查询词典 likelihood function

This paper puts forward a long memory stochastic conditional durations model for ultra-high frequency durations series,and provides a kind of spectrum likelihood estimation method.

文章针对股票市场的超高频持续期序列，提出了长记忆随机条件持续期模型，并给出了模型参数的极大谱似然函数估计方法。

Not be to say it is difficult, however the likelihood is unaccustomed.

不是说它难，而是可能不习惯。

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。

Compared with the maximum likelihood estimation which is commonly used for type-I censored data in engineering, the presented method can reach a high precision by simple calculation, and the estimators show best unbiased property with small sample.

与目前工程中常用的极大似然估计(maximum likelihood estimation， MLE)方法相比，文中方法所得估计量不但在大样本而且在小样本情况下也具有最佳无偏性质，且计算简单、精度高，便于工程应用。

Conceived in the 1990s as a hedging tool, CDSs soon took off as a way to speculate on the likelihood of a firm going bust without having to trade its underlying bonds.

信用违约互换作为防止经济损失的工具，产生于90年代。不久，CDSs就成为对某公司破产的可能性进行投机而不必买卖该公司债券的一种手段。

Search failure and study falls in love with failure, the likelihood is our only unfixed way.

寻找失败且学习爱上失败，可能是我们唯一的解脱方式。

This one problem is done not Anacreontic, later possibly more case happen, this capital attraction environment to a place, long-term will say unlikelihood interest, contrary likelihood causes the twist of the system or search those who hire behavior to go grow is dark long.

这一问题搞不明朗，以后就可能有更多的案例发生，这对于一个地方的招商引资环境，长远来讲未必有利，相反可能造成制度的扭曲或寻租行为的潜滋暗长。

And on the basis of discrete method, the paper has constructed a mode choice model of commuter, and the paper has discussed the statistic characteristics of the model from four aspects: Significance test of the variable, model unlikelihood ratio test, Likelihood Ration Index, hit ratio.

从变量的显著性检验、模型似然比检验、优度比指标、命中率四个方面，对模型的统计特性进行分析。

Sequences for each individual were assembled and edited using ESEE 3 0 s. A distance matrix was computed using program DNADIST of PHYLIP(3 57). Unrooted maximum likelihood trees were calculated from program FITCH.Results The amplified CO1 gene of the snail was a fragment of 638 bp in length.

在该地区选 7个点(上游 4个点，下游 3个点)采集钉螺，用CTAB法提取钉螺基因组DNA ，PCR方法扩增CO1基因，纯化后测序，运用ESEE软件排序并比较变异位点，观察各点钉螺的CO1基因单倍体型，运用PHYLIP软件计算遗传距离，绘制基因进化树。

Without the unconscious, there seems little likelihood of the poet escaping his or her own limitations, of coming upon some utterance of the previously unsayable, as Rilke does in The Duino Elegies.

若没有无意识，诗人们几乎很难逃出他们自我的局限性，无法述说曾经不可言说的情感，里尔克的《杜伊诺哀歌》就是一个例证。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样