A cost estimation that assumes normal data distribution may not best reflect the real cost of a query when different parameters are used.
假定正常数据分布的开销评估可能并不能最好地反映查询使用不同参数时的实际开销。
Based on the embedding theorem of fuzzy sets, we consider a sort of parameter family for the distribution of imprecise data and propose the corresponding point estimation approach.
基于模糊集的嵌入定理，对非精确数据的分布提出一种统计参数族，并给出相应的点估计方法。
Differential coefficient method together with distribution parameter estimation is put forward, so that the data processing may be implemented on a computer, thus greatly reducing calculation.
提出了在用改进雨流计数法进行载荷数据统计时结合载荷分布参数估计的变差系数法，可简化统计处理过程，提高计算速度。
The software developed in this paper mainly contains curve fitting of measuring data, Gaussian distribution estimation of curves, calculation of the size of facula, divergence angle and waist facula.
文中开发的实验数据处理软件主要包括测量数据曲线的拟合、判断曲线是否符合高斯分布、光斑大小的计算、发散角和腰斑大小的计算。
The state estimation of water distribution system is systematically summarized, which includes parameter estimation, calibration assessment and data (sample) design.
系统地总结了供水管网状态估计的研究内容，包括参数估计、校核评估、数据(样本)设计。
The kernel estimation method analyzes the data distribution by not using the prior knowledge of data distribution. This method avoids the impaction of model and parameters estimation.
核密度估计方法从数据样本本身出发研究数据分布特征，不利用有关数据分布的先验知识，避免了模型估计和参数估计的主观影响。
The data processing method of metalized capacitor life expectancy and GLUE method of parameter point estimation of Weibull distribution are introduced in the course of analyzing.
分析过程中介绍了威布尔分布的金属化电容器寿命数据处理方法和威布尔分布参数点估计的GLUE方法。
Based on this, it is presented to a new method on bad data of distribution systems monitored and modified and a distribution state estimation based on matching power flow.
由此提出了一种新的配电系统不良数据检测及校正的方法，并给出了一种基于配电网匹配潮流状态估计方法。
The paper advances a feasible estimation methodology of using remote sensing data to calculate sea ice resource which includes ice extension and inversion ice thickness distribution.
文中提出了一种简单易行的海冰资源量遥感估算方法，包括提取海冰的结冰范围和反演冰厚分布。
Present status of the distribution system state estimation, and methods of bad data detection and identification are surveyed here.
并对配电网状态估计的研究现状和常用不良数据的检测与辨识方法进行了描述。
The problem about bad data detection and identification in distribution system state estimation is focused in this thesis.
本文着重分析了配电网状态估计中的不良数据检测与辨识的问题。
A new method of moment parameter estimation parameter is given by double side censored data and interval data in the exponential distribution.
对指数分布下的双截尾数据和分段数据，给出了其参数矩估计的一种新的方法。
F test; t test)and estimation error of the model. Evaluating index for spatialised data products includes mean value, maximum value, value distribution range and spatial distribution of errors.
完整的属性数据空间化误差的评价指标包括数据源、空间化模型和数据产品等三个方面。
F test; t test)and estimation error of the model. Evaluating index for spatialised data products includes mean value, maximum value, value distribution range and spatial distribution of errors.
完整的属性数据空间化误差的评价指标包括数据源、空间化模型和数据产品等三个方面。
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