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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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quxiankeyi1
矢量控制 永磁同步电机 mtpa 最大转矩电流比控制 最大转矩电流比控制最大转矩电流比控制最大转矩电流比控制(mtpa flnas fsdfdfsono dfispdo fsidfjps dsfjspdo dfjps fdfpd fdf d f df s df s fs okddsf sdg sd fsdlfkds dvpdfmps sdmfsd vdkms dfvdv sl)
- 2018-03-12 16:11:04下载
- 积分:1
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stirling
一个二阶中心插值滤波器(DDF2)的目标跟踪仿真实例。(a second center interpolation filter (DDF2) target tracking simulation example.)
- 2007-05-25 22:08:57下载
- 积分:1
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cs-for-array-signal-processing
介绍压缩采样新技术的优点,将其应用于阵列信号的处理中(Describes the advantages of sampling new compression technologies, the treatment applied to the array signals)
- 2015-03-24 17:08:52下载
- 积分:1
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Desktop
1.同时对多个光谱数据进行一阶导数计算,并保存在元胞数组中。2.对光谱数据进行取均值,每三个列为一组。(At the same time, the first derivative of multi-spectral data is calculated and stored in the cell array.The spectral data are averaged and divided into three groups.)
- 2019-07-05 18:43:28下载
- 积分:1
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Writing_Skills_Success_in_20_Minutes_a_Day
This english book is really helpful to prepare in ielt test or write english essay
- 2010-11-30 07:06:11下载
- 积分:1
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FDTD_2D_Yee_2D_TM_final
说明: FDTD,计算二维光子晶体,能量变化,速度非常快(FDTD, calculated two-dimensional photonic crystal, the energy changes very fast)
- 2008-10-12 11:33:28下载
- 积分:1
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css
CCS下文件读写操作完整详细解读提供经典实例(CCS read and write the file to provide a complete detailed explanation of the classic examples)
- 2011-04-27 11:13:08下载
- 积分:1
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Weighted-ELM-Codes-for-Binary-Problems
Weighted ELM for imbalanced datasets - Weighted-ELM
W. Zong, G.-B. Huang, and Y. Chen, “Weighted extreme learning machine for imbalance learning,” Neurocomputing, vol. 101, pp. 229-242, 2013.
- 2013-10-28 11:36:56下载
- 积分:1
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CS_DOA
本程序利用matlab实现利用压缩感知进行波达方向估计(This procedure using matlab to achieve the use of compressed sensing for DOA estimated)
- 2021-05-08 09:10:35下载
- 积分:1