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maximum likelihood method中文是什么意思

  • 极大似然法
  • 极大值然法
  • 最大似或然法
  • 最大似然法
  • 最大相似法

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  • 例句与用法
  • Maximum likelihood method
    最大似然法
  • Research on application of modified maximum likelihood method in wave field overlapped by incident and reflected waves
    改进的最大似然法在入反射波合成波浪场中应用研究
  • There are three frequently used method : distance method , maximum parsimony method , and maximum likelihood method
    目前常用的构建发生树的方法有三种,即距离法、最大简约法和最大似然法。
  • Two objects functions were deduced , which of the maximum likelihood method and the conventional bayes " method , with the application of principle of maximum entropy . under the information theory , more applications are provided to those back analysis methods
    论文应用最大熵原理推导了最大似然法和传统贝叶斯法的准则函数,从信息论的角度为这两种反演分析方法的发展开拓了更广阔的应用空间。
  • This paper presents that the directional spectra and the reflection coefficients of the oblique and the multidirectional irregular waves on the co - exist wave field of incident wave and reflected wave have been studied . a modified two - points method is proposed that can be used to calculate the frequent spectrum and reflection coefficient of the oblique waves . for the multidirectional irregular waves , the directional spectra and reflection coefficients are obtained by the modified bayesian directional method and the modified maximum likelihood method
    本文研究了入、反射波共存场中斜向不规则波和多向不规则波波浪场的方向谱和反射系数,对于斜向不规则波频率谱及反射系数的计算提出了一种改进两点法( mtpm ) ,对于多向不规则波方向谱和反射系数的分析,应用了改进的贝叶斯方法( mbdm )和改进的最大似然法( mmlm ) 。
  • Phylogeny analysis is performed with phylip software package and encoding sequence of bdnf gene . the phylogeny trees have been drawn with three different methods ( maximum parsimony method , genetic distance method and maximum likelihood method ) , respectively . the analysis outcomes are not all consistent for the reason that it is closely related to the selected methods and the conservative level of the sequences
    采用不同的统计学分析方法,最大简约法( maximumparsimonymethod ) 、最大似然法( maximumlikelihoodmethod )和遗传距离法( geneticdistancemethod ) ,得到了物种系统发育进化树,但拓扑结构并不完全一致,这是可能是因为分子系统学研究与采用的分析方法和所选基因的保守程度即作为分子标记的可信度密切相关。
  • A new heuristic search method is devised for maximum likelihood method , which first constructs a starting tree , and then through branch swapping searches for trees best resembling the present optimal tree and locates a better tree . repeat this process , till no more better trees are generated or the upper iteration limit is arrived and the program ends
    对最大似然法,改进了一种新的启发式搜索:随机建立一棵初始树,然后通过查看与当前最优树拓扑最近的树,从中寻找更优树,不断地更新当前最优树,直到无法找到更优树或者达到了搜索次数的上限,算法停止。
  • There are mainly two type of algorithms used for spatial spectrum estimation : one is those based on bayesian maximum likelihood method , like the ml ( maximum likelihood ) algorithm , maximum entropy method and etc . , the others are based on the spatial decomposition or projection of correlation matrix , this kind of algorithm include vector characterization method , music ( multiple signal classification ) algorithm , projection matrix method , etc . music is a classical spatial spectrum estimation algorithm that has a super high resolution and is widely used today , however , it cannot estimate doa of signals that are correlated
    空间谱估计的算法大致分两大类:一是基于极大似然估计和最大后验概率估计统计理论的算法,包括:极大似然估计法( ml ) 、最大熵法等;另一类是基于对协方差矩阵进行子空间分解或投影的算法,包括:矢量特征法、多重信号分类法( music ) 、投影矩阵法等。其中, music法是一种经典的空间谱估计主流算法,具有超强的分辨性能,但它无法实现对相干信号进行测向分辨。
  • Abstract according to the defect of the conventional bayes " method in the geomechanical engineering back analysis , expanding bayes " method was established in this paper . with the applications of the probability theory and the mathematical statistics principle , the geomechanical engineering random back analysis objects function was founded based on the aic criterion of the decision information theory and the maximum entropy criterion , a the matching question between the observed information and the previous information of the conventional bayes " method were proposed . in addition , the least square method , maximum likelihood method and conventional bayes " method were unified in form
    本文针对岩土工程反分析中使用的传统贝叶斯法中存在的缺陷,提出了扩展贝叶斯法,从概率论和数理统计的原理出发,建立了基于决策信息论中aic准则和最大熵准则的岩土工程随机反演的准则函数,解决了传统贝叶斯法的观测信息与先验信息的匹配问题,并从形式上完成了目前常用的最小二乘法、最大似然法及传统贝叶斯法准则函数的统一,并可由观测数据的质量和数量进行预测模型的辨识。
  • Before using phase - only algorithm to achieve nulling , estimations of the number of interferential sources and the doa of interferential signals are needed . so , the spatial spectrum estimation basd on the maximum likelihood method ( capon method ) and music algorithm used for detecting the number of interferential sources and the doa of interferential signals are discussed in the second chapter
    在采用phase - only算法进行波束置零之前,需要估计干扰源的方向和个数,因此本文还在第二章介绍了发射数字波束形成中用于测定干扰源个数和方向的空间谱估计法? capon算法和music算法的测向原理,并分析了它们的性能和优缺点。
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Last modified time:Mon, 11 Aug 2025 00:29:56 GMT

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