Third , the accuracy of parameter estimate methods for the 2 - parameters weibull distribution and four different estimate methods for failure time based on the life of fixed time measurement are discussed 在无偏性和均方误差最小的意义下,得出了上述估计方法的优劣,为定时截尾、定时测试试验数据下的可靠性分析奠定了基础。
The conclusion is that the back analysis results have the character of unbiasedness , efficiency and consistency . bayes random method which considers the prior errors is better in the back analysis of embankment dam ' s nonlinear materials 结论认为bayes随机反演结果具有无偏性、有效性和一致性的特点;在土石坝等非线性材料反演分析中,考虑先验信息误差的bayes随机反分析方法具有较好的适用性。
Then discusses its properties , such as biased property , relative efficiency of generalized variance and superiority comparisons between generalized ridge estimation and generalized least squares estimation . shows iterative algorithm based on the mean dispersion error 该估计虽然具有偏崎,但其估计精度具有良好的性质,如:有偏性、方差一致最优性、相对于广义最小二乘估计的广义方差效率、 mde ? ?有效性等。
I approach this case study by critically incorporating the spatial and institutional frameworks of the influential anthropologist g . william skinner and the 1993 nobel laureate in economics douglass north respectively . since early 1990s i have been working on comparative legal cultures 有关中国经济史的研究,几年前完成一部有关宋元闽南经济发展的书,希望通过这个个案研究,探讨一些具有普偏性的经济发展理论问题。
In order to reduce the effect of biased decision statistics inherent to parallel cancellation , a low - complexity modification to parallel interference cancellation called partial parallel interference cancellation is derived , which significantly improves performance 为了降低并行干扰相消判决量内在统计有偏性的影响,对并行干扰相消算法进行改进,引出一种复杂度低的部分并行干扰相消算法,此算法能够使系统性能得到明显提高。