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@polynomial
VC维理论和结构风险最小化准则是统计学习理论中的重要内容,基于这一理论的支持向量机算法由于具有好的泛化性能受到重视,并被研究用于文本分类问题.基于多项式核的研究工作认为SVM的泛化能力不受多项式阶数的影响,并且能够处理很高维的分类问题,用于文本分类无需进行特征选择.研究发现,随着多项式核阶数的升高,SVM文本分类器会出现过学习现象,并且特征数越多越明显,特征选择是必需的.通过估计函数集的VC维,基于结构风险最小化理论对此问题进行分析,得出的结论跟实验结果相符.
(err)
- 2008-01-08 21:41:08下载
- 积分:1
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occupy
occupancy sensing 的一些代码
主程序 实现人和sensor的序列输出(codes of occupancy sensing)
- 2013-04-22 10:36:33下载
- 积分:1
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passive-filter_impedance
Calculation the impedance of Passive Power Filter
- 2011-12-17 00:51:32下载
- 积分:1
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2016D
说明: 数学建模国赛2016年D题,风电场运行状况分析及优化(Mathematical Modeling National Competition 2016 D Question)
- 2020-06-15 23:20:01下载
- 积分:1
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1585_Modul4
matlab tutorial free
- 2013-09-09 18:17:52下载
- 积分:1
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PLS
PLS算法的matlab程序实现,只要将txt中的代码复制到matlab即可-PLS (algorithm matlab program, simply txt the code can be copied to matlab)
- 2013-09-02 16:54:22下载
- 积分:1
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Program
微分方程(这里指的是常微分方程)指含有一次、二次、乃至高次微分未知数的方程。是解决偏微分方程、数理方程的基础。有许多特殊函数,都是为了无法得出多项函数或超越函数型式的解析解的微分方程而定义出来。这些特殊函数之所以重要,是因为它们描述了自然界中的某些现象,例如,电子的活动、鼓皮的振动、钟摆的摆动等等。(Differential equations (in this case is the ordinary differential equation) means containing one, two, and even high-differential equations unknowns. Is to solve the partial differential equations, mathematical equations based. There are many special functions, are not drawn to a number of functions or functions beyond the type of analytical solution of differential equations which define them. These special functions are important because they describe the nature of certain phenomena, for example, electronic activities, drum skin vibrations, pendulum swing, and so on)
- 2012-01-04 11:58:05下载
- 积分:1
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jiaxingbaizaosheng
加性白噪声的计算机实现,我们学校老师自己编的实验指导(Additive white noise machine to achieve the guidance of our school teachers have compiled experimental)
- 2013-03-02 14:58:07下载
- 积分:1
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Yan_Yi_OOK
仿真OOK载波调制信号在AWGN信道下的误码率和误比特率性能,并与理论值相比较。
OOK是ASK调制的一个特例,把一个幅度取为0,另一个幅度为非0,就是OOK。(OOK modulation signal simulation in AWGN channel bit error rate and bit error rate performance, and compared with the theoretical value. OOK is a special case of ASK modulation to an amplitude taken as 0, and the other non-zero amplitude is OOK.)
- 2014-11-05 15:45:01下载
- 积分:1
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backeuler
后向欧拉方法求解微分方程的初值问题,运用牛顿迭代解决implicit(backward euler solver for ODE)
- 2012-03-29 16:32:35下载
- 积分:1