峰度系数 meaning in English

coefficient of excess
coefficient of kurtosis
kurtosis coefficient

Coefficient of kurtosis
峰度系数
We evaluate the statistical visibility of information hiding algorithms based on the coefficient of kurtosis , differential entropy , goodness of fit test and kullback entropy . on these bases some methodologies are suggested to defend against statistical steganalysis
重点研究了含密序列统计可见性的定量评估，提出了基于峰度系数和微分墒的偏态评估、基于拟和优度检验的统计可见性评估和基于鉴别信息的统计可见性评估。
The resuts showed that the annual average temperature had an increasing trend ; summer , autumn and winter average temperature also had an increasing trend and the amplitude in winter was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients of skewness were positive value during summer and autumn ; the kurtosis coefficients were bigger during winter
得出如下结论：和田地区年气温有增加的趋势；夏季、秋季、冬季气温也有增加的趋势且冬季气温值增幅较大；标准差及变差系数都是冬季变化较为剧烈；偏度系数在夏季及秋季为正值；峰度系数值在冬季较大。