The natural number coding, the random population selection, the simple crossover strategy of "two-parents-and-one-kid" and the fixed mutation probability were totally adopted.
在算法中采用了自然数编码、随机选取种群、简单的“双亲单子”交叉策略和固定的突变概率。
Thus, any random changes in the interior, fledgling ribozymes that could speed up nucleic acid replication rates will spread rapidly through an evolving population.
这样一来，细胞内部发生的使得核酶加速核酸复制速率的任何变化，都会在进化群体中快速扩散。
Although random sampling used for many surveys fails to cover large segments of the population, the procedure nonetheless offers insight into voting and consumption patterns.
虽然许多调查所用的随机取样不能覆盖大部分人口，但是这一过程使人们能更深刻地理解选举和消费的模式。
The second parent is picked at random from the parent population.
另一个双亲是随机地从双亲人群中挑选的。
So build a model at random and, unless it's really simple (a one-prey-one-resource population model) it won't work.
所以，除非它确实是简单的(一个猎物一个资源种群模型)否则随机建立模型是行不通的。
New versions of a gene can also become universal in a population through a random process known as genetic drift.
当人体经过遗传漂变的过程后，基因变种在人类中变得更常见。
Also the results showed that the Stratified Random ClusterSampling is an adequate sampling method for the genetic variation analysis of yellow cattle population.
同时研究表明，系统随机整群抽样是进行黄牛群体遗传变异分析的最适抽样方法。
A new random optimization algorithm based on population search is proposed.
提出了一种新的基于群体搜索的随机优化算法。
Your test player population is not going to be random sample. It will be a self-selected sample whose average motivations and behavior will be biased.
你的测试玩家人口不是随机样本，而是特定的样本拥有相同的动机和行为也会产生偏向。
Methods With simple random sampling, 1010 floating population and 240 local people in Wuxi were interviewed by questionnaire.
方法采用单纯随机抽样方法，对无锡市1010名流动人口和240名当地人群进行问卷调查。
At the same time, 49 Yangtse River Delta White Goats were sampled as contrast population from the suburb of Yangzhou city Jiangsu province by the simple random sampling method.
同时，在江苏省扬州市郊区简单随机抽样49只长江三角洲白山羊作为对照群体。结果表明。
By borrowing the ideas of population from genetic algorithms, we introduce an adaptive random search in quasi_Monte Carlo method (AQMC) for global optimization.
借用遗传算法中种群的概念，介绍了一种解全局优化的拟蒙特卡罗自适应搜索算法。
On the one hand, through leading perturbation variables into the generation process of particle population, a balance is reached between the order and random behaviors.
一方面在新的粒子种群产生过程中引入扰动变量，使粒子群在遵守秩序和随机行为之间达到平衡；
Such as the system is initialized with a population of random solutions and searches for optima by updating generations and the mechanism of iteration.
例如这个系统也是最初被初始化成为随机解的集合，然后通过更新后代并用迭代的方式来实现搜索最优解。
Based on the random death model, Chapter five predicted the future mortality of our countryside population, and estimated the 60 years and 65 years life expectancy.
根据拟合出的随机死亡人口模型，对我国未来乡村人群的死亡率进行了预测，并测算出未来60岁人群与65岁人群的期望寿命。
It is reasonable rather than random combination of the population can achieve the effect of disease resistance.
种群需要合理组合，而不是任意组合才能达到抗病的效果。
Under simple random sampling scheme without replacement and unknown proportion of population possessing neutral attribute, the optimal allocation of sizes of two sub-samples is given.
对简单随机不放回抽样，在总体非敏感属性个体比例未知的情况下，给出了两个子样本容量的最优配置。
If appropriate, place subsections in an appropriate order. If listing countries, place them in alphabetical order rather than, say, relative to population of OECD countries, or some random order.
尽量让小标题按适当顺序排列。例如要列出多个国家名，请按国家首字母顺序列出，而不是随机列出。
Three natural population of l. Sagitta, add up to 62 individual, with 17 random primers, 128 polymorphic loci.
箭叶橐吾的三个自然居群，总计62个个体，使用17个随机引物，共扩增出128个多态位点。
Methods in 1999, a cross-sectional study was carried out in a natural population of Beijing, using stratified-random sampling method.
方法1999年在北京市自然人群中采用分层随机抽样的方法进行横断面调查。
The results indicated that the distribution pattern of population individuals was random distribution pattern, and the population model was stable growth-oriented.
研究表明，种群个体分布格局为随机分布，种群模型属稳定增长型。
Methods Different target population were chosen at random and investigated with questionnaire.
方法采取随机抽样方法，对不同层次目标人群进行问卷调查并统计分析。
Random fluctuations in the frequency of the appearance of a gene in a small, isolated population, presumably owing to chance rather than natural selection.
在一个小的、与世隔绝的种族里，基因面貌频率上的偶然波动，可能因为偶然性而不是自然选择。
When the answers do not coincide, the random effects estimate may not reflect the actual effect in any particular population being studied.
当答案不一致时，在任何一个被研究的总体中，随机效应估计也许不能反应真正的效应。
Methods Random sample were obtained from the whole population by multiple stratified cluster and 1 320 objects were surveyed in their own homes by questionnaires.
方法采用多阶段整群抽样和配额抽样相结合的方法，对深圳市1 320名居民进行入户问卷调查。
We used cross-sectional data from random urban population samples of 7559 men and 7471 women aged 45-69 years, and not taking antihypertensive medication, from Russia, Poland and Czech Republic.
从俄罗斯、波兰和捷克共和国公民的横断面数据中随机抽取年龄在45-69岁的7559名男性及7471女性，入选者皆不使用抗高血压药物。
Methods The grouped random sampling rule survey was carried out in a sample population of 8757 who lived in seaside district of Rongcheng city.
方法采用整群随机抽样方法，抽取荣成市沿海地区8757名渔民为调查对象。
The paper proposes new separate ratio estimators for population mean using known skewness coefficient of auxiliary variable in stratified random sampling.
本文在分层随机抽样下通过使用辅助变量的偏斜系数提出了几个总体均值的估计。
To undertake a systematic random sampling, one needs to know the total number of households, the average number of children under 5 years of age in a household, and the total population.
要进行一次系统随机抽样，必需知道人群中的家庭总数，平均每户家庭5岁以下儿童的个数，以及总人口。
To undertake a systematic random sampling, one needs to know the total number of households, the average number of children under 5 years of age in a household, and the total population.
要进行一次系统随机抽样，必需知道人群中的家庭总数，平均每户家庭5岁以下儿童的个数，以及总人口。
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