- 更多网络例句与抽样相关的网络例句 [注：此内容来源于网络，仅供参考]
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Through compared with the difference of the sampling inspection's OC curves between existent and nonexistent inspection error by utilizing grouping method, we get the conclusion that all the traditional methods are designed on the premise that there is none inspection error exist, so it would terribly depress the probability of acceptance and couldn't veritably reflect the quality of the lot for inspection, if the inspection error is exist when sampling inspecting.
同时通过对集团检验错误存在与否的抽样检验特征曲线的比较，指出：以往的集团抽样检验方案设计，都是在假设无检验误差前提下设计的，在抽样检验中，若存在检验错误，会严重影响抽样检验的接收概率，使抽样检验结果不能客观地反映检验批的质量。
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Based on the precision and the cost of the relationship between the use of conditional extremum for the function of several variables method to determine when the first sample for sampling with probability proportion to size,the second-simple random sampling,the two-stage sampling is optimal allocation.
本文根据精度与费用之间的关系，利用求多元函数条件极值的方法，确定当第一级抽样为有放回PPS抽样，第二级抽样为简单随机抽样时，二阶抽样的样本容量最优分配。
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Illustrations are used to analyze the limitation of line sampling firstly. For linear limit state, the efficiency of LS is affected by the dispersion of the actual important direction from the optimal one, the bigger the dispersion is, the lower the efficiency is. For non-linear limit state, in case that the actual important direction deviates from the optimal one greatly, the efficiency and the precision of LS decrease seriously, even wrong results are obtained.
首先通过算例分析线抽样方法存在的问题，对于线性问题，线抽样法的效率受抽样重要方向与最优重要方向偏离程度的影响，这种偏离程度越大，效率越低；而对于非线性问题，当抽样重要方向与最优重要方向偏离较大时，线抽样的效率和精度均严重下降，甚至得出错误的计算结果。
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Among probability sampling methods, what kinds of research conditions are more appropriate for each sampling method
什麼样的情况下，适合用机率抽样方法简单随机抽样有4种方法：1。简单随机抽样2。分层随机抽样3。系统抽样等距抽样
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In this review, historical background of sampling theory and development of forest inventories are presented. Application and research status of sampling methodology and technology in forest inventory in China and abroad are analyzed and reviewed, which includes sampling with probability proportional to frequency or to size, sampling based on remote sensing and sampling for rare population. Finally, both development trends and some problems of sampling methodology are discussed.
本文介绍了抽样理论的发展和国内外森林抽样调查发展过程，论述了森林调查中主要抽样方法的特点和研究现状，其中包括等概和不等概抽样、基于遥感的抽样、针对稀疏总体分布的抽样调查技术方法，并对这些抽样技术在国内外森林资源调查中的应用进行了综述，概括了抽样调查技术方法的发展趋势，最后总结了抽样技术方法还存在的一些问题。
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The survey conducted in Taiwan was designed using a multiple-stage sampling method that utilized the principles of probabilities proportional to size, stratified sampling, and systematic sampling to strengthen the sample's effective representation.
为符合研究的需要，本次研究的抽样方法采取较复杂的多阶段抽样法，主要应用「抽取率与单位大小成比例」原则，结合分层抽样、等距抽样等抽样方法的优点，以求提高样本代表性。
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Excepting the conventional methods of surveying samples, such as simple random sampling, stratified sampling, cluster sampling, systematic sampling, liner regression sampling, ratio estimator, two-stage sampling, double sampling, rotate sampling, non-probability sampling, there is sequential sampling and mark-recapture, particularly mark-recapture was introduced in detail.
针对生物资源的调查，除了一般抽样方法如：简单随机抽样、分层抽样、整群抽样、系统抽样、双重抽样、二阶抽样、样本轮换、比率估计、线性回归抽样和不等概抽样，还有序贯抽样和标记-重捕获方法，这里特别详细介绍了标记-重捕获方法。
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Simple random sampling; stratification ; ratio and regression estimates; systematic sampling, subsampling; cost functions and choice of optimal design; estimation procedures.
简单随机抽样，分层抽样、比率和回归估计，系统抽样、次级抽样，成本函数与最优设计选择；估计过程。
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Firstly,the sampling design has great impact on the accuracy of remote sensing classification.There exists great randomicity on the result of points and cluster sample verification on the different Sampling design.On the same sampling design,the stability of point sample verification is higher than that of Cluster sample verification.Secondly,the average accuracy of different sampling designs of multi-point and multi-cluster sample verification can reflect the accuracy characteristic.During the course of point sample verification,stratified sampling's error is lower than others'.During the course of cluster sample verification,systematic sampling and stratified sampling's accuracy are prior to simple random sampling's.
研究结果表明：（1）抽样方式对遥感分类精度评价结果的影响是客观存在的，不同抽样方式下的点样本和群样本检验结果都存在一定的随机性，但同一种抽样方式下，点样本检验精度评估结果的波动幅度小于群样本检验，稳定性比群样本检验要好；（2）不同抽样方式下的多次点样本和群样本检验的平均精度检验结果基本上都能够反映分类图像的精度特征，其中，点样本检验中，分层随机抽样点样本检验效果较好；群样本检验中，系统抽样群样本检验和分层随机抽样群样本检验的效果优于简单随机抽样群样本检验。
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Comparison of statistical and nonstatistical sampling A sample is said to be nonstatistical when the auditors es timate sampling risk by using professional judgment rather than by using sta tistical techniques.
统计抽样与非统计抽样的比较当审计师凭借职业判断而不是运用统计技术来估计抽样风险时，这种抽样就称为非统计抽样。
- 更多网络解释与抽样相关的网络解释 [注：此内容来源于网络，仅供参考]
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Cluster sampling：群集抽样
6.群集抽样(Cluster Sampling)在本法抽样是以随机选出一群,一群为单位,不是个别单位. 群集抽样之优点简便易行,经济省事. 但是易产生抽样误差危险性很大. 分层之基础有赖抽样设计者之经验及判断. 理想上分层之数目愈多愈好. 因为层数愈多,
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multistage sampling：多级抽样
5,多级抽样 多级抽样(multistage sampling):在大型流行病学调查中,常结合使用几种抽样方法.先从总体中抽取范围较大的单元, 在大型流行病学调查中, 多级抽样 在大型流行病学调查中 常结合使用几种抽样方法.先从总体中抽取范围较大的单元,
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probability sampling：概率抽样
1.1.1 概率抽样(probability sampling)也称随机抽样. 与非概率抽样不同的是概率抽样是严格地按照给定的概率来抽取样本. 随机原则不等于等概率原则. 估计量不仅与样本观测值有关,也与其入样概率有关. 需要说明的是以下概念都是指概率抽样.
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quota sampling：定额抽样
(一) 课本在非机率抽样的类型中,有提到定额抽样(quota sampling),简单的说,其是先将母体的特徵列表,再依母题这些特徵的不同比例,依序抽出样本,使样本和母题具有同样特徵,以增加代表性,而此种抽样方法,和机率抽样中的分层抽样(stratified sampling),
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Simple random sampling：简单随机抽样
简单随机抽样(Simple Random Sampling). 简单随机抽样是最为基本的概率抽样,它是其它抽样方法的基础. 它是一种特殊的等概率抽样方法,总体中每一个个体都有同等被选中的机会,而且样本的每个个体都是单独被抽取的.
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Sampling error：抽样误差
估计误差 抽样误差(sampling error) :任何因为抽样中的机遇(chance)所产生的变动. 增加样本数,可以降低抽样误差. 使用恰当的样本统计量来估计母体参数,也是降低抽样误差的方法之一. 适当的抽样方法,可以降低抽样误差.
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sequential sampling inspection：序贯抽样检验
序贯抽样检验...序贯抽样检验(sequential sampling inspection)是多次抽样的进一步发展,最早是由美国A.Wald于二次大战时期为适应贵重军品抽样检验的需要提出的,序贯抽样检验不实现规定抽样次数,每次从批中只抽取一个单位产品,
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sequential sampling method：逐次抽样法逐次抽样法
sequential recall 序列回忆 | sequential sampling method 逐次抽样法逐次抽样法 | sequential sampling plan 逐次抽样方案逐次抽样方案
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sequential sampling plan：逐次抽样方案逐次抽样方案
sequential sampling method 逐次抽样法逐次抽样法 | sequential sampling plan 逐次抽样方案逐次抽样方案 | sequential test 序贯检验
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Sequential sampling：逐次抽样
若以抽样的方式来分类,可分为单次抽样(single sampling)、双次抽样(double sampling)、多次抽样(multiple sampling)与逐次抽样(sequential sampling). 4.箭头图(arrow diagram):箭头图是用来规划作业和事件之前后顺序的工具.