查询词典 global convergence

For the original infinite dimensional problem, if the inexact quasi-newton method with Broyden updating can not converge quickly , for example, it can not attain super linear convergence rate , then when the discretization is becoming finer and finer , we can not get fast convergence rate for the corresponding finite dimensional problem.

对于原来的无限维问题，如果使用不精确Broyden方法不能得到较快的收敛速度，比如超线性收敛性，那么当离散化逐渐加细的时候，对于所得的有限维问题使用不精确Broyden方法也不可能得到较快的收敛速度，所以有必要在无穷维空间上对收敛性问题加以分析，从而为不精确拟牛顿法结合投影法求解算子方程做好准备。

In view of convergence of iterative arithmetic, the arithmetic of selfadjusting the linear search directions during iteration was put forward based on practice, which guaranteed fast convergence and robustness of the system.

5对于Newton-Rapson迭代过程，根据实践，提出自动控制和调节收敛因子的算法，使系统具有较高的收敛性和计算稳定性。

We prove general convergence and local convergence of this algorithm.

第四章证明了对偶算法的全局收敛性和局部收敛速率。

This paper analyze fiscal policy convergence of 30 local government in china from 1997 to 2005,by extending the traditional convergence model to allow for spatial correlation.

在传统的收敛模型中加入空间因素，分析了我国1997-2005年30个省的财政政策收敛情况。

In order to avoid slow-convergence and local convergence of simple genetic algorithm for intelligent test paper generation, a kind of improved genetic algorithm has been proposed in this paper.

在智能组卷中，为了避免简单遗传算法收敛速度慢及局部收敛的问题，引入了一种改进遗传算法。

The variational convergence of real function sequence is extended to vector function sequence and the lower semicontinuity of approximating set of weak Pareto solutions of a given multiobjective decision making problem with general constraint set is obtained by using the variational convergence.

本文将函数序列的v－收敛性推广到向量值函数，在v－收敛性的条件下得到了给定的多目标决策问题的近似弱有效解集的下半连续性并给出了若干容易验证的充分条件。

Secondly, this paper argues the convergence of Genetic Algorithms and introduces the analyzing convergence by Markov chain.

在此基础上，利用信息凝聚的观点对算法收敛性加以分析。最后，考察了遗传算法的有效性。

Using this inequality one can prove that the mean convergence of positive martingale implies its point wise convergence.

在这一极大不等式的基础上可以证明正值鞅的均收敛蕴涵了它的点收敛。

According to the definition of matrix power series and the convergence property of the power series, using the type compare method, the thesis got and verified part convergence properties of the matrix power series.

摘要根据矩阵幂级数的定义和数学分析中幂级数的收敛性质，运用类比的推理法，得到并验证了矩阵幂级数的部分相应的收敛性质。

Li Xiangru found an error in Comuniciu's proof of Mean Shift convergence, and gave an indirect condition for its convergence.

李乡儒指出了Comuniciu关于算法收敛性证明中的错误，并给出了一个算法收敛的间接条件。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。