查询词典 approximate method

Some stochastic Galerkin methods, combining the Askey polynomial chaos expansion for the stochastic inputs and the spectral method in the physical space, are proposed to approximate some popular model problems.

研究的算法基于随机方向上的Askey正交多项式谱分解和物理空间方向上的谱方法。

In the dissertation, we propose a practical method of vehiclelogo location from coarse to fine. The approximate scope of vehiclelogo is first confirmed by preexistent knowledge, then its finer position is found by edge detection and morphology operators, and finally it is located precisely by relation match operator in a very small scope.

本文从人眼的视觉特性出发，提出了一种实用的从粗到精的车标定位算法，即先根据先验知识确定车标的大致范围，再运用图像处理中的边缘检测和形态算子确定较准确的车标位置，最后在极小的范围内用相关匹配算子得到车标的精确位置。

We use the approximate distribution comes from probability generating function of CreditRisk+ to value the CDO under the single sector factor and multi-sector factors scenarios. For single sector factor model, we discuss the sensitive analysis of CDO fair spread by different default probability, default correlation and loss given default. For multi-sector factors model, we exam the CDO fair spread based on different sector correlation assumption, such as Gamma distribution in moment match method, multivariate Gamma distribution and compound Gamma distribution.

本文在信用风险加成模型之下，利用机率产生函数的近似分配评价抵押债务债券，并考虑单一部门因子与多个部门因子，单一部门因子中，在不同违约机率、违约相关系数和违约损失率下，探讨抵押债务债券公平价差之敏感度分析；多个部门因子中，在不同相关性部门因子分配假设下，如动差配适法的伽玛分配、多维伽玛分配、复合伽玛分配，探讨抵押债务债券公平价差之方法结果比较。

First introduced the lattice-value information systems knowledge, and to partial order for the basis has been a new relationship: advantage, given the reduction and the core, the concept of simplifying the classification of features, it is also given on the approximation, and the approximate reduction of matrix determined theorem and the concept of identification, the final adoption of specific reduction of examples to illustrate this method is effective.

首先介绍了格值信息系统的相关知识，并以偏序关系为基础得到了一种新的关系：优势关系，给出了约简和核心，简化了概念的分类特征，也给出了上近似、下近似及约简的判定定理和辨识矩阵的概念，最后通过具体的例子说明这种约简方法是有效的。

The remanence and coercivity approximate to 0. This method was simple, fast and the particle size of product was comparatively uniform.

该合成方法简单快速，产物剩磁和矫顽力都接近0，且粒度比较均匀。

Firstly, this paper uses the method of renormalization group to deal with the Ising Model of equilibrium phase transition and calculate and compare the critical index of the model of square cell with different lattices, which leads to the finding that the size of Kadanoff cell have greater influence on the approximate treatment of interactions between cells.

本文首先用重正化群方法处理了平衡相变的Ising模型，计算了不同格点数的正方形元胞模型的临界指数并进行对比，发现Kadanoff 元胞的大小对元胞间相互作用的近似处理影响较大。

A new kind of excitation source model, which is more approximate practical situation, is presented. Based on the results, the input impedance, gain and directivity of a rhombic antenna is analyzed by using moment method and microwave network theory.

针对卫星通信拥挤、短时无法补充的缺陷，提出了一种新的更接近实际的平衡激励源处理方法，并在此基础上利用微波网络理论与矩量法相结合，系统地分析、计算了菱形天线的输入阻抗、增益及方向特性。

In article [3], they triangulate the Riemann Surface, and then find the approximate affine atlas by variational method and conformal invariants.

而文章[3]是通过对任意黎曼面进行三角剖分后，利用变分方法和共形不变量解决的。

The popular method is to approximate the pattern of a sample by multiplying the size of the sample and the pattern of the unit sample.

国际上普遍认为：对不同大小的数据样点，不可能有统一的模板。

Analytical approximate periods and periodic solutions to large amplitude oscillation of a simple pendulum are constructed using a new method.

构造了单摆大振幅振动的高精度解析逼近周期和周期解。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。