查询词典 mutation

The thesis also draw several conclusions as follows:(1) Orthogonal experiment design method can be viewed as a special case of genetic algorithm, i. e. a genetic algorithm with a fixed initial population, an oriented-mutation operator and one evolution epoch.(2) In terms of running steps, genetic algorithm is more complex than orthogonal experiment design method.

论文首次对正交试验设计法和遗传算法这两种独立发展起来的方法进行比较研究，提出(1)正交试验设计法是遗传算法的一种特例，即是一种初始种群固定的、只使用定向变异算子的、只进化一代的遗传算法；(2)遗传算法产生的优化解优于正交试验设计法产生的优化解，且遗传算法处理交互作用项的效率高于正交试验设计法；(3)遗传算法的步骤比正交试验设计法复杂，所需的试验次数也要多。

When the system dynamic analysis of running mechanism of GA is applied, the constringency of GA can be discussed when mutation operator is omitted.

这种不完善主要表现在没有完整的理论解释算法的机理，缺少广泛而完整的有关遗传算法收敛性理论。

Pearson coefficient of continency is 0.337 and 0.399 respective.K-ras gene mutation had close correlatetion with cigarette smoking in lung adenocarcinoma.

结果 肺癌组织K-ras基因突变率为52.58%，FHIT基因转录异常阳性率为71.25%，与正常肺组织比较差异均有统计学意义(P.05)。

Further, under weakened conditions (without the assumption of continuity of objective function), the convergence theorem of EP and ES with the general mutation operators is also given.

针对一般的变异算子，在不要求目标函数连续的情况下，证明了保持最优个体的进化规划和进化策略，迭代产生的最优个体的函数值收敛到问题的最优值的ε-邻域的概率为1。

From the control, the static characteristic curve should be continuous, smooth, no mutation; dynamic characteristics of common frequency response curve or curves to express.

从控制要求来说，静态特性曲线应连续、光滑，没有突变；动态特性常用频率曲线或响应曲线来表示。

Years 8 31, Fengyun mutation, ST Jintai shares ran directly from the trading limit for a continuous period of seven out of limit.

二千零七年8 31，风云突变，意法半导体从金泰股票跑了7个连续跌停直接从限制。

In addition, the study revealed that among those who harbored a BRCA1 mutation, the younger they were at the time of initial diagnosis the higher was their risk of developing contralateral breast cancer.

此外，研究显示，在那些谁包庇的BRCA1基因突变，年轻的他们在初次诊断时是高是他们的发展对侧乳腺癌的风险。

Two strategies, optimizing hill- climbing and large- scale gene mutation, are used to overcome the disadvantages of the primary hybrid algorithm, which easily converg to local optima.

用遗传与模拟退火相结合的混合算法对信道分配问题进行研究，并通过加入"寻优式爬山"与大规模基因突变两种优化方法对混合算法进行改进，克服了一般遗传算法收敛速度慢以及易于陷入局部最优解的缺点。

Sow the characteristic that serves node according to covering the group in the network, introduce gene difference control and strategy of mutation elite control.

根据覆盖网络中组播服务节点的特征，引入基因差异控制和变异精英控制策略。

And, when I play god I can crank up the global mutation rate.

当我扮演上帝时，我能加快地球的突变率。

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。