point estimation
[数] 点估计
2025-11-01 09:39 浏览次数 9
[数] 点估计
1. estimation in which a single value is assigned to a parameter
by use of point estimation of the first four order moments of performance function and moment based random failure probability method, a new rs method is presented.
将功能函数前四阶矩的点估计和随机失效概率估计的矩方法运用于随机可靠性灵敏度求解,提出了一种随机可靠性灵敏度分析的矩方法。
a practical point estimation for the reliable life of a product without life distribution data is established based on a non parameter statistical method.
针对高可靠长寿命设备加速寿命试验,在试验样本量很少的情况下,用传统评估方法对其可靠寿命的评估存在精度不足问题。
a calculation formula of point estimation for weibull three parameter distribution is given.
给出威布尔三参数点估计的计算公式。
a stress-strength interference(ssi) reliability model taking into consideration stochastic stress and strength aging degradation and point estimation of unknown parameters in the model are presented.
从疲劳过程本质上是材料静强度不断退化的过程的观点出发,建立了一个非线性的、连续的强度退化模型。
based on different demand cases, a single point estimation method based on demand approximation and an analytical expression method based on traffic equilibrium model were put forward.
针对不同的需求情形,分别提出了求解交通平衡模型的基于需求点逼近的点估计法和基于模型的表达式分析法。
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。
on the basis of the result, reliability point estimation and lower confidence bound(lcb) in the last development phase were obtained.
在此基础上得到最终研制阶段可靠性点估计和可靠性置信下限。
the disadvantages were that this method was based on assumptions on the model: point estimation based on parametric assumption and some properties of error components.
但是这种方法也有不足之处,就在于它对模型有一些弱的假定点估计依赖于误差因子与模型参数的假定,密度估计依赖于误差因子特征函数的假定。
in this paper, the improved bp algorithm combined with the method of improved point estimation is used to compute the characteristic probability in the nonlinear stochastic structural analysis.
用改进的bp算法结合改进的点估计法来进行结构非线性随机分析的概率特性计算。
in this paper, we study the point estimation of linear failure rate model under censored life test.
盛炜该文研究了在定数截尾样本下线性失效率模型中参数的点估计问题。
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。
this paper also analysises the handling method of test data and the point estimation and interval estimate method for reliability life of car transmission.
并以一组轿车变速器可靠性寿命试验为例较详细地分析了试验数据的处理和可靠性寿命的点估计和区间估计方法。
results through predicting seasonal trends, the point estimation and interval prediction of clinic visits in various months of 2010 were calculated.
结果通过季节趋势预测,得到该院2010年各月门诊诊次的点估计值和区间预测值。
similarily, a measuring model based on fuzzy point estimation is given in fuzzy environment.
模糊环境中,给出基于模糊点估计的操作风险计量模型。
aiming at the problem of poor robustness of gaze point estimation algorithm of un-contact eye tracking system, we modified the eye tracking system consist of single camera and two light sources.
针对非接触式视线跟蹤系统中注视点估计算法鲁棒性差的问题,对单相机双光源的视线追蹤系统进行了改进。
the paper puts forward covariance analysis model about teaching efficiency, introduces some calculation functions and methods on the point estimation and testing hypothesis about the model.
提出了教学效率的协方差分析分析模型,介绍了模型的参数估计及假设检验的计算公式和方法。
the outcome shown that the result of point estimation for characteristic life had some deviation from its real value. in some case, a bigger error will be produced by this method.
结果表明,两参数威布尔分布特征寿命的点估计结果是有偏的,且在某些场合下会产生很大的偏差。