零階矩 的英文怎麼說
中文拼音 [língjiējǔ]
零階矩
英文
zeroth moment-
It exploits the structured of the hessian matrix of the objective function sufficiently. an attractive property of the structured bfgs method is its local superlinear / quadratic convergence property for the nonzero / zero residual problems. the local convergence of the structured bfgs method has been well established
它們充分利用了目標函數的hesse矩陣的結構以提高演算法的效率，該演算法的顯著優點是對于零殘量問題具有二階收斂性而對于非零殘量問題具有超線性收斂性。Spline curves defined in the space constructed by polynomial and hyperbolic functions are studied in this paper. the main research contents and achievements are as follow : firstly, we generate the cardinal extended complete chebychevian ( ect ) - systems on the space constructed by polynomial and hyperbolic functions, then introduce the algebraic - hyperbolic b - spline space and identify the dimension law and zero properties. the existence of a basis of splines with minimal compact supports is demonstrated, and functions named non - uniform algebraic - hyperbolic b - splines are obtained by solving certain linear equations with a block matrix
本文主要研究定義在多項式和雙曲函數構成的空間上的樣條曲線，其內容和完成結果如下:一、生成由多項式和雙曲函數構成的空間上的一組典範式ect （ extendedcompletechebychevian ）組及其對偶， ，證明非均勻代數雙曲b樣條空間的維數定理和零點定理，直接通過解塊矩陣線性方程組得到具有最小緊支撐的非均勻代數雙曲b樣條函數，進而構造非均勻代數雙曲b樣條曲線，還具體給出低階的表示In this paper, the stability of the trivial solution is studied for a class of third order nonlinear non - autonomous ordinary differential equations by means of differential matrix, and the sufficient conditions of the global asymptotic stability of the trivial solution are obtained for a class of third order nonlinear autonomous system
摘要用微分矩法研究了一類三階非線性常微分方程零解的穩定性，並獲得了一類三階非線性駐定系統零解全局漸近穩定的充分條件。Then 3 kinds of recognition algorithm, including zeroth order moments, gray histogram and color histogram, have been tested for this system
分別用幾何零階矩和圖像的灰度、彩色直方圖的方法進行識別。Form the experiment results, we can see that zeroth order moments method is not appropriate for this reconstruction and recognition system because it discards all the detail information of an image color and texture. however, considering on all pixel color, color histogram is suitable for this recognition system
從模擬結果可以看出，由於零階矩沒有利用圖像的全部顏色細節和紋理信息，識別效果不是很好，而彩色直方圖比較的方法是針對于上述飛機模型庫進行識別的合適的方法。Secondly, using the relation between the weighted modified k - functional, the weighted modulus of smoothness, the weighted main - part modulus of smoothness. we get the pointwise direct and inverse approximation theorem with jacobi weight for s ' zdsz - kantorovich operator. thus some results on w ( x ) = 0 ( w ( x ) denotes the weight function ), ditzian - totik modulus and classic modulus are extend
其次，引入一種改變的帶權k -泛函，利用帶權光滑模和帶權主部光滑的關系及帶權光滑模與改變帶權k -泛函的等價性，關于sz sz - kantorovich運算元，討論了一階矩不為零的運算元的點態帶jacobi權逼近正定理及等價定理，推廣了已有的權為零及ditzian - totik光滑模和古典光滑模的結果。分享友人