查询词典 estimate

Strong uniform convergence rates are proved to be optimal for kernel type estimate and weighted estimate of conditional functional.

这是一个精细而深刻的结果。

As a transform of natural reasoning, subjective probability estimate, as long as heuristic become the new study point of heuristic probability estimate.

启发式概率估计的研究范式能够将启发式理论假设与概率估计的可量化特点结合起来，可以更好地以实验的方法探索启发式推理的内部机制。

In the study of the Lagrange stability of impact motion, we give some conditions of the bouncing solution of the asymptotically linear equation which is bounded or unbounded. Outside of a large disc, using the symplectic transformation of the Hamilton system to estimate the iteration of the successor map. Applying the Moser's small twist theorem, we get the invariant curves and then give the proof of the bouncing solutions which is bounded. We will estimate the successor map of the equation directly for proving the unboundedness of the bouncing solutions.

在碰撞运动的Lagrange稳定性的讨论中，给出了渐近线性方程碰撞解有界或无界的条件，在充分大的圆盘外，通过Hamilton系统的辛坐标变换的角度平均来估计后继映射的迭代，应用Moser小扭转定理得到不变曲线从而给出在一定条件下碰撞解有界的证明，碰撞解无界性的证明将采用直接估计后继映射的方法给出。

A torsional oscillation observer based on the general observer was discussed to estimate the speed of the turbine generator. The dynamic characteristics of standard Luenberger observer with quantization effects were studied by Lyapunov stability criterion. It is concluded that the state estimate error can not asymptotically converge to zero in-the-large in presence of quantization effects.

讨论了基于状态观测器的汽轮机轴系扭振测量方法，采用李亚普诺夫稳定性判据分析存在量化效应的条件下标准龙贝格观测器的动态特性，指出由于数字系统中的有限字长效应会使观测器的跟踪性能恶化，估计误差不能在大范围内渐进收敛。

Key words: probability and symbolic statistics; linear model; parameter estimate; best linear unbiased estimate

关键 词：概率论与数理统计；线性模型；参数估计；最佳线性无偏估计

Using perturbation analysis technique, the sensitivity estimate of the performance index with respect to control parameters is derived, and it is proved that the estimate is unbiased.

涂生对机器故障为一般概率分布的不可靠制造系统，提出一种预防阈值控制策略和实现这一控制策略的参数优化方法。

Based on special construction of the design matrix, some interesting relations of variance matrices of the least squares estimate, the best linear unbiased estimate and the TSE are established, and some important properties of the TSE are obtained.

利用模型设计阵的特殊结构，建立了最小二乘估计、最佳线性无偏估计和两步估计的协方差阵的很有用的分解式。

Assuming all samples coming from populations with the same standard deviation σ, the accuracy of estimating σ from observations of different parts influences control limits of target control chart. The dissertation points out shortcoming of traditional standard deviation estimates and proposes a unbiased estimate of σ which results in that the variation of the estimate is minimums and the control limits is set more reliably.

假设不同工件的样本标准方差均来自于同一分布，则以不同工件的样本标准方差对母体标准方差的估计的精确性直接影响了目标控制图控制界限计算的可靠性，本文分析了目标控制图传统的两种母体方差估计方法的合理性或稳健性较差的特点，给出了一种对σ无偏估计的优良方法，从而使这一方差估计量〓的散差最小，则依此最小方差的无偏估计量所得到的控制界限更为精确，更为可靠。

Judgement and Solution Methods of UMVUE ;2. The maximum likelihood estimate and uniformly minimal variance unbiased estimate of MTTF were made on the one-unit system whose lifetime was assumed to be on GAMMA distribution.

讨论寿命服从单参数GAMMA分布单元平均寿命的极大似然估计和一致最小方差无偏估计；应用BASU定理求出了单元可靠度及串联系统可靠度的一致最小方差无偏估计。

Unbiasedness is the property of an estimator, that is, the procedure that can produce an estimate for a specific sample, not an estimate.

估计量是一种方法，该方法使得给定一个样本，我们可以得到一组估计值。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷