kurtosis
英
美
n. （统）尖削度; （曲线的）峰态；峭度；突出度（分布曲线中的高峰程度）
COCA.36216
双语例句
- 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。 - 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。 - Kurtosis can be interpreted as a measure of the presence of a gambling element, as the higher the probability of an extreme outcome, the more the investment resembles a straightforward gamble.
峰度可以理解为对一个投资中赌博成分高低的衡量，因为极端结果发生的概率越高，该项投资就越像是一个纯粹的赌博。 - Jointed the constant module ( CM) character of digital modulated signal, the CM generalized kurtosis algorithm is deduced.
并结合调制信号的恒模特性，提出了基于广义峭度的恒模盲信号提取算法。 - Broadly speaking, skewness measures whether there is a relatively high probability of a nasty ( negative skewness) or pleasant ( positive skewness) surprise, while kurtosis measures the probability of an extreme outcome, either positive or negative.
广义说来，偏斜度衡量的是出现负面意外结果（负偏斜度）或惊喜意外结果（正偏斜度）的相对概率，而峰度衡量的是出现极端结果（或正面或负面）的概率。 - The current hype over hedge funds provides a good example of how dangerous it can be to ignore skewness and kurtosis.
当前的对冲基金热，很好地说明了忽视偏斜度和峰度会有多么危险。 - Skewness and Kurtosis Test of Normal Distribution for Target Detection Precision
目标探测精度正态分布偏峰度检验设计及应用 - A Normalized Kurtosis based Voice Activity Detection Method under non-Gaussian noise
一种基于归一化峰度的抗非高斯噪声语音VAD检测方法 - Gradient Algorithm for Sequential Extraction of Independent Component Based on Kurtosis
基于峭度的独立分量逐次提取梯度算法 - This result supports the authors viewpoint about kurtosis statistical meanings: kurtosis is a kind of measure of population datas degree of outlier.
该结论支持了作者关于峰度统计意义的观点：峰度是衡量总体数据离群度的特征量。 - Blind equalization algorithm of short-wave channel based on kurtosis criterion and decision directed algorithm
基于最大峰度准则和判决引导的短波信道盲均衡算法 - Research on vegetation chlorophyll concentration retrieval model based on kurtosis and skewness of hyperspectral curve
基于高光谱曲线峰度、偏度的植被叶绿素含量反演模型研究 - Unfortunately, when skewness and kurtosis are taken into account, this need not be the case.
不幸的是，一旦把偏斜度和峰度考虑进去，事实就并非如此了。 - A portfolio selection model with transaction costs under the constraint of higher moments such as skewness and kurtosis was discussed.
讨论了有交易费用的、包括偏度和峰度在内的高阶矩约束的多目标最优投资组合选择模型。 - Fetal Electrocardiogram Extraction by Combing Kurtosis and Temporal Structure
联合峭度和时序结构的胎儿心电提取 - In that case, there is no true free lunch as the investor pays for a lower standard deviation by accepting less appealing skewness and/ or kurtosis characteristics.
在这种情况下，真正意义的免费午餐就不存在了，因为投资者以接受没有什么吸引力的偏斜度和/或峰度特征为代价，买下的却是标准差较低的资产。 - Practically, the application of options implied second moment, implied volatility, is very popular, but the study of implied third moment, skewness, and fourth moment, kurtosis, is seldom.
实务上，选择权价格所隐含之二阶动差（即波动率）应用得非常普遍，但有关所隐含三阶动差（偏态）及四阶动差（峰态）之研究则较为少见。 - Study on FECG Extraction Algorithm Based on Autocorrelation and Kurtosis
基于自相关函数和峭度的FECG提取算法研究 - Based on the characteristic of WM signals, a step by step classification method using high order cumulants and kurtosis of power spectrum as features is proposed.
根据小波调制信号的特点，以信号高阶累积量与功率谱峰度为特征参数，采用分步识别的方法对小波调制信号进行了识别。 - A new method for extracting weak impulse characteristic based on a sliding kurtosis algorithm
基于滑动峰态算法的信号弱冲击特征提取及应用 - Based on constrained independent component analysis, a fast algorithm for one-unit ICA-R is proposed when absolute value of kurtosis is considered as contrast function in this paper.
基于约束独立成分分析理论，以峭度的绝对值为对比函数推导出一种快速一单元ICA-R算法。 - The skewness and kurtosis properties of some hedge fund strategies are definitely more attractive than others.
某些对冲基金策略的偏斜度和峰度特性，肯定会比其它策略更有吸引力。 - Thus the fire electricity units of greater capacity are demanded to participate in the kurtosis modulation running.
这就要求大容量火电机组要参与调峰运行。 - Based on the signal kurtosis, a blind signal extraction algorithm was proposed in over-determined mixtures.
基于信号峭度理论，提出一种超定条件下的盲信号提取算法。 - Nonlinear Futures Hedging Model Based on Skewness Risk and Kurtosis Risk
考虑偏度风险和峰度风险的非线性期货套期保值模型 - Application of Blind Signal Extraction to Radar Signal Sorting Based on Kurtosis
基于峭度的盲抽取技术用于雷达信号分选 - This paper presents a new method for rolling bearings fault diagnosis using the combination of spectral kurtosis ( SK) algorithms and adaptive genetic algorithm ( AGA).
结合谱峭度法和自适应遗传算法，提出滚动轴承故障诊断的一种新方法。 - A code-constrained Constant Modulus Algorithm ( CMA) initialized by delay-hypothesized matched filter based on minimum kurtosis criterion is proposed in this paper.
提出一种基于最小峭度准则初始化的码约束盲恒模算法。 - Based on maximum kurtosis criteria, a new blind identification and equalization algorithm is designed for linear system.
根据最大峰度准则设计了一种针对线性系统的盲辨识与盲均衡算法。 - 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。