/** Tween.js* t: current time(当前时间)* b: beginning value(初始值)* c: change in value(变化量)* d: duration(持续时间)*/var Tween = { Linear: function(t, b, c, d...
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其他好文 时间:
2014-06-28 21:03:41
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160
Given an array of integers, every element appears three times except for one. Find that single one.Note:Your algorithm should have a linear runtime co...
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其他好文 时间:
2014-06-28 13:44:09
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188
【题目】
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?
【题意】
给定一个整数数组,其中除了一个数以外,其他数都是成对出现的,...
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其他好文 时间:
2014-06-26 10:13:27
阅读次数:
254
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using e...
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其他好文 时间:
2014-06-24 23:30:08
阅读次数:
278
线性回归(Linear Regression)问题属于监督学习(Supervised Learning)范畴,又称分类(Classification)或归纳学习(Inductive Learning);这类分析中训练数据集中给出的数据类标是确定的;机器学习的目标是,对于给定的一个训练数据集,通过不断的分析和学习产生一个联系属性集合和类标集合的分类函数(Classification Function)或预测函数(Prediction Function),这个函数称为分类模型(Classification Mo...
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其他好文 时间:
2014-06-24 22:58:23
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585
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without u...
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其他好文 时间:
2014-06-24 15:52:58
阅读次数:
222
线性回归(linear regression)实践篇
之前一段时间在coursera看了Andrew ng的机器学习的课程,感觉还不错,算是入门了。这次打算以该课程的作业为主线,对机器学习基本知识做一下总结。小弟才学疏浅,如有错误,敬请指导。
问题原描述:
you will implement linear regression with one
variable to pred...
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其他好文 时间:
2014-06-22 22:53:02
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361
在上一节中使用了一个很重要的概念 — scale (这个不知道翻译成什么,暂且叫它比例)。本节将重点介绍它的相关使用方法。...
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Web程序 时间:
2014-06-21 22:30:03
阅读次数:
312
Logistic回归是一种非常高效的分类器。它不仅可以预测样本的类别,还可以计算出分类的概率信息。不妨设有$n$个训练样本$\{x_1, ..., x_n\}$,$x_i$是$d$维向量,其类别标签是$\{y_1, ..., y_n\}$。对于一个$c$类问题,$y_i \in \{1, 2, .....
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其他好文 时间:
2014-06-21 16:04:13
阅读次数:
177
Given an array of integers, every element appears twice except for one. Find that single one.Note:Your algorithm should have a linear runtime complexi...
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其他好文 时间:
2014-06-20 23:34:47
阅读次数:
308