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- Kurtosis is an eigenvalue of normal distribution of the image. 峰度是一个能表征图像是否呈正态分布的特征值。
- As to skewness, it is not as important as kurtosis in affecting subadditivity. 模拟结果显示,只有在非常高的峰态下风险值是违反次加性,而目前常见的财务资料的分配并不具有如此高的峰态。
- Kurtosis is a classical measure of non-Gaussianity of random variable. 峭度是随机变量非高斯性的一个经典度量。
- Reconstruction project design of adjusted the boiler of Kurtosis in Jinzhou Hot and Heat Co. 锦州热电总公司调峰锅炉房汽机配套改造工程设计。
- When we measure the kurtosis of a distribution, we are measuring its peakedness. 度量一条频率分布曲线的尖削度就是度量其顶部的峰态。
- When the modified kurtosis is maximized, the estimate of the range shift is obtained. 分析表明该算法具有良好的抗闪烁性能和抗噪性能。
- However, under the kurtosis range of current empirical financial studies, the violation does not exist. 因此,适合用来检查在不同的峰态与偏态下风险值的次加性是否违反。
- In addition, maturity and volatility will alter the pattern skewness and kurtosis influence convertible bond value. 除此之外,存续期间和标的资产价格波动度也会改变偏度和峰度影响转换公司债价格的形式。
- The normalized kurtosis extracted from the decomposed results was composed of the feature vectors. 利用主要频率区间的特征向量进行单一传感器的目标识别。
- Because of the characteristic of paleosol's distribution of double-apices, the differences between high-order skewness and kurtosis are obvious. 偏态注重粒度分布的尾部,峰态关注峰的宽窄,且由于古土壤呈明显的双峰分布,因而高阶偏态和峰态差异显著。
- As regards Sk (bias angle) and Kg (kurtosis) values, the fluvio-lacustrine facies or palaeosols increases considerably compared with the aeolian sands. 就Sk和Kg变化而言,河湖相或古土壤值较之风成砂明显增高,前者呈正偏,后者常常表现近对称分布,仅少数呈负偏。
- This paper proposes an algorithm for Fetal Electrocardiogram (FECG) extraction, which is based on joint maximization of kurtosis and autocorrelation. 针对胎儿心电图提取问题,提出了一种基于峭度和自相关函数联合最大化的算法。
- Our study suggests a relation between the excess kurtosis, the market order flow and the tendency of market participants to imitate each other. 该模型能较好地刻画投资主体之间的微观联系机制,并很好地解释股票收益的厚尾特性。
- Then, the amount of the range shift between two echoes is searched by using the modified kurtosis as the alignment measure. 当两回波和包络的修正峰度达到最大时,以此时的距离偏移量进行补偿,就可将回波对齐。
- This thesis proposes a skewness and kurtosis correction (SKC) method to set up Xbar and R control charts for process monitoring. 传统投资组合理论大多假定股票报酬率服从常态分配,然而,近年来有研究指出个别股票的报酬率分配呈现正偏型态。
- Results show that the range alignment algorithm based on maximum modified kurtosis can estimate range shifts and fulfills range alignment. 结果表明,基于最大修正峰度的距离对准算法可以准确地估计出回波的距离偏移量,实现距离对准。
- Based on Kurtosis Maximization Algorithm (KMA), a new cost function is defined by introducing the cross-correlation of two signals. 该方法在最大峰度算法(KMA)的基础上,引入信号的互相关约束定义了一种新的代价函数。
- The kurtosis based ICA approach is analyzed particularly and the geometrical explanation of this approach is presented in the paper. 对基于峰态绝对值最大化的ICA原理进行了详细分析,给出了该原理几何解释和适用范围。
- The skewness and kurtosis have close relation with aging process, which skewness decrease and kurtosis increase with the aging time. 局部放电统计参数偏斜度和峭度与老化程度有密切的关系,老化程度越严重,偏斜度越小,峭度越大。
- As a new statistical moment, the rectified skewness is as effective as kurtosis, and it is lesser susceptibility to spurious vibration than kurtosis. 修正歪度具有和峭度相似的性质,也可以作为幅域诊断参数,并且具有敏感性小的优点。