查询词典 definite

By the proposed fuzzy adaptive robust: controller there is no need to find a comrnon positive definite matrix satisfying matrix Lyapunov equation.

整个控制方案在结合所有的局部线性状态反馈控制器的基础上，引入了基于自适应神经网络的鲁棒控制器。

Compared with former stability analysis approaches, this approach can not only overcome the defect of finding a common positive definite matrix but also reduce the number of solving Lyapunov inequalities largely.

较之以往稳定性判定方法，此方法不仅克服了需要寻找一个公共矩阵的不足，而且也减少了求解Lyapunov不等式的个数。

But also extend and improve the recent literature on the lower bound estimate of the determinant modulo about the Hadamard product of the complex generalized positive definite matrix.

而且也推广和改进了最近有关复广义正定矩阵的Hadamard乘积的行列式的模的下界估计文献。

Finally, when the decomposition is proceeding to a symmetric positive definite matrix, the pivot may be very small or even negative.

除预条件外，尚有许多其它的预处理技术将原矩阵化为性质较好矩阵，预对称化即是其中之一。

Based on the rules and the facts that covariance matrix is positive definite symmetric matrix, new split-and-merge methods are proposed and the improvements for the SMEM algorithm are designed.

最后在Ueda等人的利用分离合并过程来改善EM算法的思想启发下，具体从用于高斯混合体模型的EM算法出发，得到了一类新的分离合并EM算法，同Ueda等的比较，后者的分离合并方法是一种启发性的过程，前者则是在一定理论指导下的推出的。

Positive definite matrix ; \ inverse matrix ; \ Schur complement of matrix

正定矩阵；逆矩阵；矩阵的Schur补

Lastly,two sorts of splitting of definite positive matrix areformed,one of which is combined with U-transformation to put forward aniteration process for the sort of periodic structures.

构造了正定矩阵的两种分解格式，由此对于一类周期结构提出了一种酉变换迭代算法。

Based on quadratic PEk method, quadratic EPEk method is advanced and itsconvergences are discussed by the conditions of the symmetric positive definite and thepositive-definable Matrix.

基于二次PE_k方法的基础之上，文章提出了二次PE_k方法的外推迭代一二次EPE_k方法，并讨论了其在对称正定和可正定化条件下的收敛性。

Based on the relationship between matrix and symmetric matrix global exponential stability of the discrete-time neural networks model and the result of exponential convergence rate were obtained by using the characteristics of eigenvalues of a positive definite matrix and introducing a proper factor.

针对带有边界约束的凸二次规划问题，利用离散神经网络模型的建模原理，构造了一个神经网络模型。利用矩阵与对称矩阵的关系和正定矩阵特征值的性质，通过引入一个适当的因子，得到了该离散型神经网络模型是全局指数稳定性和指数收敛率的结果。同时分析了该结果的优越性和存在的不足，提出了解决的3种方法，最后给出了实例说明本方法取得结果的实用性

If A is a symmetric positive definite matrix, then the quadratic form x~ TAx can be written as a sum of squares. Equivalently, A is a sum of rank one matrices VV~T.

若A是对称正定矩阵，则二次型x~ TAx 能写成平方项的和，即A是秩为1的矩阵VV~T的和。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。