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?统计学习精要(The Elements of Statistical Learning)?课堂笔记(二)
继续一周一次的课堂笔记 :D 昨天去晚了站着听讲,感觉好好啊,注意各种集中。想想整个教室里面就是我和老师是站着的,自豪感油然而生。 第二次课讲的东西依旧比较简单,是这本书第二章的前半部分。作为一个好久之前已经预习过的孩子,我表示万分的得意(最小二乘法难道不是三四年前就学过的?话说以后我再面人的时候,就让他推导最小二乘估计量,嘻嘻...考验一下基本功)。 ------------原谅我的...
分类:其他好文   时间:2014-06-30 10:00:55    阅读次数:185
Java的结构之美【2】——销毁对象
先来看一段代码:import java.util.Arrays; import java.util.EmptyStackException; /** * 2014年6月28日09:31:59 * @author 阳光小强 * */ public class Stack { private Object[] elements; private int size = 0; privat...
分类:编程语言   时间:2014-06-30 08:45:00    阅读次数:220
?统计学习精要(The Elements of Statistical Learning)?课堂笔记(一)
前两天微博上转出来的,复旦计算机学院的吴立德吴老师在开?统计学习精要(The Elements of Statistical Learning)?这门课,还在张江...大牛的课怎能错过,果断请假去蹭课...为了减轻心理压力,还拉了一帮同事一起去听,eBay浩浩荡荡的十几人杀过去好不壮观!总感觉我们的人有超过复旦本身学生的阵势,五六十人的教室坐的满满当当,壮观啊。 这本书正好前阵子一直在看,所...
分类:其他好文   时间:2014-06-29 23:58:22    阅读次数:321
?统计学习精要(The Elements of Statistical Learning)?课堂笔记(三)
照例文章第一段跑题,先附上个段子(转载的哦~): I hate CS people. They don't know linear algebra but want to teach projective geometry. They don't know any probability but want to use graphical models. They don't under...
分类:其他好文   时间:2014-06-29 22:35:13    阅读次数:358
MVVM's Nature and Advantage over MVC
In MVC, "C"(controller) musthard referecesa variable's name of UI elements from View. Therefore, changes in View will domino "C" code changes.In MVVM,...
分类:Web程序   时间:2014-06-28 10:06:39    阅读次数:194
[leetcode] 3Sum
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of ...
分类:其他好文   时间:2014-06-27 12:27:28    阅读次数:169
[leetcode] 4Sum
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array whic...
分类:其他好文   时间:2014-06-27 12:13:18    阅读次数:207
[leetcode] Spiral Matrix
Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.
分类:其他好文   时间:2014-06-27 11:51:13    阅读次数:193
[leetcode] Spiral Matrix II
Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order.
分类:其他好文   时间:2014-06-27 11:40:49    阅读次数:156
Leetcode Spiral Matrix II
Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should return the following matri...
分类:其他好文   时间:2014-06-26 15:55:21    阅读次数:200
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