进一步研究了采用重要性抽样技术提高抽样效率的问题。
And the importance sampling technique is applied to improve the sampling efficiency.
应用该方法可以大大提高小概率事件的抽样效率,文中给出一组仿真结果对照。
Using the way, the sampling efficiency for small-probability events can be improved considerably, as can be seen from the contrasts shown in a group of results of simulation.
分析和实际模拟表明,在以正态分布进行抽样的前提下,应用优化的参数,可使抽样效率进一步提高。
Theoretical analysis and the actual simulation all indicate that the sampling efficiency can be increased significantly by using these optimum parameters.
分析和实际模拟表明,在以正态分布进行抽样的前提下,合理选取抽样样本平均值和标准差,可使抽样效率进一步提高。
Theorical analysis and practical simulation indicate that if the samples are of normal distribution, the modelling efficiency can be increased further by using sensible parameters.
通过使用重要抽样技术,提高了混合分析法的计算效率和计算精度。
The efficiency and accuracy of the mixed method are improved by the use of the important sampling updating technique.
同已有的最好的方法比较这些随机抽样方法的效率均有提高。
The efficiency of these new random sampling methods is high in comparison with the best of the existing methods.
通常情况下,回归估计的效率高于系统抽样。
The efficiency of regression estimate was usually higher than systematic sampling.
利用卷积反投影算法对图像进行重建时,要降低成本,提高成像效率,就必须选取合理的抽样间距和投影数。
It is important to select suitable sampling space and projection data for reducing cost and improving the image reconstruction efficiency in convolution backprojection algorithm.
结果表明:点抽样估计林分断面积是无偏的,而估计林分每公顷株数效率不高。
The results indicated that it is unbiased to estimate basal area of stand but inefficient when estimating stems per hectare by point sampling.
复合重要抽样可以减小计算方差,提高计算效率。
Calculation variance can be reduced by multiple important sampling technique, and then calculation efficiency can be improved.
为了减轻麦蚜虫抽样调查的难度,提高调查的效率和准确性,设计了一套基于计算机视觉技术的蚜虫数量自动计数的新方法。
To improve efficiency and accuracy of the current estimation system for cereal aphids, a novel method based on computer vision technology was introduced.
而由抽样风险确定的抽样方案直接关系到加工过程质量控制和检验成本控制等加工效率问题。
Moreover sampling plan determined by the factors such as sampling risks was related to the process efficiencies including process quality control and inspection cost control.
调查采用分层整群抽样的方法,选取972人作为调查对象,得有效调查问卷890份,有效率为91.6%。
Using the method combining systemic sampling and cluster sampling together, we select 972 persons to be the inquisition object, collecting 890 valid questionnaire, with 91.6% efficiency .
针对有限样本条件下,大型复杂系统平均寿命评定的蒙特卡罗法,提出利用MATLAB进行抽样模拟,大大提高了计算效率,对工程中大型复杂系统平均寿命评定具有重要应用价值。
According to Monte Carlo sampling simulation method of MTTF, MATLAB is to be used in sampling simulation, which greatly increases the computing efficiency. It is very important for engineering ap...
该项抽样技术体现了分层抽样与交叉抽样的有机结合,有利于提高抽样调查的估计效率。
This sampling technique shows the organic combination of the delaminated sampling and the intercrossing sampling, which is in favor of raising the estimation efficiency of the sampling survey.
本文给出了制定定时截尾寿命试验下指数分布产品失效率的抽样检验方案的一个新方法,检验统计量是总试验时间。
A sampling inspection plan for the failure rate of GBVE distribution with the test statistic of total experimental time based on Type I censoring is presented.
本文给出了制定定时截尾寿命试验下指数分布产品失效率的抽样检验方案的一个新方法,检验统计量是总试验时间。
This paper gives a new statistical method of working out a sampling inspection plan for the failure rate of exponential populations.
为了解决数字模拟方法效率低的问题,提出了相关变量模糊可靠性灵敏度分析的线抽样方法。
To overcome the disadvantage of numerical simulation, a line sampling algorithm is developed for FRS analysis with correlative variables.
以总试验时间为检验统计量,在定时截尾寿命试验下研究GBVE分布产品失效率的抽样检验方案,随机模拟结果显示此方法有效。
A sampling inspection plan for the failure rate of GBVE distribution with the test statistic of total experimental time based on Type I censoring is presented.
以总试验时间为检验统计量,在定时截尾寿命试验下研究GBVE分布产品失效率的抽样检验方案,随机模拟结果显示此方法有效。
A sampling inspection plan for the failure rate of GBVE distribution with the test statistic of total experimental time based on Type I censoring is presented.
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