逼近地

In this paper a few popular computation methods of matrix exponential are reviewed systematically and evaluated in detaA and some problems which need our thorough research are put forward.

本文系统地阐述了目前流行的几种主要逼近算法，对这些算法进行了详细的评估，并提出了一些有待深入研究的问题。

The infinite-dimensional inference technique was available to precisely approximate the posterior distribution of the noise.

提出一新的非参数贝叶斯推理算法来辨识任意复杂的多模噪声分布，采用无穷维推理技术，能够较为精确地逼近噪声的后验分布。

An adaptive learning procedure for constructing and training networks is proposed, based on the adaptive projective algorithm.

进一步地研究了径向基函数网络的逼近性能、径向基函数中心的选择及构造和训练网络的学习算法。

Anakin advances, following parry with riposte, before delivering a hefty boot to his opponent's face.

阿纳金逼近过来，接着机敏地躲避，但先朝他对手的脸上踢出了重重的一脚。

My friends in the room stood up too, and moved towards Ruthven angrily.But he had a knife in his hand.

我房间里的朋友们也站了起来，愤怒地向鲁斯温逼近，但是鲁斯温手里拿着刀。

1Because some conditions can not be fulfilled,one can not applythe known results in stochastic approximation directly.

1由于有些条件不能满足，现有的随机逼近结果无法直接利用，我们巧妙地克服了这一困难，在较弱的条件(文中H.4.1—H.4.3)下，给出了这类算法的严格收敛性分析(定理4.3.2，定理4.3.3)。

In each period, without the knowledge of the distribution function of the time between failures and the repair time, the PA estimate of gradient of performance function is put into the stochastic approximation algorithm which recursively optimize the threshold value of the flow control model in a manufacturing system.

在分析过程中，对故障时间和工作时间的分布不做任何假设，利用自适应控制的思想，将整个样本路径依据一定的规则分成有限长的时间段，在每一段时间内用扰动分析估计目标函数的样本导数，然后用随机逼近算法渐进地估计流程控制问题中的最优阈值，从而实现了阈值的自适应控制。

Move carefully until you get within striking distance of the enemy, then hold your fire till I give the order.

小心地逼近敌人直到可以发动进攻的距离，然后等待我的命令开火。

The iterative detect and decoding algorithm is a suboptimum joint receiver, can achieve the good trade off between the performance and complexity, and closing the Shannon limit performace.

次最优的迭代检测译码算法在性能和复杂度上可以取得折衷，并有效地逼近系统容量性能。

By testing χ2 and F distribution of data, it was proved that the method had a better approach to theoretical distribution curve than above two methods.

经对 χ2 分布和 F 分布的检验表明，该方法能较好地逼近理论分布曲线。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。