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Strong Consistency of M Estimator in Linear Model for φ-mixing Samples
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作者 Wang Xue-jun Hu Shu-he +3 位作者 Ling Ji-min Wei Yun-fei Chen Zhu-qiang Wang De-Hui 《Communications in Mathematical Research》 CSCD 2013年第1期32-40,共9页
The strong consistency of M estimator of regression parameter in linear model for φ-mixing samples is discussed by using the classic Rosenthal type inequality. We get the strong consistency of M estimator under lower... The strong consistency of M estimator of regression parameter in linear model for φ-mixing samples is discussed by using the classic Rosenthal type inequality. We get the strong consistency of M estimator under lower moment condition, which generalizes and improves the corresponding ones for independent sequences. 展开更多
关键词 φ-mixing sample m estimator strong consistency
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STRONG CONSISTENCY OF M ESTIMATOR IN LINEAR MODEL FOR NEGATIVELY ASSOCIATED SAMPLES 被引量:5
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作者 Qunying WU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2006年第4期592-600,共9页
This paper discusses the strong consistency of M estimator of regression parameter in linear model for negatively associated samples. As a result, the author extends Theorem 1 and Theorem 2 of Shanchao YANG (2002) t... This paper discusses the strong consistency of M estimator of regression parameter in linear model for negatively associated samples. As a result, the author extends Theorem 1 and Theorem 2 of Shanchao YANG (2002) to the NA errors without necessarily imposing any extra condition. 展开更多
关键词 Linear model m estimator negatively associated sample strong consistency.
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FURTHER STUDY STRONG CONSISTENCY OF M ESTIMATOR IN LINEAR MODEL FOR ρ-MIXING RANDOM SAMPLES 被引量:2
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作者 Qunying WU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2011年第5期969-980,共12页
The strong consistency of M estimators of the regression parameters in linear models for ρ-mixing random errors under some mild conditions is established, which is an essential improvement over the relevant results i... The strong consistency of M estimators of the regression parameters in linear models for ρ-mixing random errors under some mild conditions is established, which is an essential improvement over the relevant results in the literature on the moment conditions and mixing errors. Especially, Theorem of Wu (2005) is improved essentially on the moment conditions. 展开更多
关键词 Linear model m estimator moment condition ρ-mixing random error strong consistency
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基于SIFT特征点匹配的印刷品图像检测方法
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作者 张洁玉 朱近 夏德深 《江南大学学报(自然科学版)》 CAS 2007年第6期850-854,共5页
提出了一种印刷品图像在线检测方法.首先,利用在图像特征点提取领域中运用最为广泛的SIFT(Scale Invariant Feature Transform)算法提取图像稳定特征点,生成特征向量描述符;然后根据向量最近邻(NN)和次近邻(SCN)的距离之比,对匹配点进... 提出了一种印刷品图像在线检测方法.首先,利用在图像特征点提取领域中运用最为广泛的SIFT(Scale Invariant Feature Transform)算法提取图像稳定特征点,生成特征向量描述符;然后根据向量最近邻(NN)和次近邻(SCN)的距离之比,对匹配点进行初步筛选;最后运用M-estimators法估计特征点对间的几何约束模型,利用该模型进一步精选特征点,确定真正的匹配点对个数,将精选后得到的特征点数与初步筛选得到的特征点数的比值作为判断印刷品是否合格的标准.实验结果表明:该方法能够准确地提取出图像特征点,并通过精选特征点能够在很大程度上改善误匹配问题,从而快速有效地检测出错误的印刷品,得到了良好的检测效果. 展开更多
关键词 印刷品检测 SIFT特征点 图像配准 mestimators法 几何约束模型
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