1) LL channel
逼近子图
1.
Present a watermarking algorithm based on coherence for utilizing the robustness of spatial watermarking,which can embed watermark with modification of coefficient in LL channel using the domain coherence.
该算法在小波域逼近子图上利用领域系数的相关性来嵌入数字水印,水印可为有含义序列或二值图且提取时不需要原始图像,并利用贝叶斯分类器来提高提取准确度。
2) Binomial Tree
树图逼近
1.
Option Pricing:Employing Binomial Tree to Approach B-S-M Formulaand the Compared-Static-Stated Analysis;
期权定价的树图逼近法及期权价格的静态比较分析
4) operator approximation
算子逼近
1.
This paper considers de la vallee -poussin operator approximation continuous functions, gets the following better estimation.
本文考虑delavallee──poussin算子逼近连续函数的较佳估计。
2.
From the functional analysis,the dynamic prediction problem was viewed as operator approximation problem and the operator approximation capability was analyzed and proved.
从泛函分析的角度出发,将动态预测的问题看作算子逼近问题,分析并证明算子逼近能力,进而提出了过程神经网络的动态预测方法,并将时间序列预测问题转化为泛函逼近或算子逼近问题,证明了过程神经网络能以任意精度逼近任意连续算子。
5) Diophantine approximation
丢番图逼近
1.
By Gel’found-Baker method and the theory of Diophantine approximation,this paper discusses all the positive integer solutions of the Pell equations x~2-7y~2=2,32y~2-z~2=23,namely(x,y,z)=3,1,3),(717,271,1533).
利用Gel'found-Baker方法以及丢番图逼近的有关理论,证明了Pell方程组x~2-7y~2=2,32y~2-z~2=23仅有正整数解(x,y,z)=(3,1,3),(717,271,1533)。
2.
In this paper,a simple theorem and a number of important corollaries on Diophantine approximation of an irrational number are obtained.
得到关于无理数的丢番图逼近的一个定理和一系列重要推论,指出并订正了文章“Dionhantine Approximation of a Single Irrational Number”(J· NumberTheory,35(1990),55~57)中的一个错误。
3.
Jingcheng Tong gives a lemma and a theorem of Diophantine approximation of an irrational number in [1].
Jingcheng Tong在[1]中给出了无理数的丢番图逼近的一个引理和一个定理。
6) Spectrum approximation of compact operators
算子谱逼近
补充资料:图的减缩图(或称图子式)
图的减缩图(或称图子式)
minor of a graph
图的减缩图(或称图子式)【.皿以ofa脚户;MHHoPrpa中a」【补注】设G是一个图(graph)(可以有环及多重边).G的一个减缩图(nullor)是从G中接连进行下述运算而得的任何一个图: i)删去一条边; 五)收缩一条边; 说)去掉一个孤立顶点. NRobe由on与P.D.Se脚aour的图减缩定理(脚Ph nl的。r theon习11)如下所述:已知有限图的无穷序列G,,GZ,…,则存在指标i
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条