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Description: 分类知识的获取是数据挖掘要实现的重要任务之一，其核心问题是解决分类模型的构造和分类算法实现。本文以决策树分类方法中有代表性的方法C4．5为例，介绍数据挖掘中一种分类方法一决策树分类方法及其构建和应用研究。
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Size: 177569 |
Author: 梁旭 |
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Description: MSN机器人开发接口117143167net-sdk-1.5.0.zip
飞龙 QQ 316118740
人机智能对话文章 http://hi.baidu.com/alalmn/blog/category/ C8 CB BB FA D6 C7 C4 DC B6 D4 BB B0
-MSN Robot Development Interface 117143167net-sdk-1.5.0.zip intelligent man-machine dialogue dragon QQ 316118740 article http://hi.baidu.com/alalmn/blog/category/ C8 CB BB FA D6 C7 C4 DC B6 D4 BB B0
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Size: 183296 |
Author: QQ316118740 |
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Description: matlab透射率随入射角变化的程序
na=2.10 nb=1.46 n1=1 n2=1
d=1064
for c5=0:0.5:90
c3=c5*pi/180
c1=asin(n1*sin(c3)/na) c2=asin(na*sin(c1)/nb) c4=asin(nb*sin(c2)/n2)
d1=1064
a=d1/(4*na) b=d1/(4*nb)
Ba=2*pi*na*a*cos(c1)/d
Bb=2*pi*nb*b*cos(c2)/d
f=4*pi*1e-7
e=1e-9/(36*pi)
-matlab transmittance with the angle of incidence change program na = 2.10 nb = 1.46 n1 = 1 n2 = 1 d = 1064 for c5 = 0:0.5:90 c3 = c5* pi/180 c1 = asin ( n1* sin (c3)/na) c2 = asin (na* sin (c1)/nb) c4 = asin (nb* sin (c2)/n2) d1 = 1064 a = d1/(4* na ) b = d1/(4* nb) Ba = 2* pi* na* a* cos (c1)/d Bb = 2* pi* nb* b* cos (c2)/d f = 4* pi* 1e-7 e = 1e-9/(36* pi)
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Size: 10240 |
Author: 汪 |
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Description: 算术移动平均线是简单而普遍的移动平均线。平均线是指算术平均数，计算方法为一组数字相加，除以该组数据的组成个数，其 中每一给定时限在计算平均值时的权重均相等 。以５天移动平均线为例，公式如下：
MA=(C1+C2+C3+C4+C5)/5
一般公式 :MA=(C1+C2+C3+C4+C5+....+Cn)/n -Simple Moving Average
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Size: 5120 |
Author: gaiwei |
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Description: 1、【拷贝构造函数】定义一个复数类CComplex
class CComplex {
private:
float real //实部
float imag //虚部
public:
CComplex(float x =0.0 , float y = 0.0):real(x),imag(y) {}
CComplex(CComplex& c)
CComplex operator+(CComplex& c)
CComplex operator-(CComplex& c)
void print() const { cout << real << " + " << imag << "i" << endl
}
void main() {
CComplex c1(3, 5), c2(4, 7)
CComplex c3 = c1 + c2
CComplex c4 = c2 - c1
c4.print()
c3.print()
}
请完善CComplex的拷贝构造函数、运算符重载+和-，使其完成指定功能。
2、【继承】正方形为矩形的一个特例，请定义正方形类(CSquare)和矩形类(CRectangle)，将正方形类定义为矩形类的派生类。
（1）矩形具有计算周长、面积的成员函数；
（2）正方形作为子类还具有计算内切圆的周长和面积的成员函数； -1, [] define a copy constructor complex class CComplex
class CComplex {
private:
float real // real part
float imag // imaginary part
public:
CComplex (float x = 0.0, float y = 0.0): real (x), imag (y) {}
CComplex (CComplex & c)
CComplex operator+ (CComplex & c)
CComplex operator-(CComplex & c)
void print () const {cout << real << "+" << imag << "i" << endl
}
void main () {
CComplex c1 (3, 5), c2 (4, 7)
CComplex c3 = c1+ c2
CComplex c4 = c2- c1
c4.print ()
c3.print ()
}
Please improve the copy constructor CComplex of operator overloading+ and- to complete the assigned functions.
2, [inheritance] square is a special case of a rectangle, define a square class (CSquare) and rectangular class (CRectangle), defined as the square class derived class rectangle class.
(1) having a rectangular perimeter calculation, the area of member functions
(2) as a sub-class also has
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Size: 1787904 |
Author: 红楼飞雪梦 |
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Description: 数据挖掘经典算法c4.5，id3，决策树等等。(Classical data mining algorithms c4.5, id3, decision tree and so on.)
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Size: 252928 |
Author: kingback |
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Description: apriori、id3、c4.5、fp树等算法的的python实现(Python implementation of apriori, id3, c4.5, FP Tree and other algorithms)
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Size: 49152 |
Author: dadkla |
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