搜索结果: 16-30 共查到“知识库 误差分析”相关记录33条 . 查询时间(3.801 秒)
Large deviation results for Multitype Galton-Watson trees
Tree-indexed Markov chain Tree-indexed process random tree
2010/12/7
Using the notion of consistency of empirical measures, under fairly general assumption we
prove a joint large deviation principles in n for the empirical pair measure and empirical
offspring measure...
Entanglement can increase asymptotic rates of zero-error classical communication over classical channels
asymptotic rates of zero-error classical classical channels
2010/12/15
It is known that the number of di erent classical messages which can be communicated
with a single use of a classical channel with zero probability of decoding error can sometimes
be increased by us...
Large deviations for renewal processes
Large Deviations Renewal Process Cumulative Process
2010/12/6
We investigate large deviations for the empirical measure of the forward and backward recurrence time processes associated with a classical renewal process with arbitrary waiting-time distribution. Th...
Large deviations of the empirical currents for a boundary driven reaction diffusion model
Large deviations Interacting particle system
2010/11/29
We derive a large deviation principle for the empirical currents of lattice gas dynamics which combine a fast stirring mechanism (Symmetric Simple Exclusion Process) and creation/annihilation mechanis...
Error bounds for small jumps of Lévy processes and financial applications
Approximation of small jumps L´ evy processes Skorokhod embedding
2010/12/16
The pricing of exotic options in exponential L´evy models amounts to the computation of expectations of functionals of the whole path of a L´evy process. In many situations, Monte-Carlo me...
一维大气污染模型的特征-块中心差分法
大气污染模型 特征-块中心差分法 误差估计
2012/2/23
将特征-块中心差分法应用于一维大气污染模型中,求得非均匀网格上污染物浓度及其对空间变量的一阶导数项的差分解和误差估计,此法的计算量与基于线性插值的特征差分法相当,其近似解与基于二次插值的特征差分法的近似解有相同阶的误差估计。最后,通过数值实验说明了该方法的可行性和有效性。
酉空时码特别适用于多天线差分调制的通信系统. 本文基于两类适用于3天线系统的满分集的酉空时码给出了一个新的构造方案. 由于新方案构造的酉空时码是满分集的, 适用于天线数为奇素数的系统, 而且与很多已知的码相比, 具有更优的增益性能.
An Edge-based Anisotropic Mesh Refinement Algorithm and its Application to Interface Problems
Adaptive finite element method Anisotropic mesh refinement El- liptic interface problem Non-homogeneous jump A posteriori error estimate
2015/5/6
Based on an error estimate in terms of element edge vectors on arbitrary unstruc-tured simplex meshes, we propose a new edge-based anisotropic mesh refinement algorithm. As the mesh adaptation indicat...
由重构矩阵存储精度引起的波前重构误差的研究
波前重构 数据精度 重构精度
2009/1/6
采用Southwell区域法波前重构模型对泽尼克多项式的前几项进行了波前重构的数值模拟, 研究了由重构矩阵存储精度原因而引起的波前重构误差。结果表明,对于前六项,以8Bit的数据精度来存储重构矩阵就能保证波前重构误差不超过1.0%,而对于具有更高阶的泽尼克多项式,比8Bit更高的数据精度不会使误差减小。对一个测量所得的波前进行了研究,所得结果和上述结论相符合。
相依误差近似回归模型的稳健设计(英文)
稳健设计 再生核Hilbert空间 相依误差
2008/12/2
利用再生核空间方法研究相依误差近似回归模型的稳健设计问题.假定模型偏差来自概率测度为P的函数类H,同时还假定不同试验所产生的误差不独立.采用广义最小二乘估计作为参数向量的估计,根据平均预测风险最小原理得到了一个稳健设计准则.数值例子表明由该准则得到的设计具有良好的稳健性.
一类自逆变换的误差分析
误差分析 自逆变换
2008/12/2
进一步讨论初等自逆变换 S=I-uv~T,S~(-1)=S。给出经相似变换化阵为 Hessenberg 型的初等自逆阵的一般形式,并对其中一类自逆变换阵进行了误差分析,讨论了单边和双边变换的误差界限。
Four primal discontinuous Galerkin methods are applied to solve
reactive transport problems, namely, Oden-Babu$\check{s}$ka-Baumann
DG (OBB-DG), non-symmetric interior penalty Galerkin (NIPG),
symm...
Precise Large Deviations for Sums of Negatively Associated Random Variables with Common Dominatedly Varying Tails
negatively associated dominatedly varying tail precise large deviation
2007/12/12
In this paper, we obtain results on precise large deviations for non-random and random sums of negatively associated nonnegative random variables with common dominatedly varying tail distribution func...
Moderate Deviations for Random Sums of Heavy-Tailed Random Variables
large deviations moderate deviations extended regular variation Poisson process
2007/12/11
Let $\{X_n ; n\geq 1\}$ be a sequence of independent non-negative random variables with common distribution function $F$ having extended regularly varying tail and finite mean $\mu=E(X_1)$ and let $\{...
关于近似广义极因子的误差界
广义极分解 误差界 Frobenius范数 半正定矩阵
2007/12/10
设$A$是$m\times n$阶复矩阵, 分解式$A=QH$称为$A$的广义极分解,如果$Q$是$m\times n$阶次酉矩阵和$H$是$n\times n$半正定的Hermite矩阵.本文给出了广义极分解的一些性质和推广了有关近似极因子的相关结论.