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Single bit and multi-bit random errors in a data block can be forward corrected with a simple cyclic redundancy check code.

出现差错的符号主要分布在对数似然比绝对值较小的若干符号之中,可以利用这一特性实现差错符号的定位。

Summary receiver operating characteristic analysis demonstrated better discriminatory power for MRCP than for US and CT, and better discriminatory power for US than for CT.

同时按病变部位、性质分别计算MRCP、US及CT的敏感度、特异度和似然比等指标,比较显著性检验统计学方法采用χ〓检验或精确概率法,p<0.05为有显著性差异。

It is shown that The asymptotic null distribution of the modified likelihood ratio test proposed is derived and found to be relatively simple and easily applied.

最新的文献表明这个提出的修正似然比检验统计量在零假设下的渐近分布是比较简单,并且是容易应用的。

Based on the energy sensing, there are cooperative spectrum detection algorithms such as AND model, OR model, counting model, double threshold model, likelihood ratio model, linear cooperation model, and Distributed Wireless Communications System model.

基于能量检测,协作频谱检测的算法主要有:与算法、或算法、计数算法、分区算法、似然比算法、线性加权算法和分布式无线通信系统算法。

Firstly, the equivalency of case deletion model and mean-shift outlier model is investigated; and several diagnostic measures, such as Cook distance, generalized leverage, residuals, and likelihood ratio statistics et al., are obtained. Secondly, we investigate the local influence for the models, several commonly-used perturbed models are studied, and the close forms of influence matrices are obtained. At last, a real example illustrates that our method is available.

首先,证明了均值漂移模型与删除模型的等价性,并得到了残差、Cook距离,似然比统计量等诊断统计量;其次研究了该模型的局部影响分析,得到了局部影响分析的曲率度量;并分别对常见的扰动模型进行分析,得到了计算影响矩阵的简洁公式;然后,通过实例验证了方法的可行性。

Using GLR to count the statistic distance, namely the generalized likelihood ratio statistics distance, is reasonable partition to the reverberation data, after partitioning, the neighboring two sections of reverberation data may be partial steady.

采用GLR统计距离,即广义似然比统计距离的方法,合理的对混响数据进行分段,分段后相邻两段混响数据可认为是局部平稳的。

The main content of preparation before scoring is selection of characteristics, which mainly uses Logistic regression, contingency table analysis and artificial neural network. Personal credit scoring and evaluation mainly uses general discriminant analysis, refined decision tree model, improved genetic algorithm, probability neural network and behavioral scoring model. The effect test of personal credit scoring includes fitting effect test and fitness test. The former involves right prediction rate, Kappa consistency test, ROC curve, and the latter includes likelihood ratio test, Hosmer-Lemeshow test, etc.

评分前的准备工作主要是特征变量的筛选,其中使用的主要方法为Logisitic回归、列联表分析和人工神经网络;本文使用的个人信用评分与评估方法为广义判别分析、精练决策树模型、改进遗传算法、概率神经网络和行为评分模型;个人信用评估的效果检验包括拟合效果检验和拟合优度检验两个方面,前者涉及的方法有预测的正确率、Kappa一致性检验、ROC曲线,后者主要包括似然比检验、Hosmer-Lemeshow检验等。

The former involves right prediction rate, Kappa consistency test, ROC curve, and the latter includes likelihood ratio test, Hosmer-Lemeshow test, etc.

评分前的准备工作主要是特征变量的筛选,其中使用的主要方法为Logisitic回归、列联表分析和人工神经网络;本文使用的个人信用评分与评估方法为广义判别分析、精练决策树模型、改进遗传算法、概率神经网络和行为评分模型;个人信用评估的效果检验包括拟合效果检验和拟合优度检验两个方面,前者涉及的方法有预测的正确率、Kappa一致性检验、ROC曲线,后者主要包括似然比检验、Hosmer-Lemeshow检验等。

Finally, the wind velocity data of Nantong observatory are used to verify the methods above-mentioned, and the likelihood ratio method and Kolmogorov statistic are used to test the fitness of the distribution, It is obtained that the distribution of yearly extreme wind velocity of the observatory is in keeping with Frechet distribution, and the experimental distribution form from samples basically coincides with the theoretical ones.

采用南通气象观测站的年最大风速资料进行实证研究,分别用似然比法和Kolmogorv统计量检验分布的拟合优度,得出南通气象观测站年最大风速符合Frechet分布,而由样本值构造的经验分布与理论分布曲线基本相吻合。

Convergence supper martingal and analytical method, a strong limit theorem for Laplace distribution is obtained.

利用似然比构造几乎处处收敛的上鞅,结合分析方法,给出了 Laplace分布的一个强极限定理。

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