可乘的
- 与 可乘的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
And then some ellipses that AUGR estimator is better than the OLS estimator and AUGL estimator is better than the OLS estimator are given, respectively.Second, the definition of the almost unbiased unified biased estimator is proposed. This definition includes the familiar almost unbiased estimators in literatures, and it is the unified expression of the familiar almost unbiased estimators. Followed the biased and variance are compared of AUUB estimator and the unified biased estimator, respectively. AUUB estimator has smaller bias than UB estimator and the variance of AUUB estimator is between the variance of UB estimator and 4 times of the variance of UB estimator. Finally the properties of AUUB estimator are discussed. The conclusion is gained that there are parameters made AUUB estimator is better than OLS estimator in terms of their mean square error. The sufficient and necessary condition that AUUB estimator is admissible is given. The ellipse is given that AUUB estimator is
然后给出了几乎无偏统一有偏估计的定义,该定义包括了文献中常见的几乎无偏估计,实现了常见几乎无偏估计的统一表达式;接下来我们比较了几乎无偏统一有偏估计与统一有偏估计的偏度与方差,得出了几乎无偏统一有偏估计比统一有偏估计有较小的偏度,几乎无偏统一有偏估计的方差介于统一有偏估计的方差与统一有偏估计的方差的四倍之间的结论;最后我们对统一有偏估计的主要性质作了讨论,证明了存在参数K,S使得几乎无偏统一有偏估计在均方误差意义下优于最小二乘估计的结论,给出了几乎无偏统一有偏估计为可容许估计的充要条件,还给出了在均方误差阵意义下几乎无偏统一有偏估计优于最小二乘估计的椭球。
-
We make the following assumption for When 2 is positive definite matrix, different estimators about matrix of regression coefficients and inefficiency of Least squares estimate have been discussed in many documents. Considered 2 is nonnegative definite matrix, this thesis derives Best linear unbiased Estimate of parameter matrix B and estimable parameter function KBL under the meaning of matrix nonnegative definite and the property of maximum probability of BLUE is investigated.
当∑>0时,众多文献讨论了回归系数阵的各种估计及LSE的有效性,本文考虑了当∑≥0的情形,给出了回归系数阵B及其可估参数函数KBL的在矩阵非负定意义下的最优估计,研究了它的一个最大概率性质,并且讨论了最小二乘估计成为最佳线性无偏估计的充分必要条件,在此基础上给出了均值矩阵的最小二乘估计与BLUE的偏差估计,定义了LSE相对于BLUE的一个相对效率,并给出了它的界。
-
In general, the doctrines can be divided into three categories: Original Buddhism, Hinayana Buddhism, and Mahayana Buddhism.
佛教的教义十分复杂,但大体可分为原始佛教、小乘佛教和大乘佛教三大类。
-
For the ill conditioned load flow caused by the error produced in the transformation from electricity quantities to average power, direct current load flow and sensitivity vector are presented to find out the ill node, then by adjusting the load curve and generation curve in a certain principle, which is shown in detail with several flow charts, a new operation mode is reestablished to ensure the convergence of the calculation. Optimal multiplier method is proposed to work out the least square solution according to ill conditioned structural power network. The electricity quantities flow method enhances the reliability and accuracy of the calculation of the power transmission losses.
该方法可根据当前输电网中各个变电站24小时的电量记录,利用电量潮流计算对输电网总线损和各条线路损耗进行计算,使计算的精度满足降损措施分析和指标考核的要求;并且对于由负荷出力曲线转化成平均功率计算潮流时引入的误差,进而导致潮流计算不收敛的情况,采用直流潮流法,依据相角对有功功率的灵敏度向量判断出"网络异常点",并且给出了解决此种情况的方法流程图;针对结构病态的电力系统潮流计算不收敛的情况,运用非线性约束优化方法中的最优乘子法求解潮流方程的最小二乘解,从而解决了电量潮流法计算理论线损时的收敛性问题,增强了该方法的适用性。
-
Exive least-squares solutions, antire?exive least-squares solutions, bisymmetric least-squaressolutions, symmetric and antipersymmetric least-squares solutions, symmetric or-thogonal symmetric least-squares solutions, symmetric orthogonal antisymmetricleast-squares solutions and their optimal approximation to the linear matrix equa-tion AX = B, and solve them successfully. 2. For Problem II, we can convert it to another problem of finding the least-squares solutions with the least norm of a new consistent matrix equation. Onthe base of the solutions of Problem I we can apply the iterative method to get
本文所构造的迭代法的优点在于先利用法方程变换将求矩阵方程的最小二乘解转化为求一个相容矩阵方程的解的问题,再利用迭代法对于任意给定的初始矩阵进行迭代,均可在有限步内迭代出所求问题的一个解;可将问题II转化为求新方程的极小范数解的问题,同样用迭代法求解,从而系统且全面地解决了问题I、II在约束矩阵类如中心对称、中心反对称、自反矩阵、反自反矩阵、双对称、对称次反对称、对称正交对称、对称正交反对称矩阵中的最小二乘解及其最佳逼近问题。
-
Least Squares Estimates of the SVD decomposition method, the valuation process can be transformed into squares overdetermined equations deal with the problem, and can be calculated singular value decomposition least squares problem.
详细说明:最小二乘估值的SVD分解计算方法,本程序可将最小二乘估值问题转化为超定方程组的问题处理,且可用奇异值分解的方法计算最小二乘问题。
-
Nowadays in India, the true orthodox Buddhism has been completely extinguished with only a few superficial appearances left, and the substance has been replaced by the non-Buddhist tantrism of couple-practice. About Theravada Buddhism, although it can still keep the appearance of sound-hearer Buddhism and is not defiled by the non-Buddhist tantrism, it is rare to find the saints who can personally realize the sound-hearer liberation now. As for Mahayana Buddhism, there are only Buddhist rituals and the mind-consciousness dharma now in China, which has just recovered from the ravage of the Cultural Revolution. In both Japan and Korea, only the appearance of Buddhist rituals but not practice remains and there is no even the mind-consciousness practice like in China. Therefore the practitioners in China, Japan and Korea cannot touch the real content of the practice and realization to fulfill the Buddhahood way of the great-vehicle Buddhism.
现存的佛教,在印度已经完全灭亡,只余极少数人保留著佛教的表相,本质已是坦特罗双身法的非佛教了;南传的小乘佛教教域,虽然仍能维持小乘声闻佛教的表相而不被坦特罗双身法的非佛教所染污,然而能够实证声闻解脱道的圣者亦已难可觅得;而北传的大乘佛教教域中,中国才刚从文化大革命的破坏中恢复了仪式表相及意识境界的佛教,日本、韩国则只剩佛教仪轨的表相而无修行的表相,已谈不上如同中国地区意识境界的修行了;是故中、日、韩对於大乘佛教实践菩萨道的见道与修道真实内涵,都已经都无力触及了。
-
A multi-distance measurements method is employed in this paper. A single parameter fitting method and a double parameters (reduced scattering coefficient and amplitude factor) fitting method on the basis of the least square Newton fitting algorithm is used to derive the optical parameters respectively. For the finite-thickness homogenous tissue, it can be concluded that the rest terms in expressions of diffusion reflectance and transmittance for the corresponding tissue geometries that subtract the exponential term contained source-detector distance depend on the detected position weakly.
在多程测量的基础上,使用单参数最小二乘牛顿法拟合方法和双参数(约化散射系数、幅度因子)最小二乘牛顿法拟合方法,得到有限厚均匀组织的反射率分布和透射率分布公式中除去包含测量位置的指数项的其它部分对测量位置皆具有弱依赖性的结论,并对拟合结果进行了分析讨论;而对于有限厚平板状双层组织,可根据对反射测量结果及透射测量结果进行拟合所得的约化散射系数间的差异及常数因子的正负判断双层组织的可能结构分布。
-
Features: Vibration massage for neck, moderate intensity, very comfortable, you can massage the neck muscles, rapid ease fatigue, relax and stylish compact, high-grade fabrics in velvet filled with green hair foam, car, plane or watching TV can use, lunch break or before bedtime massage can improve sleep quality, white-collar people and the elderly are the best choice.
功能:震动按摩,适用于颈部,,力度适中,非常舒服,可以按摩颈部肌肉,快速缓解疲劳,放松心情,造型时尚小巧,高档绒面料内填充环保发泡沫塑料,坐车,乘飞机或看电视时都可使用,午休或睡前按摩还可提高睡眠质量,是白领人士和中老年人的最佳选择。
-
Airplane:After landing on Jinan or Beijing airport,you can directly directly arrive at the Valley by train or coach.
飞机路线:济南的遥墙机场,距市中心33公里,从这里坐大巴到火车站,然后可转乘火车,也可直接走京福高速公路到达太阳谷。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力