We propose a method for proving two matrix identities, which are often used in statistical analysis, based on knowledge of conditional posterior density.
提出了用求条件后验密度的方法证明统计分析中的两个矩阵等式的方法。
2
To overcome dimension curse of conditional probability matrix, casual rules in databases is converted to linear polynomial, which makes calculation simple.
为克服数据库因果关系条件概率矩阵维数灾，将因果关系转化为线性多项式，可使计算简便。
3
By using the variation dynamic admittance algorithm of the load power, the ill-conditional number problem of the node admittance matrix is solved.