-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathindex.html
More file actions
203 lines (109 loc) · 5.49 KB
/
index.html
File metadata and controls
203 lines (109 loc) · 5.49 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>乔伊橙C的部落格</title>
<meta name="author" content="JoeyChan">
<meta name="description" content="在数据分析和数据挖掘的过程中，我们经常需要知道个体间差异的大小，进而评价个体的相似性和类别。最常见的是数据分析中的相关分析，数据挖掘中的分类和聚类算法，如K最近邻（KNN）和K均值（K-Means）。当然衡量个体差异的方法有很多，最近查阅了相关的资料，这里整理罗列下。 为了方便下面的解释和举例， …">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link href="/atom.xml" rel="alternate" title="乔伊橙C的部落格" type="application/atom+xml">
<link rel="canonical" href="">
<link href="/favicon.png" rel="shortcut icon">
<link href="/stylesheets/screen.css" media="screen, projection" rel="stylesheet" type="text/css">
<!--[if lt IE 9]><script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
<script async="true" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
</head>
<body>
<header id="header" class="inner"><h1><a href="/">乔伊橙C的部落格</a></h1>
<nav id="main-nav"><ul class="main">
<li><a href="/">Blog</a></li>
<li><a href="/blog/archives">Archives</a></li>
<li><a href="/about">About</a></li>
</ul>
</nav>
<nav id="mobile-nav">
<div class="alignleft menu">
<a class="button">Menu</a>
<div class="container"><ul class="main">
<li><a href="/">Blog</a></li>
<li><a href="/blog/archives">Archives</a></li>
<li><a href="/about">About</a></li>
</ul>
</div>
</div>
<div class="alignright search">
<a class="button"></a>
<div class="container">
<form action="http://www.google.com.hk/search" method="get">
<input type="text" name="q" results="0">
<input type="hidden" name="q" value="site:iiapache.github.io">
</form>
</div>
</div>
</nav>
<nav id="sub-nav" class="alignright">
<div class="social">
<a class="facebook" href="http://www.facebook.com/VCJoeyChan" title="Facebook">Facebook</a>
<a class="google" href="https://plus.google.com/104958554040810763742?rel=author" title="Google+">Google+</a>
<a class="twitter" href="http://twitter.com/JoeyChan17" title="Twitter">Twitter</a>
<a class="rss" href="/atom.xml" title="RSS">RSS</a>
</div>
<form class="search" action="http://www.google.com.hk/search" method="get">
<input class="alignright" type="text" name="q" results="0">
<input type="hidden" name="q" value="site:iiapache.github.io">
</form>
</nav>
</header>
<div id="content" class="inner">
<article class="post">
<h2 class="title">
<a href="/blog/2013/11/12/distance-and-similarity/">
距离和相似度</a>
</h2>
<div class="entry-content">
<p>在数据分析和数据挖掘的过程中，我们经常需要知道个体间差异的大小，进而评价个体的相似性和类别。最常见的是数据分析中的相关分析，数据挖掘中的分类和聚类算法，如K最近邻（KNN）和K均值（K-Means）。当然衡量个体差异的方法有很多，最近查阅了相关的资料，这里整理罗列下。</p>
<p>为了方便下面的解释和举例，先设定我们要比较X个体和Y个体间的差异，它们都包含了N个维的特征，即X=（x1， x2， x3， … xn），Y=（y1， y2， y3， … yn）。下面来看看主要可以用哪些方法来衡量两者的差异，主要分为距离度量和相似度度量。</p>
<a href="/blog/2013/11/12/distance-and-similarity/" class="more-link">阅读全文→</a>
</div>
<div class="meta">
<div class="date">
<time datetime="2013-11-12T22:41:00+08:00" pubdate data-updated="true">Nov 12<span>th</span>, 2013</time></div>
<div class="tags">
<a class='category' href='/blog/categories/ji-qi-xue-xi/'>机器学习</a>
</div>
<div class="comments"><a href="/blog/2013/11/12/distance-and-similarity/#comments">Comments</a></div>
</div>
</article>
<article class="post">
<h2 class="title">
<a href="/blog/2013/10/24/hello-world/">
Hello World</a>
</h2>
<div class="entry-content">
<p>Hello,my friends.I am <strong>JoeyChan</strong>,</p>
<p>This is my blog on Github. Welcome to here. Glad to be your friend!</p>
</div>
<div class="meta">
<div class="date">
<time datetime="2013-10-24T23:02:00+08:00" pubdate data-updated="true">Oct 24<span>th</span>, 2013</time></div>
<div class="tags">
<a class='category' href='/blog/categories/life/'>Life</a>
</div>
<div class="comments"><a href="/blog/2013/10/24/hello-world/#comments">Comments</a></div>
</div>
</article>
<nav id="pagenavi">
<div class="center"><a href="/blog/archives">Blog Archives</a></div>
</nav></div>
<footer id="footer" class="inner">Copyright © 2013
JoeyChan
<script type="text/javascript">var cnzz_protocol = (("https:" == document.location.protocol) ? " https://" : " http://");document.write(unescape("%3Cspan id='cnzz_stat_icon_1000166806'%3E%3C/span%3E%3Cscript src='" + cnzz_protocol + "s22.cnzz.com/z_stat.php%3Fid%3D1000166806%26show%3Dpic' type='text/javascript'%3E%3C/script%3E"));</script></footer>
<script src="/javascripts/slash.js"></script>
<script src="/javascripts/jquery.fancybox.pack.js"></script>
<script type="text/javascript">
(function($){
$('.fancybox').fancybox();
})(jQuery);
</script> <!-- Delete or comment this line to disable Fancybox -->
</body>
</html>