共查询到10条相似文献,搜索用时 359 毫秒
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基于核独立成分分析的人脸识别 总被引:1,自引:0,他引:1
研究一种基于核独立成分分析的人脸识别方法。利用支持向量机的核函数思想,将原始人脸图像向量映射到高维特征空间,然后在高维特征空间中进行独立成分分析(ICA),提取非线性独立成分作为特征向量进行分类识别。实验结果表明该方法要比常规的基于ICA和PCA的人脸识别算法的识别率要高。 相似文献
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James F. Woodward 《Foundations of Physics Letters》1996,9(1):1-23
Theoretical consequences of the gravitational origin of inertial reaction forces, that is, Mach's principle, are explored. It is argued that Mach's principle leads to the conclusion that time, as we normally treat it in our common experience and physical theory, is not a part of fundamental reality; the past and future have a real, objective existence, as is already suggested by both special and general relativity theory. A laboratory scale experiment whereby Mach's principle, and thus radical timeless ness, can be established is mentioned. 相似文献
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Asymptotic Behavior of Soliton Solutions with a Double Spectral Parameter for Principal Chiral Field
SONG Quan-Fu ZHOU Zi-Xiang 《理论物理通讯》2005,44(6):977-980
The soliton solutions with a double spectral parameter for the principal chiral field are derived by Darboux transformation. The asymptotic behavior of the solutions as time tends to infinity is obtained and the speeds of the peaks in the asymptotic solutions are not constants. 相似文献
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Asymptotic Behavior of Soliton Solutions with a Double Spectral Parameter for Principal Chiral Field
SONG Quan-Fu ZHOU Zi-Xiang 《理论物理通讯》2005,44(12)
The soliton solutions with a double spectral parameter for the principal chiral field are derived by Darboux transformation. The asymptotic behavior of the solutions as time tends to infinity is obtained and the speeds of the peaks in the asymptotic solutions are not constants. 相似文献
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PCA、KPCA作为常用的多变量统计监控算法,一般适用于定常过程。针对实际工业过程的时变、非线性特性,提出一种基于分块的改进KPCA算法。该方法通过采用随时间更新的核矩阵代替固定核矩阵用于主元模型的建立,使非线性监控模型能够在线更新,从而提高KPCA的检测正确率。与KPCA方法相比,该方法的运算复杂度明显降低。将该方法应用于TE(Tennessee Eastman)过程,仿真结果显示,该方法具有较好的监测性能,且所需时间大大减小,说明了本算法的有效性。 相似文献
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