查询词典 estimation of parameter

Results:The uncertainty of parameter estimation and the difficulty in explaining the outcome due to the multicollinearity in mult-regression analysis are removed.

结果：消除了多元回归分析中由于共线性产生的参数估值不稳定性及结果中不好解释的现象。

With this approach,the selection of weights and the estimation of approximation order simply depend on a parameter w.

该法适用于任意次数的有理Bezier曲线/面、任意的控制多边形/网格，权因子的选择和逼近度的估计都只依赖于一个参数w。

By applying the accumulative method which is a new technique for fitting a curve to parameter estimation of GM (0, N), it avoids complicated matrix operation, reduces operation time and keeps high accuracy and many model characters. Thus it is of great benefit to practical application.

通过将累积法这种新的曲线拟合技术引入到GM（0，N）模型的参数估计之中，避免了复杂的矩阵运算，减小了运算量，同时精度高且不改变模型的许多性质，对于实际应用有一定的意义。

The acquisition of the point spread function is the key point in non-blind restoration algorithms for image, it's very important to get the estimation of point spread function parameter.

在图像的非盲复原算法中，点扩展函数的获取是算法的关键，因而点扩展函数参数估计是图像复原中重要的一步。

In chapter three, because of need data packet in the process of parameter estimation, but M-step involved the posterior probability calculate, it increases the computing complexity and affects the efficiency of the algorithm.

在第三章中，由于用EM算法在混合模型参数估计中涉及到运用后验概率密度实现数据分组，加大了计算的复杂度，影响了算法的效率。

Methods: Using the time series of cucumber downy mildew disease, we established an autoregressive integrated moving average model, ARIMA(2,2,0) based on model identification, comparison of residual variance, estimation and verification of parameter, observation of the correlation of the estimates matrix, autocorrelation check of the residuals, analysis of the fitting of model and so on.

采用黄瓜霜霉病病情指数时间序列进行研究，通过模型识别、残差方差比较、参数估计及其检验、观察参数之间相关系数矩阵、白噪声检验、模型的拟合度分析等过程。

Parameter estimation of radar target scatterer plays an important role in the process of target characteristics analysis and target recognition.

摘要雷达目标散射中心的参数估计对目标特性分析和目标识别有重要意义。

To aim at parameter estimation of signal to noise ratio and high variance in low SNR based on time frequency distribution, this paper proposed a novel algorithm based on multimodal particle swarm optimization.

针对基于时频分布的参数估计存在信噪比阈值和低信噪比下方差大的问题，提出了一种基于多峰优化粒子群算法的跳频信号参数估计新算法。

A reformative multiple model approach is presented to improve the accuracy of parameter estimation when the model set is too large, and it is used to identify system noise.

针对模型集过大导致的参数估计精度下降的现象，提出了一种改进的多模型算法，并将该算法应用于系统噪声辨识。

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。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。