查询词典 likelihood

The real-time learning ability and the fast convergence of the recurrent network model of nonlinear dynamical system have been obtained by introducing the forgetting factor in the objective function and the maximum likelihood estimation principle.

本算法在目标函数中引入了遗忘因子，并借助于非线性系统的最大似然估计原理成功地解决了动态非线性系统回归神经网络模型权系数学习的实时性和快速性问题。

Currently, a rich variety of evolutionary tree reconstruction methods have been developed, which fall into three categories, distance based methods, maximum parsimony methods and approaches applying the maximum likelihood principle.

一个可靠的进化树推断不仅有助于了解生物的进化历史和进化机制，而且对生物医药学、计算分子生物学其他分支的研究具有重要意义。

Experiments are made for syntactic and semantic score using maximum likelihood principle and k best method,experimental results show that for training se...

对于句法语义评分，使用最大可能原理和K best方法进行实验，实验结果表明：对于训练集和测试集，两种方法在考虑一个左上文或一个左右上下文时都比不考虑上下文的正确率高。

Based on the assumption that wavelet coefficients obey Generalized Gaussian Distribution, this paper adopts Maximum Likelihood principle to estimate wavelet coefficients variance of common images in sub-bands.

摘要基于小波系数服从广义高斯分布，该文采用最大似然准则估计普通图像在子带上的系数方差。

Based on the Maximum Likelihood receiver principle,Coherent-Noncoherent integration is analyzed. It has serious square loss Characterization, especially in real data. Differentially coherent integration algorithm which is frequently used in spread spectrum communication is analyzed in detail for high sensitivity signal detection.

基于最大似然接收机原理，详细分析了相干-非相干(Coherent-Noncoherent)积分算法，表征出该算法在高灵敏度条件下由于非相干次数增加带来的平方衰减，实测数据的分析证实了这个问题更为严重。

One point method, mean square curve method and the maximum likelihood principle to predict P-S-N curve for welded steel structures for arbitary survival rate are presented.

本文建立了任意存活率下焊接钢结构P-S-N曲线预测的一点法，均方差曲线法极大似然法。

The constants in the curves are estimated by a mathematical programming method to be in agreement with the maximum likelihood principle. Availability of the approach has been indicated by an analysis of the S-N data of 45＃ carbon stell-notched specimens (kt=2.0) subjected to fully reversed axial loads.

曲线中的材料常数按极大似然原理采用数学规划法求出。45＃碳钢缺口试样kt＝20）对称循环加载试验数据的分析说明了方法的有效性。

However, for hill-climbing strategies to be guaranteed to find the global optimum the optimality landscape must be unimodal. Moreover, research has demonstrated that multiple maxima exist under the maximum likelihood principle. Therefore, hill climbing based evolutionary tree reconstruction methods often return local optima.

但是由于进化树的似然函数通常含有多个局部极优解，而爬山算法没有逃离局部极优的能力，因此基于爬山算法的进化树构建算法很容易陷入局部极优。

Considering the real speech mixture model could be nonlinear-convolution mixture model, the author presents a new nonlinear speech separation algorithm by utilizing the Finite Impulse Response neural network and the GMM pdf estimation, based on the feedback architecture and the Maximum Likelihood principle.

考虑到真实多通道语音分离系统的输入混合语音有可能是不同语音源信号的非线性混合而不是简单的线性混合，基于反馈结构，采用GMM概率密度函数估计方法，作者提出了一种采用有限冲激响应神经网络的非线性、卷积混合盲信号处理语音分离批处理新算法。

The present invention relates a method and apparatus for receiving signal in MIMO CDMA system, charactered in that: on transmitting side, transmit signal by at least two antennas; on receiving side, receive at least one antenna, and obtaining channel paraneters by estimation of channel, using the channel parenters and maximum likelihood principle into MIMO+CDMA system, solving the problem of receiving signal in multiple mobile environment in effect.

本发明为一种基于MIM0 CDMA的接收方法及装置，其特征在于，发射端：至少采用两个发射天线发射信号；接收端：至少采用一个接收天线接收发射天线发射的信号，并且通过对信道的估计获得信道参数，采用该信道参数和最大似然原理的步骤得到输出信号。本发明将ML原理应用于MIMO+CDMA系统中。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。