dead air

Aiming at the above,the following strategy is suggested: adding the tracking and replacing mechanism to every searching node;counting the stagnation times of a node at a certain station in its searching route;if the times oversteps the allowable value,a new node randomly arises in the solution space to replace the stagnating one for improving the searching efficiency.

针对简单小世界算法在优化复杂函数时出现的停滞现象,提出对搜索进行跟踪、对停滞节点进行更替的策略。

Aiming at the stagnation exists in the cooperative particle swarm optimization,presents a new kind of the cooperative particle swarm optimization algorithm based on particle s spatial extension.

针对协同微粒群优化存在的停滞现象,提出了一种新的基于粒子空间扩展的协同微粒群优化算法。

But conventional differential evolution algorithm has a problem of stagnation that can stop the algorithm convergence.

但常规的差分进化算法存在停滞现象,容易使算法收敛停止,鉴于此本文提出一种改进的差分进化算法,对算法提出另一个终止条件并且重新产生初始个体,对种群大小N,变异率F,交叉率CR其中的也可作调整,在计算过程中引入精英策略,既防止了停滞现象也加快了收敛速率并使算法能收敛到全局最优。

There is a question of being at a standstill of Chinese soybean production in recent years.

近年来,我国大豆出现了生产停滞不前的问题。

External factors are the cause of thirty years standstill of sociology of education in Chinese mainland, but what is more important is the conflict between two different types of sociology of education and the wrong understanding of the conflict.

中国大陆教育学三十年的停滞沉沦,其原因除了外部的因素之外,更重要的是两种不同类型的教育社会学的对立冲突及其人们对冲突的错误认识。

The results show the reason of the beating stagnation period and the difference of the paper physical strength,and putting forward the optimum process condition for the beating of cotton bast pulp.

本文采用APSP法制棉秆皮制浆,研究了不同化学预处理条件和打浆压力对打浆性能以及相应成纸物理强度的影响,分析了打浆度停滞期的原因和成纸物理强度的差异,得出棉秆皮浆适宜的打浆工艺。

The mechanism of G_2/M arrest induced by PPI1 in human cervical carcinoma HeLa cells.;

PPI1诱导人宫颈癌HeLa细胞G_2/M期停滞及机制研究