查询词典 iteration

To avoid the prematurity phenomenon of particle swarm optimization, a novel hybrid genetic particle swarm optimization algorithm is proposed. An eliminative mechanism is introduced into the iteration of PSO.

针对粒子群算法容易出现&早熟&的缺点，提出了一种改进的混合遗传粒子群(hybrid genetic particle swarm optimization， HGPSO)算法。

Third, it has a discussion on the development of modern and traditional artificial neural network technology and their application in image processing. It summaries that the model of the Pulse-coupled neural network based on Elkhorn's model of the cat visual cortex was constructed according to the mammalian vision systems. The nonlinear modulation property, which is a generic and pervasive biological pulse-coupling mechanism, is used in the construction of PCNN. So, PCNN finds many applications in image processing, including segmentation, edge extraction et al. As all known, the performance of the image segmentation depends not only directly on the adjustment of PCNN parameters and the statistical properties of image but also on the cyclic iteration times N of PCNN. If the parameters have been properly set, it turns out to be essential to select a suitable criterion to determine N.

回顾了神经网络技术的现状，指出传统人工神经网络只利用了生物神经元有限的属性进行模型构建，而90年代产生的脉冲耦合神经网络充分利用了哺乳动物视神经网络特有属性，其神经元模型除了考虑生物神经元特有的线性相加、兴奋与抑制属性外，还考虑到生物神经元特有的非线性相乘调制耦合特性；考虑了哺乳动物视神经系统视野受到适当刺激时，相邻连接神经元同步激发产生35Hz～70Hz振荡脉冲串特性等，所以PCNN网络模型更靠近真实生物视觉特性，特别是哺乳动物视神经网络，特别适合计算机图像处理应用，尤其在生物细胞图像分割、图像平滑、降噪及图像中目标的分类、计数等方面的研究。

Emulate calculate a watch to understand this method to use calculation precision of parameter of join structure physics is taller, and the result is stable, avoided iteration emanative appearance.

仿真算例表明了该方法用来计算连接结构物理参数精度较高，且结果稳定，避免了迭代发散的现象。

Tolksdorf [62] to prove the weak solutions of equation (2) are of C1,a if fand u are bounded with the help of some results in [40]. And by Morse iteration,we prove that the solutions are of C1,a even if f is of critical growth.

Tolksdor[62]的方法以及[40]中的一些定理证明了方程(1)弱解的C1，a的正则性；当f满足临界指数增长时，应用Morse迭代，我们首先证明了解的有界性，然后证明方程(1)的解也有C1，a的正则性。

Comparisons of ABFANT and FANT within a given iteration number are performed on the publicly available QAP instances from QAPLIB.

在QAPLIB中的典型实例上的实验结果表明，近似骨架导向的快速蚁群算法明显优于快速蚁群算法。

The successive χ2 test begins with the determinations of gametic or zygotic selection types, followed by the estimation of recombination fractions between two markers with the Newton-Raphson iteration method.

对取自MAPMAKER软件小鼠F2群体(含333个体)的5个RFLP连锁标记数据作了共显性分子标记偏分离的分析。

A test-potential method and a mean radius-screened charge loop iteration method are utilized to find the screened charges in the relativistic and the non-relativistic screened hydrogenic models.

利用试验势法和平均半径－屏蔽电荷迭代法研究基于解析势的相对论和非相对论屏蔽类氢模型。

Using three dimensional inharmonic element and the modified subspace iteration scheme for calculating dynamic characteristic of the shear wall, and using plane stress element and Newmark and Newton-Raphson method for calculation of seismic behaviors of shear wall under earthquake loads.

采用三维非协调实体元及改进子空间迭代方法计算剪力墙的特征对；采用平面应力单元并利用Newmark法与Newton-Raphson法相结合的方法计算剪力墙在地震荷载下的地震反应，并用FORTRAN77（F90）语言编制了相应的计算程序和前后处理程序，经计算验证程序是有效的。

If one is provided, it must be an iterable, i.e., a sequence, an iterator, or an object that supports iteration such as a file or a dictionary.

如果提供一个参数，则该参数必须是可迭代的，即，一个序列，或迭代器，或支持迭代的一个对象，例如：一个文件或一个字典。

Return an enumerate object. iterable must be a sequence, an iterator, or some other object which supports iteration.

返回一个枚举对象。iterable必须是一个序列\跌代器，或者其他的支持跌代的对象。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。