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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。

This new algorithm can derive a rheological parameter estimation that shows superior statistic features of fitting residual error unbiasedness and least variance.

该算法不需要人工给定迭代初始值,迭代过程稳定收敛到最小点,不会陷入极小点陷阱,收敛速度很快,所得到的流变参数估计具有拟合残无偏性和方最小的优良统计特征。

To overcome volatility clustering problems,an adaptive neuro-fuzzy inference system is combined with a nonlinear generalized autoregressive conditional heteroscedasticity model that is tuned by adaptive support vector regression so as to tackle the problem of time-varying conditional variance in residual errors.

针对传统的自适应模糊推理系统无法解决波动聚类现象,通过分析自适应模糊推理系统和非线性广义自回归条件方的特性,提出了融合自适应模糊推理系统和非线性广义自回归条件方的调谐模型。调谐模型实质是指在对ANFIS和NGARCH进行独立运行的基础上,对运行结果进行动态调谐操作,从而提高系统的预测精度。最后,结合实际的项目数据,证明调谐模型提高了传统ANFIS对于波动聚类现象的应对能力,获得较好的运行效果

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并不大,因而,在实际应用中,推荐采用贝叶斯法。

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。

The results showed that the water retentiveness of soybean separation protein was the best, followed by casein, and pH value, metal ions such as Ca2+, Mg2+, Zn2+, and Na+, etc. had some effects on the water retentiveness, with effects differed greatly among these factors; the emul...

结果表明:大豆分离蛋白的持水性能较好,其次为酪蛋白,pH值、金属离子Ca2+、Mg2+、Zn2+、Na+等对持水性有一定的影响,呈现较大异;大豆分离蛋白的乳化性能较好,其次为酪蛋白、乳清蛋白,动物蛋白较,在影响乳化性能中金属离子以多价离子为主要因素;大豆蛋白的热稳定性较,酪蛋白和动物蛋白较好。

The properties of soluble molybdenum oxide produced by multiple hearth furnace and reverberatory were analysed and compared.

对两炉型生产的可溶氧化钼性质进行了分析对比,着重从产品颗粒外观形貌分析,找出了反射炉产品均一性及质量稳定性、在氨浸过程中浸出率低、对水洗工艺适应性的原因。

Test results showed that the bionic nonsmooth structures on the tail of the models can obviously reduce the drag due to the pressure drop, especially for the model riblet nonsmooth form, its pressure drag was reduced by 25.3%, and its total drag was reduced by 11.12%.

试验结果表明,布置在尾部的非光滑结构能够有效地降低模型的压阻力,尤其是棱纹状非光滑形态模型,压阻力降低了25.3%,总阻力降低了11.12%。

One is local entropy difference image matching parallel algorithm based on LS MPP, and the other one is local entropy difference image blocking matching parallel algorithm which is designed and realized by strategy combined folding sum, overlay windows mapping, with recurrence calculation column sum and row sum.

一种是基于LS MPP的局部熵图象匹配并行算法,另一种是综合运用折叠求和,叠加窗口映射,递推求列和与递推求行和策略设计并实现的局部熵图象分块匹配并行算法。

When ROWT is more than 1.5, the flow profile becomes dual peak.

和阳模压印时没有明显的高度相比,使用阴模压印时,微结构之间存在较大的高度

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。