-
Notifications
You must be signed in to change notification settings - Fork 0
/
first-lesson-of-machine-learning.html
203 lines (141 loc) · 8.86 KB
/
first-lesson-of-machine-learning.html
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>
<!-- [[! Document Settings ]] -->
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<!-- [[! Page Meta ]] -->
<title>First Lesson of Machine Learning</title>
<meta name="description" content="与机器，人，神共舞 - 编程，读书，思考，旅行，与机器对话，与人交谈，对神发问，探索，体验人生美丽的风景" />
<meta name="HandheldFriendly" content="True" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="shortcut icon" href="/assets/images/favicon.ico" >
<!-- [[! Styles'n'Scripts ]] -->
<link rel="stylesheet" type="text/css" href="/assets/css/screen.css" />
<link rel="stylesheet" type="text/css"
href="//fonts.googleapis.com/css?family=Merriweather:300,700,700italic,300italic|Open+Sans:700,400" />
<link rel="stylesheet" type="text/css" href="/assets/css/syntax.css" />
<!-- [[! Ghost outputs important style and meta data with this tag ]] -->
<link rel="canonical" href="/" />
<meta name="referrer" content="origin" />
<link rel="next" href="/page2/" />
<meta property="og:site_name" content="与机器，人，神共舞" />
<meta property="og:type" content="website" />
<meta property="og:title" content="与机器，人，神共舞" />
<meta property="og:description" content="编程，读书，思考，旅行，与机器对话，与人交谈，对神发问，探索，体验人生美丽的风景" />
<meta property="og:url" content="/" />
<meta property="og:image" content="/assets/images/cover1.jpg" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="与机器，人，神共舞" />
<meta name="twitter:description" content="编程，读书，思考，旅行，与机器对话，与人交谈，对神发问，探索，体验人生美丽的风景" />
<meta name="twitter:url" content="/" />
<meta name="twitter:image:src" content="/assets/images/cover1.jpg" />
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "Website",
"publisher": "Tao's Page",
"url": "/",
"image": "/assets/images/cover1.jpg",
"description": "编程，读书，思考，旅行，与机器对话，与人交谈，对神发问，探索，体验人生美丽的风景"
}
</script>
<meta name="generator" content="Jekyll 3.0.0" />
<link rel="alternate" type="application/rss+xml" title="与机器，人，神共舞" href="/rss.xml" />
</head>
<body class="home-template nav-closed">
<div class="nav">
<h3 class="nav-title">Menu</h3>
<a href="#" class="nav-close">
<span class="hidden">Close</span>
</a>
<ul>
<li class="nav-home " role="presentation"><a href="/">Home</a></li>
<li class="nav-about " role="presentation"><a href="/about.html">About</a></li>
<li class="nav-fables nav-current" role="presentation"><a href="/tag/machine/">Machine</a></li>
<li class="nav-speeches " role="presentation"><a href="/tag/human/">Human</a></li>
<li class="nav-fiction " role="presentation"><a href="/tag/god/">God</a></li>
<li class="nav-author " role="presentation"><a href="/author/hetao/">Author</a></li>
</ul>
<a class="subscribe-button icon-feed" href="/vocab.html">Apps</a>
</div>
<span class="nav-cover"></span>
<div class="site-wrapper">
<!-- [[! Everything else gets inserted here ]] -->
<!-- default -->
<!-- The comment above "< default" means - insert everything in this file into -->
<!-- the [body] of the default.hbs template, which contains our header/footer. -->
<!-- Everything inside the #post tags pulls data from the post -->
<!-- #post -->
<header class="main-header post-head no-cover">
<nav class="main-nav clearfix">
</nav>
</header>
<main class="content" role="main">
<article class="post tag-machine">
<header class="post-header">
<h1 class="post-title">First Lesson of Machine Learning</h1>
<section class="post-meta">
<!-- <a href='/'>Tao He</a> -->
<time class="post-date" datetime="2020-12-01">01 Dec 2020</time>
<!-- [[tags prefix=" on "]] -->
on
<a href='/tag/machine'>Machine</a>
</section>
</header>
<section class="post-content">
<p>Two months ago, I made a decision for my career: learning machine learning from scratch. Machine learning involves many stuff of math while math is difficult. But I didnot give up in half way this time. Books, Youtube lectures, blogs, I collect learning materials as much as I can and do my best to learning it. 60 days passed, I have had a clarity understanding about some important concepts of Machine learing. In this article, I will figure out these concepts and their relations through 2 figures.</p>
<p><strong>Figure 1</strong></p>
<p>This figure seems simple, but it reveals the relations of some important concepts.</p>
<p><img src="/assets/images/scratch_ml.jpg" /></p>
<p><strong>Figure 2</strong></p>
<p>This figure describes more detail.</p>
<p><img src="/assets/images/machine_learning.png" /></p>
</section>
<footer class="post-footer">
<!-- Everything inside the #author tags pulls data from the author -->
<!-- #author-->
<!-- Add Disqus Comments -->
</footer>
</article>
</main>
<aside class="read-next">
<!-- [[! next_post ]] -->
<a class="read-next-story no-cover" href="/custom-emoji-in-android">
<section class="post">
<h2>在Android中定制Emoji的实现</h2>
<p>最近公司产品在评论输入中要加入定制emoji面板，因此趟了emoji这个浑水，现以此文记录期间踩过的坑和一些心得。要实现一个相对比较完善的emoji输入和显示的功能，需要解决两个主要的问题: 键盘和emoji表情的平滑切换和emoji的正确显示。前者其实和emoji本身不相关，因此放在后面讨论。先来探究定制emoji的实现方案。 我们团队内部想到的最快的实现方案是定制googlefonts的NotoColorEmojiCompat.ttf, 使用EmojiCompact加载定制的ttf文件来显示我们定制的emoji。Google官方提供的NotoColorEmojiCompat的使用方法只有两种，一种方式是将NotoColorEmojiCompat.ttf文件放在assets目录，打入apk中使用，另一种方式是不打入apk，而是通过动态查询ContentProvider去查询获得，好处是不用将ttf文件打入apk包，坏处是查询到的ttf文件还是未定制的NotoColorEmojiCompat.ttf文件，实现不了定制的目的。我们的目标是在不打入这样一个7M的ttf文件的情况下实现定制目的，因此官方提供的这两种使用方式都不可取。因此就只剩下一条路，那就是app启动时下载我们定制的ttf文件，在EmojiCompat初始化时自己实现ttf的load过程，从而实现动态加载定制的emoji表情。 创建一个EmojiHelpler类来管理EmojiCompat的初始化和定制ttf的加载: ``` public class EmojiHelper { private static Context sContext; private...</p>
</section>
</a>
<!-- [[! /next_post ]] -->
<!-- [[! prev_post ]] -->
<a class="read-next-story prev no-cover" href="/review-matrix">
<section class="post">
<h2>Review Matrix</h2>
<p>Linear Algebra is prerequisite for Machine Learning while Matrix is the one of most important...</p>
</section>
</a>
<!-- [[! /prev_post ]] -->
</aside>
<!-- /post -->
<footer class="site-footer clearfix">
<section class="copyright"><a href="/">与机器，人，神共舞</a> © 2024</section>
</footer>
</div>
<!-- [[! Ghost outputs important scripts and data with this tag ]] -->
<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
<!-- [[! The main JavaScript file for Casper ]] -->
<script type="text/javascript" src="/assets/js/jquery.fitvids.js"></script>
<script type="text/javascript" src="/assets/js/index.js"></script>
<!-- Add Google Analytics -->
<!-- Google Analytics Tracking code -->
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-78960009-1', 'auto');
ga('send', 'pageview');
</script>
</body>
</html>