查询词典 likelihood function

An effective algorithm is proposed, which is based on hard-decision for some specially received symbols far away from normal symbols on the constellation. Then according to the distance between received symbols and decoded symbols, the pseudo Log-Likelihood-Ratio is calculated, and taken as the pseudo initialization information for the next iteration.

该算法首先对接收符号星座图中特别奇异点进行硬判决&校正&，然后利用接收符号和译码判决符号在星座图中的距离，在每次迭代前计算符号的伪似然比，作为下次迭代的伪初始信息。

Secondly, estimating long memory stochastic volatility model using the frequency domain quasi maximum likelihood estimation and chaos optimization algorithm, which can improve the efficiency.

使用频域内拟极大似然方法估计LMSV模型参数，为了提高计算效率应用混沌优化算法进行最优搜索。

On the approximate uncorrelation property of DWT coefficients of LMSV process in the same scale and different scales, first the quasi maximum likelihood estimation method of parameters and the estimation method of volatility process of LMSV model are presented.

根据小波变换可将过程分解到不同的尺度上以及LMSV过程同一尺度下和不同尺度下DWT系数的近似不相关性，提出了建立局部似然函数的方法，又根据DWT系数和MODWT系数之间的关系，将局部似然函数表示为模型参数和局部小波方差估计的形式，并用该方法对中国股市收益进行了时变LMSV模型参数的估计。

Third, this study completely derives and proves the asymptotic characteristics and distributions of the quasi maximum likelihood estimators and testing the theoretical performance by Monte-Carlo simulation.

三、本研究基于拟极大似然方法对一类动态空间固定效应模型的参数进行估计，系统地推导和证明了参数估计量的渐近性质和渐近分布；并基于Monte-Carlo模拟实验对估计量渐近性质进行检验。

Then constellation is recovered by dynamic clustering based on similar measurement between samples and kernels and matched by quasi maximum likelihood rule.

然后通过样本与核的相似性度量的动态聚类来恢复信号星座图，利用准最大似然分类准则，完成重构星座图与预期星座图的匹配。

In all likelihood, it is the council that will choose Abdullah's successor, in what might prove to be, even if restricted to a handful of senior princes from the Al Saud family, the first quasi-democratic transition of power in Saudi history.

最具可能性的是，最终将由理事会决定阿卜杜拉的继任者（不论他们做出什么样的选择），即使选择范围被局限在少量来自于阿尔沙特家族的年长王子们，这仍将会是沙特阿拉伯人历史上首次近似民主的权力交接。

After that, we used these mixed distributions to re-estimate the split population duration model; also used the AIC Value, Likelihood Ratio Test, and t-test to compare the quality of different models, and it showed that the mixed split population duration model is better than the single distribution model.

我们以混合机率分配重新估计区分母体持续时间模型，并且以AIC值、概似比检定、t-检定比较各种不同的区分母体持续时间模型的优劣，结果显示混合机率的区分母体持续时间模型优於单一分配的模型。

Experimental results confirm that the performance of the discriminative back-propagation training algorithm is better than that of the traditional re-estimation training algorithm based on maximum likelihood and maximum mutual information.

实验表明，基于HMM的反向传播训练算法的手写体汉字识别器的性能要优于基于传统的Baum-Welch参数估计方法和基于最大互信息准则的HMM参数重估算法的汉字识别器。

Assuming they were adequately treated the first time around, the likelihood is if you re-treat them and you give them exactly the same thing as they had the first time around, the same thing is going to happen the second time around.

假如他们在一开始就进行了充分的治疗，如果你在复治时，给他们服用同起初治疗时一样的药物，那么第二次治疗时情况很可能还是一样的。

In order to obtain higher vacuum degree for condenser, the saturation temperature of steam inside the condenser should approach the temperature of cooling water in all likelihood.

为使凝汽器获得较高的真空度，就要使凝汽器内蒸汽的饱和温度尽可能接近冷却水温度。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。