为了定量衡量流形学习算法的降维效果, 通常 采用剩余方差 (Residual Variance) [ 1 ] 作为算法性能 的评价指标, 其定义如下: R = 1 - [ corrcoef (D G , D Y ) ] 2 , ( 2) 其中, D G 是所有点对之间的最短路径...
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对改进算法中二次滤波的噪声方差参数选取采取一种计算反卷积剩余误差的方法，用在第二次滤波步骤中。
The paper also gives an algorithm for estimating the variance of the imaging noises by computing residual deconvolution errors, which is used in the second step of the modified Wiener filter.
拟合与时间相关的QTL基因型的期望均值向量和剩余误差的协方差矩阵是动态性状功能定位的核心内容。
Modeling time-dependent expected mean vectors of QTL genotypes and the structure of the within-subject residual covariance matrix are the essence for functional mapping QTL of dynamic traits.
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