摘要: 对于multiple features 的问题(设有n个feature),hypothesis 应该改写成 $$ \mathit{h} _{\theta}(x) = \theta_{0} + \theta_{1}\cdot x_{1}+\theta_{2}\cdot x_{2}+\theta_{3} 阅读全文
posted @ 2018-12-30 14:42 Khunkin 阅读(286) 评论(0) 推荐(0)
摘要: PATTERN系列之五 I. Introduction To ease the expression of real time requirements, Dwyer, and then Konrad, studied a large collection of existing systems i 阅读全文
posted @ 2018-12-29 16:26 Khunkin 阅读(389) 评论(0) 推荐(0)
摘要: PATTERN系列的番外篇 对non Zeno的概念进行了明晰 accepting :if infinitely often the same state non Zeno :if time diverges,which means $\sum_{i\geq20}$$\delta_{i}$ $\ri 阅读全文
posted @ 2018-12-29 14:51 Khunkin 阅读(185) 评论(0) 推荐(0)
摘要: 全排列 //这篇题解是我第一篇题解,很久以前写的,就作为我blog的第一篇文章吧 思路 递归。 N个数的全排列数,观察3个数的全排列数: 1 2 3 1 3 2 2 1 3 2 3 1 3 1 2 3 2 1 可以看到第一个分别是1 2 3,而各自后面所跟着的,恰恰是剩下的数的全排列,以1为例,后面 阅读全文
posted @ 2018-12-29 13:52 Khunkin 阅读(161) 评论(0) 推荐(0)