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maximum likelihood functions
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  极大似然函数
     A new distribution parameters estimation method of the reliability test data of gear is presented in the paper, which combines regression analysis method and maximum likelihood functions method with optimization.
     基于优化理论的原理和特点 ,结合可靠性试验数据分布参数的估计方法——回归分析法和极大似然函数法 ,提出一种新的优化估计方法。
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  “maximum likelihood functions”译为未确定词的双语例句
     The method by using combined confidence level for pion and kaon separation, the D s single and double tagging technology, and the maximum likelihood functions in the estimate of the D s branching fractions are described in details.
     文章详细描述了用于π与K识别的联合置信度方法 ,Ds单标记和双标记技术 ,以及计算Ds 衰变分支比的最大似然函数 .
短句来源
     Methods a dosen nonlinear regression models and its maximum likelihood functions were discribed and some classical examples were analyzed.
     方法 建立各种非线性模型及模型参数的最大似然估计方法。 并附有实例演算。
短句来源
     Methods a dosen nonliear regression models and its maximum likelihood functions were discribed and some classical examples were analyzed.
     方法 建立各种非线性模型及模型参数的最大似然估计方法 ,并附有实例演算。
短句来源
     It describes the heteroskedasticity character of interest rate by projecting the sample data onto the EGARCH(1,1) auxiliary model,makes making the covariance matrix as moment conditions and uses EMM to estimate the parameters. EMM avoids the disadvantage of infeasible or computationally intensive of maximum likelihood functions.
     通过将观测数据映射成EGARCH(1,1)辅助模型描述利率行为的异方差特征,以协方差矩阵为矩条件,用有效矩估计方法得出模型参数,避免了最大似然估计法似然函数不可知或难以求积分的缺陷.
短句来源
     An optimization model for maximum likelihood parameters estimation of reliability life distribution was established based on the principle of the maximum likelihood functions method and theories of optimization in this paper. The model was solved by genetic algorithm,and the key steps,such as code,selection,cross and mutation,and the method of disposing the problem of restriction were given.
     基于极大似然估计法的基本原理和优化理论,建立了可靠性寿命分布参数的极大似然优化估计模型,并采用遗传算法(GA)进行求解,分析了GA在模型求解中的编码、选择策略、交叉和变异等关键步骤,以及约束条件的处理。
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  相似匹配句对
     On Generalized Maximum Likelihood Estimation
     浅论“广义”最大似然估计
短句来源
     Totally Maximum Likelihood Estimation
     完全极大似然估计
短句来源
     is maximum.
     的影响极大。
短句来源
     Maximum Likelihood Estimation of Functions of Parameters
     参数θ的函数f(θ)的极大似然估计
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  maximum likelihood functions
Estimating the values of the parameter estimates of econometric functions (maximum likelihood functions or nonlinear least squares functions) are often challenging global optimization problems.
      


In the engineering field we arc often faced with a problem that from test data is determined a non-linear curve which is strongly non-linear and not expressed by an analytical formula ,c. g. it is absolutely necessaryin aircraft flight test data analysis that from flight test data is determined a polar diagram (curve) which is a basic aerodynamic characteristic curve to calculate a flight performance. The above problem may be included in non-lincar curve identification. In this paper research on a non-linear...

In the engineering field we arc often faced with a problem that from test data is determined a non-linear curve which is strongly non-linear and not expressed by an analytical formula ,c. g. it is absolutely necessaryin aircraft flight test data analysis that from flight test data is determined a polar diagram (curve) which is a basic aerodynamic characteristic curve to calculate a flight performance. The above problem may be included in non-lincar curve identification. In this paper research on a non-linear maximum likelihood-optimization method for identifying the non-linear curve is presented. A general idea of this method is : first the non-linear curve is approached by a suitable function system(e. g. a cubical spline-polynomial);secondly the non-linear curve identification is transformed into a normal parameter identification; thirdly a criterion of a maximum likelihood function is built; finally is established a unified successive iterate procedure that a criterion of the maximum likelihood function is driven into an extreme using an optimization method. This method has a uniqueness and a good astringency of the maximum likelihood method and a capability of solving a non-linear problem by the optimization method. An identified function curve (c. g. a cubical spline function curve) can approach the non-linear curve unlimitedly smoothly. In this paper a fundamental principle of this method and its application to identify above polar curve of an aircraft are presented.

工程上经常碰到非线性曲线辨识问题。本文探讨一种非线性极大似然-优化法并结合三次样条函数拟配法,形成统一的逐次逼近的直接辨识非线性曲线的非线性辨识方法。该法兼有极大似然法的唯一性、很好的收敛性和优化法直接处理非线性系统的能力,辨识出的样条函数曲线能无限地光滑地逼近非线性曲线。

In the paper, the problem of model building for disequilibrium models with time-varlant parameters is discussed. The estimation method of time-varlant parameters for disequilibrium models usin8 maximum likelihood function with optimum moving window is proposed. Simulation example gives good results of this method.

本文讨论了时变参数非均衡模型的建模问题,提出了最优移动窗极大似然函数建模方法,仿真实例表明了本方法的有效性。

The variance of maximum likelihood function of DOA(Direction of Arrival)is derived.According to the relation,the SNR resolution threashold formula of maximum likelihood estimation of DOA is deduced.from which the SNR resolution threshold is analyzed for two sources of different correlativity with the application of uniformly spaced linear array.

本文首先给出了波达方向估计最大似然函数的方差,根据此方差导出了最大似然方向估计的信噪比分辨门限公式,并根据这一公式分析了两信源相关特性不同时的最大似然算法的信噪比分辨门限。

 
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