矩阵的矩阵

In particular, a multivariate t distribution is attained to characterize the prediction information corresponding to HMM mean vector and precision matrix.

在实作上我们采用一个多变量的t 分布来代表所选出隐藏式马可夫模型所对应平均向量及预测矩阵的预估资讯之特性。

MethodsBased on the structure of gene frequency matrix, we combine the method of multidimensional scaling analysis with the minimal spanning tree of graph theory, to set up the model of graph theory multidimensional scaling analysis.

提出基因频率矩阵的图论多维尺度分析方法，探讨该法在人类群体遗传结构研究中的应用。

A simple entanglement measure for multipartite pure states is formulated based on the von Neumann entropy of a series of reduced density matrices.

本文推广了两态两体纯态系统的纠缠度量方法，即利用约化密度矩阵的von Neu-mann熵来度量纯态纠缠。

This paper first presents the definition of nilpotent matrix and then moves on to discuss certain properties of them.

本文先给出幂零矩阵的定义，然后讨论了它的若干性质。

Space-Time Adaptive Processing is a key technology for moving target detection, but nonhomogeneity will cause the covariance matrix estimation error, which substantially results in the STAP performance degradation.

摘要空时自适应处理作为动目标检测的关键技术，但是非均匀环境将会造成协方差矩阵的估计误差，进而严重影响STAP性能。

The upper bound of the differential probability is developed for the completely nonsingular matrix based substitution permutation network....

给出了基于全非奇异矩阵的代替置换网络的差分概率上界。

The result shows that this algorithm not only has good numerical stability, but also can avoid iteration and solution of the Jacobi matrix.

结果表明，该算法不仅具有较高的数值稳定性，而且避免了迭代运算或Jacobi矩阵的求解。

A very important problem of applying this method is how to estimate one-step state transition probability matrix.

在马尔可夫预测方法[1]167中，一个非常重要的问题就是对一步状态转移概率矩阵的估算。

According the characters of the orthogonal matrix after SVD,an adaptive image watermarking scheme is given by taking full advantage of Hilbert scanning.

利用了SVD的单向非对称性和正交矩阵的性质，给出了一种自适应水印方案。

In this paper,an improvement is made through selecting a group of normal orthogonal vectors in feature subspace,to generate large amount of virtual training samples.

在模式特征子空间中选取一组标准正交向量，使用这组向量可以生成大量的虚拟训练样本，从而实现对协方差矩阵的优化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。