...:对数据分布不对称性的度量值。 偏态系数的计算方法有很多,对于未分组数据通常采用下面的公式: 对于分组数据,一般采用下面的公式: 3.2 峰态及其测度 峰态(kurtosis):数据分布的平峰或尖峰程度。 峰态系数(K):对数据分布峰态的度量值。
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kurtosis coefficient 峰度系数 ; 峰态系数
normal kurtosis 正态峰
Coefficient of kurtosis [统计] 峰度系数 ; [经] 峰态系数 ; 内部一致性系数
Excess kurtosis 度峰值 ; 超出峰度 ; 超峰度
platy kurtosis 低峰态
Kurtosis Value 峭度指标
Skewness and Kurtosis 斜度与峰态
kurtosis excess 峰态超越
Coefficients of skewness and kurtosis, belonging to complex cepstrum coefficient of pure and stego speech, are compared and trained for thresholds,which used for blind steganalysis of echo hiding.
通过对原始语音样本和藏密语音样本复倒谱偏度和峰度的学习和训练,分别得到偏度和峰度阈值,并将其用于回声隐藏的盲检测。
参考来源 - 语音隐藏分析方法研究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。
参考来源 - 大电机主绝缘局部放电测量及老化特征研究Moreover, the algorithm can work well in some adverse situations when the kurtosis values of some source signals are very close to each other.
特别是,当有多个源信号的峭度值接近时,也能提取出清晰的源信号,并将其成功应用到直接提取胎儿心电图中,取得了不错的效果。
参考来源 - 独立分量分析算法及其在生物医学中的应用研究In end, we build the model including the risk factor: Unconditional beta, relative condition beta, skewness, kurtosis.
因此最终我们建立的模型中采用的风险因子包括:无条件贝塔、相对条件贝塔、偏度和峰度。
参考来源 - 损失风险溢价:理论与中国股票市场的实证In the light of the high kurtosis, fat tail and lever effect of actual financial returns, the EGARCH-GED model was employed in order to estimate the risk of a portfolio.
针对实际金融数据的尖峰厚尾性与杠杆效应,风险度量采用EGARCH-GED模型。
参考来源 - 非正态假设下投资组合的风险分解·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
N a measure of the concentration of a distribution around its mean, esp the statistic B 2 = m 4/m 2² where m 2 and m 4 are respectively the second and fourth moment of the distribution around the mean. In a normal distribution B 2 = 3 峭度; 峰态 [statistics] → see also platykurtic, mesokurtic, leptokurtic
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。
This paper proposes a new algorithm of video watermarking based on kurtosis and DCT.
提出一种基于峰度的视频水印新算法。
The correlation between the skewness and the kurtosis of the sea surface elevation is also discussed.
文中还讨论了波面偏度和峰度的相关关系。
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