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stanford-cs-229's Issues

Hello, I may have found some mistakes.

  1. 第七部分贝叶斯统计公式一有错分子多了一个p(theta)

  2. 同样第七部分:“因此在实际应用中,我们都是用一个与 \thetaθ 的后验分布 (posterior distribution)近似的分布来替代。常用的一个近似是把对 \thetaθ 的后验分布(正如等式(2) 中所示)”
    应该是正如等式(1)中所示

网页上的目录显示有些问题

两个问题如下:

  • 强化学习(Reinforcement Learning)和控制(Control)在原文中是第十三部分,不好意思,我第一次提交Markdown的时候写错了,现在网页上的目录显示有些问题
  • 线性二次调节,微分动态规划,线性二次高斯分布是第十四部分

我推测是网页的目录在summary.md里面改,但是不确定,就把问题放在这里提出,等@wizardforcel 如果看到帮忙修改下,谢谢~

请问Section Notes里面的凸优化有人翻译么?没有的话我想接手翻译~

Motivation:

  • 凸优化是机器学习中优化问题的基础
  • 其他几个Section notes(比如线性代数概率论)大部分理工科生本科都作为专业课学过,而以凸优化作为专业课的专业相对较少,所以学习翻译凸优化的内容很有必要(优先级较高)。
  • 原版凸优化内容较多,阅读很费劲,section notes(凸优化1以及凸优化2)中抽出机器学习中需要的部分,内容比较少,利于快速学习入门

pdf版本

感谢楼主的辛苦翻译,方便了我这种英语渣的学习。我发现md、docx文件都存在瑕疵,pdf文件是最完美的,打印下来看着很舒服。麻烦楼主有空将note2以后的pdf版本补上。再次感谢!

note2中出现的错误

cs229-notes2.docx这个文档的第12页最后一行。
原文写的是φj|y=1 is正是垃圾邮件中单词 j 出现的邮件中垃圾邮件所占(y = 1)的比例。
是不是应该改成φj|y=1 是垃圾邮件中单词 j所占的比例。

公式显示错误

image

今天突然发现chrome和safari上公式的都成了原始的mrkdown语法,辛苦看下是不是网站的某个插件失效了~

支持向量部分细节错误

https://github.com/Kivy-CN/Stanford-CS-229-CN/blob/master/Markdown/cs229-notes3.md#5-%E6%8B%89%E6%A0%BC%E6%9C%97%E6%97%A5%E5%AF%B9%E5%81%B6%E6%80%A7lagrange-duality

翻译

这个等式暗示,当$\alpha_i^\ast \geq 0$ 的时候

原文

Specifically, it implies that if α∗i > 0,


https://github.com/Kivy-CN/Stanford-CS-229-CN/blob/master/Markdown/cs229-notes3.md#6-%E6%9C%80%E4%BC%98%E8%BE%B9%E7%95%8C%E5%88%86%E7%B1%BB%E5%99%A8optimal-margin-classifiers-

翻译

另外,之前我们就已经发现所有支持向量(support vectors)的 \alpha_iα i的值都是 0。

原文

. Moreover, we saw earlier that the αi’s will all be zero except for the support vectors.

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