查询词典 estimates

Limiting the alternatives of model by residual variance, together with parameters estimation, the correlation of the estimates matrix, the autocorrelation check of the residuals and the fitting test, can help to search for suitable model quickly and accurately.

通过残差方差定阶法缩小模型选择范围，再结合模型的参数估计、相关系数矩阵、白噪声检验和拟合优度检验最后确定模型的思路，有利于快速准确找到合适的模型。

In chapterⅡ, considering GLMMs data which the number of high units is different and the number of low units is small and unbalanced, we Conduct a series of simulations, the simulations show that regardless of the number of the level 2 units,the Bayesian estimate of random effects residual variance is more precise than PQL and the PQL estimation deviates from the true value seriously; In terms of the fixed effects estimates, When the number of level 2 units is 20, The mean and median of the Bayesian estimate is more precise than PQL,But With the number of level 2 units increase,the estimate of two methods is similar. Thus, in practical applications, we recommend the use of Bayesian method.

第二章针对不同高水平单位数，低水平数较小且不平衡的GLMMs数据，进行模拟研究，研究表明：无论水平2单位数的大小，贝叶斯方法随机效应残差方差估计值远比PQL法更接近真实值，PQL法严重偏离了真实值；而对固定效应参数估计值，当水平2单位数为20时，贝叶斯法各参数的均数和中位数均要较PQL法更接近真实值，而随着水平2单位数的增加，两种方法在估计固定效应参数时相差并不大，因而，在实际应用中，推荐采用贝叶斯法。

Criteria for model comparison were residual variance estimates, minus two log likelihood function, Akaike's information criterion, Bayesian information criterion, Bayesian factor, information-theoretic measure of model complexity, and percent relative reduction of complexity.

模型的统计标准有总剩余方差、似然函数对数值、Akaike信息尺度、贝叶斯信息准则、贝叶斯因子、模型复杂性尺度和复杂性相对下降率。

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。

Why such a large revision in the estimates of China's economic condition?

为什么这么大的修改，在估计中国的经济状况？

They avoid the Riccati equation and the computation of the optimal initial state estimates so that reduce the computational burden.

它们避免了Riccati 方程和最优初始状态估值的计算，因而可减小计算负担。

If you need to ship your car, ruck, RV, motorcycle or boat, we also provide Christian access to free estimates from auto transport companies .

如果你需要你的车船、车、风疹、摩托车或船，也提供免费的估计汽车运输公司。

Salah estimates his earnings are double what they would be in the West Bank, if he even found a job there.

萨拉赫估计他的收入都翻了一番，他们将在约旦河西岸，如果他甚至找到了工作那里。

There are several drawbacks to this - including the rather salient point that the low earnings threshold means estimates are probably overstated.

不过，在这方面还存在几个障碍--其中一个很明显的问题是，低收入门槛意味着上述估计可能有些夸大。

Hierarchical linear modeling is the most frequently used technique for analyzing multilevel data. In this paper, the twelve key issues in multilevel research and/or using HLM software were reviewed, and provided their exact meanings and feasible solutions. The 12 key issues included intraclass correlation coefficient, sample sizes, formation of organizational constructs, centering problems, fixed effect and random effect, estimation methods, goodness of fit index, explained variation, multicollinearity, robust standard error, level one variance equation, and empirical Bayes estimates.

本文针对阶层线性模式在多层次研究上有关於技术、测量与方法论所遭遇的问题，进行文献整理并讨论其实务意涵，并依据使用时机、抽样议题、资料汇总、分析方法、与模式评估与估算等五方面整理出十二项重要议题与解决之道，包括：组内相关系数的意义与判断准则、多层次研究各层的样本数问题、变数聚合成组织层次问题、中心化的意义、固定效果与随机效果的设定、估计法的选择、适配度的比较、解释变异量的计算、多元共线性的分析、强韧性标准误、第一层误差项变异数与实证贝氏估计值的运用。

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。