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- Kurtosis is an eigenvalue of normal distribution of the image. 峰度是一個能表徵圖像是否呈正態分佈的特徵值。
- As to skewness, it is not as important as kurtosis in affecting subadditivity. 模擬結果顯示,只有在非常高的峰態下風險值是違反次加性,而目前常見的財務資料的分配並不具有如此高的峰態。
- Kurtosis is a classical measure of non-Gaussianity of random variable. 峭度是隨機變數非高斯性的一個經典度量。
- Reconstruction project design of adjusted the boiler of Kurtosis in Jinzhou Hot and Heat Co. 錦州熱電總公司調峰鍋爐房汽機配套改造工程設計。
- When we measure the kurtosis of a distribution, we are measuring its peakedness. 度量一條頻率分佈曲線的尖削度就是度量其頂部的峰態。
- When the modified kurtosis is maximized, the estimate of the range shift is obtained. 分析表明該演算法具有良好的抗閃爍性能和抗噪性能。
- However, under the kurtosis range of current empirical financial studies, the violation does not exist. 因此,適合用來檢查在不同的峰態與偏態下風險值的次加性是否違反。
- In addition, maturity and volatility will alter the pattern skewness and kurtosis influence convertible bond value. 除此之外,存續期間和標的資產價格波動度也會改變偏度和峰度影響轉換公司債價格的形式。
- The normalized kurtosis extracted from the decomposed results was composed of the feature vectors. 利用主要頻率區間的特徵向量進行單一感測器的目標識別。
- Because of the characteristic of paleosol's distribution of double-apices, the differences between high-order skewness and kurtosis are obvious. 偏態注重粒度分佈的尾部,峰態關注峰的寬窄,且由於古土壤呈明顯的雙峰分佈,因而高階偏態和峰態差異顯著。
- 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變化而言,河湖相或古土壤值較之風成砂明顯增高,前者呈正偏,後者常常表現近對稱分佈,僅少數呈負偏。
- This paper proposes an algorithm for Fetal Electrocardiogram (FECG) extraction, which is based on joint maximization of kurtosis and autocorrelation. 針對胎兒心電圖提取問題,提出了一種基於峭度和自相關函數聯合最大化的演算法。
- Our study suggests a relation between the excess kurtosis, the market order flow and the tendency of market participants to imitate each other. 該模型能較好地刻畫投資主體之間的微觀聯繫機制,並很好地解釋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. 當兩回波和包絡的修正峰度達到最大時,以此時的距離偏移量進行補償,就可將回波對齊。
- This thesis proposes a skewness and kurtosis correction (SKC) method to set up Xbar and R control charts for process monitoring. 傳統投資組合理論大多假定股票報酬率服從常態分配,然而,近年來有研究指出個別股票的報酬率分配呈現正偏型態。
- Results show that the range alignment algorithm based on maximum modified kurtosis can estimate range shifts and fulfills range alignment. 結果表明,基於最大修正峰度的距離對準演算法可以準確地估計出回波的距離偏移量,實現距離對準。
- Based on Kurtosis Maximization Algorithm (KMA), a new cost function is defined by introducing the cross-correlation of two signals. 該方法在最大峰度演算法(KMA)的基礎上,引入信號的互相關約束定義了一種新的代價函數。
- The kurtosis based ICA approach is analyzed particularly and the geometrical explanation of this approach is presented in the paper. 對基於峰態絕對值最大化的ICA原理進行了詳細分析,給出了該原理幾何解釋和適用範圍。
- The skewness and kurtosis have close relation with aging process, which skewness decrease and kurtosis increase with the aging time. 局部放電統計參數偏斜度和峭度與老化程度有密切的關係,老化程度越嚴重,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質,也可以作為幅域診斷參數,並且具有敏感性小的優點。