xhr.onreadystatechange=function(){if(xhr.readyState==4){if(xhr.status>=200&&xhr.status<300||xhr.status==304){if(xhr.response!=""){callback(path,jsname,xhr.response);return}}that.jsfallback(path,jsname)}};xhr.send(null)}catch(e){that.jsfallback(path,jsname)}};lsloader.iocss=function(path,jsname,callback,cssonload){var that=this;try{var xhr=new XMLHttpRequest;xhr.open("get",path,true);xhr.onreadystatechange=function(){if(xhr.readyState==4){if(xhr.status>=200&&xhr.status<300||xhr.status==304){if(xhr.response!=""){callback(xhr.response);cssonload();return}}that.cssfallback(path,jsname,cssonload)}};xhr.send(null)}catch(e){that.cssfallback(path,jsname,cssonload)}};lsloader.iofonts=function(path,jsname,callback,cssonload){var that=this;try{var xhr=new XMLHttpRequest;xhr.open("get",path,true);xhr.onreadystatechange=function(){if(xhr.readyState==4){if(xhr.status>=200&&xhr.status<300||xhr.status==304){if(xhr.response!=""){callback(xhr.response);cssonload();return}}that.cssfallback(path,jsname,cssonload)}};xhr.send(null)}catch(e){that.cssfallback(path,jsname,cssonload)}};lsloader.runjs=function(path,name,code){if(!!name&&!!code){for(var k in this.jsRunSequence){if(this.jsRunSequence[k].name==name){this.jsRunSequence[k].code=code}}}if(!!this.jsRunSequence[0]&&!!this.jsRunSequence[0].code&&this.jsRunSequence[0].status!="failed"){var script=document.createElement("script");script.appendChild(document.createTextNode(this.jsRunSequence[0].code));script.type="text/javascript";document.getElementsByTagName("head")[0].appendChild(script);this.jsRunSequence.shift();if(this.jsRunSequence.length>0){this.runjs()}}else if(!!this.jsRunSequence[0]&&this.jsRunSequence[0].status=="failed"){var that=this;var script=document.createElement("script");script.src=this.jsRunSequence[0].path;script.type="text/javascript";this.jsRunSequence[0].status="loading";script.onload=function(){that.jsRunSequence.shift();if(that.jsRunSequence.length>0){that.runjs()}};document.body.appendChild(script)}};lsloader.tagLoad=function(path,name){this.jsRunSequence.push({name:name,code:"",path:path,status:"failed"});this.runjs()};lsloader.jsfallback=function(path,name){if(!!this.jsnamemap[name]){return}else{this.jsnamemap[name]=name}for(var k in this.jsRunSequence){if(this.jsRunSequence[k].name==name){this.jsRunSequence[k].code="";this.jsRunSequence[k].status="failed";this.jsRunSequence[k].path=path}}this.runjs()};lsloader.cssfallback=function(path,name,cssonload){if(!!this.cssnamemap[name]){return}else{this.cssnamemap[name]=1}var link=document.createElement("link");link.type="text/css";link.href=path;link.rel="stylesheet";link.onload=link.onerror=cssonload;var root=document.getElementsByTagName("script")[0];root.parentNode.insertBefore(link,root)};lsloader.runInlineScript=function(scriptId,codeId){var code=document.getElementById(codeId).innerText;this.jsRunSequence.push({name:scriptId,code:code});this.runjs()};lsloader.loadCombo=function(jslist){var updateList="";var requestingModules={};for(var k in jslist){var LS=this.getLS(jslist[k].name);if(!!LS){var version=LS.split(versionString)[0];var code=LS.split(versionString)[1]}else{var version=""}if(version==jslist[k].path){this.jsRunSequence.push({name:jslist[k].name,code:code,path:jslist[k].path})}else{this.jsRunSequence.push({name:jslist[k].name,code:null,path:jslist[k].path,status:"comboloading"});requestingModules[jslist[k].name]=true;updateList+=(updateList==""?"":";")+jslist[k].path}}var that=this;if(!!updateList){var xhr=new XMLHttpRequest;xhr.open("get",combo+updateList,true);xhr.onreadystatechange=function(){if(xhr.readyState==4){if(xhr.status>=200&&xhr.status<300||xhr.status==304){if(xhr.response!=""){that.runCombo(xhr.response,requestingModules);return}}else{for(var i in that.jsRunSequence){if(requestingModules[that.jsRunSequence[i].name]){that.jsRunSequence[i].status="failed"}}that.runjs()}}};xhr.send(null)}this.runjs()};lsloader.runCombo=function(comboCode,requestingModules){comboCode=comboCode.split("/*combojs*/");comboCode.shift();for(var k in this.jsRunSequence){if(!!requestingModules[this.jsRunSequence[k].name]&&!!comboCode[0]){this.jsRunSequence[k].status="comboJS";this.jsRunSequence[k].code=comboCode[0];this.setLS(this.jsRunSequence[k].name,this.jsRunSequence[k].path+versionString+comboCode[0]);comboCode.shift()}}this.runjs()}})();</script>
<!-- Import queue -->
<script>function Queue(){this.dataStore=[];this.offer=b;this.poll=d;this.execNext=a;this.debug=false;this.startDebug=c;function b(e){if(this.debug){console.log("Offered a Queued Function.")}if(typeof e==="function"){this.dataStore.push(e)}else{console.log("You must offer a function.")}}function d(){if(this.debug){console.log("Polled a Queued Function.")}return this.dataStore.shift()}function a(){var e=this.poll();if(e!==undefined){if(this.debug){console.log("Run a Queued Function.")}e()}}function c(){this.debug=true}}var queue=new Queue();</script>
<!-- Favicons -->
<link rel="icon shortcut" type="image/ico" href="/img/favicon.png">
<link rel="icon" sizes="192x192" href="/img/favicon.png">
<link rel="apple-touch-icon" href="/img/favicon.png">
<!--iOS -->
<meta name="apple-mobile-web-app-title" content="Title">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="HandheldFriendly" content="True">
<meta name="MobileOptimized" content="480">
<!-- Add to homescreen for Chrome on Android -->
<meta name="mobile-web-app-capable" content="yes">
<!-- Add to homescreen for Safari on iOS -->
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-title" content="Freesouls">
<!-- Site Verification -->
<!-- RSS -->
<!--[if lte IE 9]>
<link rel="stylesheet" href="/css/ie-blocker.css">
<script src="/js/ie-blocker.zhCN.js"></script>
<![endif]-->
<!-- Import CSS -->
<style id="material_css"></style><script>if(typeof window.lsLoadCSSMaxNums === "undefined")window.lsLoadCSSMaxNums = 0;window.lsLoadCSSMaxNums++;lsloader.load("material_css","/css/material.min.css?Z7a72R1E4SxzBKR/WGctOA==",function(){if(typeof window.lsLoadCSSNums === "undefined")window.lsLoadCSSNums = 0;window.lsLoadCSSNums++;if(window.lsLoadCSSNums == window.lsLoadCSSMaxNums)document.documentElement.style.display="";}, false)</script>
<style id="style_css"></style><script>if(typeof window.lsLoadCSSMaxNums === "undefined")window.lsLoadCSSMaxNums = 0;window.lsLoadCSSMaxNums++;lsloader.load("style_css","/css/style.min.css?MKetZV3cUTfDxvMffaOezg==",function(){if(typeof window.lsLoadCSSNums === "undefined")window.lsLoadCSSNums = 0;window.lsLoadCSSNums++;if(window.lsLoadCSSNums == window.lsLoadCSSMaxNums)document.documentElement.style.display="";}, false)</script>
<!-- Config CSS -->
<!-- Other Styles -->
<style>
body, html {
font-family: Roboto, "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
overflow-x: hidden !important;
}
code {
font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
}
a {
color: #00838F;
}
.mdl-card__media,
#search-label,
#search-form-label:after,
#scheme-Paradox .hot_tags-count,
#scheme-Paradox .sidebar_archives-count,
#scheme-Paradox .sidebar-colored .sidebar-header,
#scheme-Paradox .sidebar-colored .sidebar-badge{
background-color: #0097A7 !important;
}
/* Sidebar User Drop Down Menu Text Color */
#scheme-Paradox .sidebar-colored .sidebar-nav>.dropdown>.dropdown-menu>li>a:hover,
#scheme-Paradox .sidebar-colored .sidebar-nav>.dropdown>.dropdown-menu>li>a:focus {
color: #0097A7 !important;
}
#post_entry-right-info,
.sidebar-colored .sidebar-nav li:hover > a,
.sidebar-colored .sidebar-nav li:hover > a i,
.sidebar-colored .sidebar-nav li > a:hover,
.sidebar-colored .sidebar-nav li > a:hover i,
.sidebar-colored .sidebar-nav li > a:focus i,
.sidebar-colored .sidebar-nav > .open > a,
.sidebar-colored .sidebar-nav > .open > a:hover,
.sidebar-colored .sidebar-nav > .open > a:focus,
#ds-reset #ds-ctx .ds-ctx-entry .ds-ctx-head a {
color: #0097A7 !important;
}
.toTop {
background: #757575 !important;
}
.material-layout .material-post>.material-nav,
.material-layout .material-index>.material-nav,
.material-nav a {
color: #757575;
}
#scheme-Paradox .MD-burger-layer {
background-color: #757575;
}
#scheme-Paradox #post-toc-trigger-btn {
color: #757575;
}
.post-toc a:hover {
color: #00838F;
text-decoration: underline;
}
</style>
<!-- Theme Background Related-->
<style>
body{
background-color: #F5F5F5;
}
/* blog_info bottom background */
#scheme-Paradox .material-layout .something-else .mdl-card__supporting-text{
background-color: #fff;
}
</style>
<!-- Fade Effect -->
<style>
.fade {
transition: all 800ms linear;
-webkit-transform: translate3d(0,0,0);
-moz-transform: translate3d(0,0,0);
-ms-transform: translate3d(0,0,0);
-o-transform: translate3d(0,0,0);
transform: translate3d(0,0,0);
opacity: 1;
}
.fade.out{
opacity: 0;
}
</style>
<!-- Import Font -->
<!-- Import Roboto -->
<link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500" rel="stylesheet">
<!-- Import Material Icons -->
<style id="material_icons"></style><script>if(typeof window.lsLoadCSSMaxNums === "undefined")window.lsLoadCSSMaxNums = 0;window.lsLoadCSSMaxNums++;lsloader.load("material_icons","/css/material-icons.css?pqhB/Rd/ab0H2+kZp0RDmw==",function(){if(typeof window.lsLoadCSSNums === "undefined")window.lsLoadCSSNums = 0;window.lsLoadCSSNums++;if(window.lsLoadCSSNums == window.lsLoadCSSMaxNums)document.documentElement.style.display="";}, false)</script>
<!-- Import jQuery -->
<script>lsloader.load("jq_js","/js/jquery.min.js?qcusAULNeBksqffqUM2+Ig==", true)</script>
<!-- The Open Graph protocol -->
<meta property="og:url" content="http://freesouls.github.io">
<meta property="og:type" content="blog">
<meta property="og:title" content="Freesouls">
<meta property="og:image" content="http://freesouls.github.io/img/favicon.png" />
<meta property="og:description" content="Freesouls Mind Palace">
<!-- The Twitter Card protocol -->
<meta name="twitter:title" content="Freesouls">
<meta name="twitter:description" content="Freesouls Mind Palace">
<meta name="twitter:image" content="http://freesouls.github.io/img/favicon.png">
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:url" content="http://freesouls.github.io" />
<!-- Add canonical link for SEO -->
<link rel="canonical" href="http://freesouls.github.io" />
<!-- Structured-data for SEO -->
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "Website",
"publisher": {
"@type": "Organization",
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<p class="article-headline-p"><a href="/2016/03/30/rethinking-deep-residual-networks/">Re-thinking Deep Residual Networks</a></p>
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本文是对ImageNet 2015的冠军ResNet(Deep Residual Networks)以及目前围绕ResNet这个工作研究者后续所发论文的总结，主要涉及到下面5篇论文。
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<strong>Binbin Xu</strong>
<span>3月 30, 2016</span>
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<p class="article-headline-p"><a href="/2016/03/28/em-algorithm/">EM算法原理解析</a></p>
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EM算法本文主要基于Andrew Ng的Lecture Notes(下载原文)，附加一些我个人的总结和理解。
EM全称Expectation Maximization，翻译成最大化期望算法，是在概率模型中寻找参数最大似然估计或者最大后验估计的算法，其中概率模型依赖于无法观测的隐藏变量（Latent Variable）
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<strong>Binbin Xu</strong>
<span>3月 28, 2016</span>
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<p class="article-headline-p"><a href="/2016/02/27/backpack-problem-II/">完全背包问题</a></p>
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之前已经讲解过0-1背包问题，今天来讨论另外一种：完全背包问题
1. 问题描述之前0-1背包问题的问题描述如下
给出n个物品的体积A[i]和其价值V[i]，将他们装入一个大小为m的背包，最多能装入的总价值有多大？
而今天要讨论的完全背包问题描述如下
给出n种物品的体积A[i]和其价值V[i]，每一种物品都有无限个，将这n种物品装入一个大小为m的背包，最多能装入的总价值有多大？
我们可以发现区别在于：对于每一种物体，不再是之前0-1问题，而是0-k，k表示能放多个，k有可能是0，1，2…
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<strong>Binbin Xu</strong>
<span>2月 27, 2016</span>
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<p class="article-headline-p"><a href="/2016/02/25/backpack-problem/">0-1背包问题</a></p>
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背包问题是一个非常经典的问题，今天我们就来讨论其中的一种：0-1背包问题
1. 问题描述
给出n个物品的体积A[i]和其价值V[i]，将他们装入一个大小为m的背包，最多能装入的总价值有多大？
为什么叫0-1背包问题呢，题目中假设每一种背包只有装和不装两种情况，我们不可能装入两个A[0]的物品，所以叫0-1背包问题
2. 转移方程我们构造一个二维的转移数组dp[i][j]，表示前面i个物品放入总体积为j的背包中所获得的最大价值，那么：12dp[i][j] = max(dp[i-1][j], dp[i-1][j-A[i]] + V[i]);// dp[i-1][j]表示不放入物品A[i], dp[i-1][j-A[i]] + V[i]表示放入物品A[i]所得到的最大价值
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<strong>Binbin Xu</strong>
<span>2月 25, 2016</span>
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<p class="article-headline-p"><a href="/2016/02/09/virtual-function-in-cpp/">C++内部如何利用虚函数实现多态机制</a></p>
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1. 引言什么是虚函数？在某基类中声明为virtual 并在一个或多个派生类中被重新定义的成员函数叫虚函数。比如下面这个例子：
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<strong>Binbin Xu</strong>
<span>2月 09, 2016</span>
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<p class="article-headline-p"><a href="/2016/01/13/residual-network/">Deep Residual Network实验复现</a></p>
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1. Deep Residual Network论文下载
在2015年的ImageNet比赛中，MSRA的He Kaiming用deep residual network取得了惊人的成果，不仅在多个task上排名榜首，而且远超第二名好多好多。这极大的引起了我对Deep Residual Network的好奇心，想要玩一玩Deep Residual Network。
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<strong>Binbin Xu</strong>
<span>1月 13, 2016</span>
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最近在刷LeetCode，因为过年回学校就要找实习了，Solutions戳我的github链接，
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<strong>Binbin Xu</strong>
<span>1月 01, 2016</span>
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1.sed
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<strong>Binbin Xu</strong>
<span>10月 11, 2015</span>
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<p class="article-headline-p"><a href="/2015/08/30/caffe-implement-l2-normlization-layer/">Implement L2 Normalization Layer in Caffe</a></p>
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转载请注明！！！
Sometimes we want to implement new layers in Caffe for specific model. While for me, I need to Implement a L2 Normalization Layer. The benefit of applying L2 Normalization to the data is obvious. The author of Caffe has already wrote methods to add new layers in Caffe in the Wiki. This is the Link
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<span>8月 30, 2015</span>
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