查询词典 systematic sampling

Probability sampling designs, estimation and efficiency comparisons.

概率抽样设计，估计和效率比较。

With probability sampling and home interview survey data of Shanghai and Chengdu, we use factor analysis to build the structure of romantic Index Scale.

以上海和成都概率抽样和入户面访的调查资料为依据，采用因子分析方法构建浪漫指数的结构量表。

Utilizing probability proportional to size sampling method, the study sampled 500 faculty members at 51 universities in Taiwan.

针对台湾51所一般大学教师依多阶段抽样进行问卷调查，共发出500份，问卷回收338份，有效问卷335份，回收率66.4％。

As the complex of the safety margin the solution of failure probability by the improved and sampling Monte-Carlo method is recommended here.

鉴于功能函数的复杂性，推荐应用改进的抽样蒙脱卡罗方法求解失效概率和可靠度。

Methods According to the classification of east, middle and west areas in China, as well as urban and rural, the multi-stage cluster probability sampling was used to select randomly total 17607 children under 5 years, whose weight and height were measured in standard method.

方法采用多阶段分层整群随机抽样的方法，按照东、中、西三类地区和城市、农村的分层原则，在全国选取17607名5岁以下儿童，测量儿童的身高和体重。

In probability sampling, a statement of the likelihood that a range of values i.e.

Confidence level：置信度在随机抽样中，它代表了一组数值成为真实人口数值的可能性。

The SRGS method takes the system capacity as an important parameter to adjust the sampling probability.

该方法将监测系统处理能力作为采样概率调节的一个重要参数。

The quantitative analysis of the input parameters can be done by probability random sampling deduction method for the leaking source of pipeline gas.

采用随机抽样推断法对管道煤气泄漏源的输入参数的不确定性问题进行定量的分析，并且讨论了泄漏时间的不定性与确定泄漏源强度的关系，提出了管道气体泄漏时间估算方法。

Content includes probability, statistical distribution, sampling, estimation, hypothesis testing, regression, multiple regression, and random process.

主要内容包括：概率、统计分布、抽样、估计，假设检验、回归、多元回归和随机过程等。

Genetic algorithm optimization process can be seen as algorithms in the process of constant cycle of viable domain random, using the results of previous sampling probability distribution on the target point estimates, and then based on an estimate of the projected distribution of a sample point.

遗传算法优化的过程，可以看作算法在循环过程中不断对可行域进行随机抽样，利用前面抽样的结果对目标点的概率分布进行估计，然后根据估计出的分布推算下一次的抽样点。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。