算法化

This paper presents an improved method that uses the orthogonal least square algorithm to estimate both the structure and the parameters in the linear models from linearizing locally the whole nonlinear space.

本文在对非线性空间进行局部线性化的基础上，采用正交最小二乘方法对线性模型同时进行结构选择与参数辨识，改善了数值的病态特性，增强了算法的稳定性。

The material job and main conclusion are as follows:(1)A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.(2) SIMPLE procedure is established in nonorthogonal grids by use of the finite volume method and in-depth discusses on special topic such as boundary condition in nonorthogonal grids, deferred correction method and grads compute on calculational nodes, and so on.

本文完成的具体工作和主要结论如下： 1以代数网格生成方法为基础提出了一种简单的、可独立于网格生成方法之外的边界正交化技术；针对分区结构网格系统建立了分区交界面处的数据结构与计算模型； 2利用有限体积方法在非正交同位网格系统中建立了SIMPLE求解算法，对非正交网格系统中的边界条件、延迟修正技术及计算节点的梯度计算等专题进行了深入讨论。

The proposed algorithm is based on the Gram-Schmitz orthonormalization of equivalent spread-spectrum codes and the successive interference cancellation.

本文针对多径衰落信道下的直扩码分多址系统的上行链路，基于等效扩频码组Gram-Schmitz正交化与串行干扰消除，提出了等效同步多用户检测算法。

A fourth-order compact finite difference alternating-direction-implicit algorithm is proposed for solving the unsteady-state Navier-Stokes equations of fluid flow and heat transfer using the streamfunction-vorticity formulation. Point-successive overtaxation iteration is used to achieve the steady solutions.

本文构造了求解二维非定常涡量流函数形式Navier-Stokes方程组的一种四阶紧致交错方向隐式差分算法，对包括能量方程在内的离散化方程组采用逐次超松驰迭代法求得稳定解，求解了二维非定常粘性不可压缩流体的流动与传热问题。

ABSTRACT Particle filter is a new real time inference algorithm which is based on Bayesian inference and Monte carlo method. Because of its unique characteristics such as flexible, easy to implement, parallelizable, extensive applicability and efficient to process nonlinear problems, particle filter has been paid more and more attention in recent years and becomes a new and very promising hot topic in applied statistics, signal processing, automatic control, artificial intelligence and machine learning communities. At the same time, the formidable increasing computational power and some recent developments in applied statistics and probability theory has stimulated many advances in this field.

始于20世纪90年代初的粒子滤波器技术是一种基于贝叶斯推理和蒙特卡罗方法的实时在线推理算法，因其具有灵活、易于实现、并行化、应用前景广阔以及有效处理非线性问题等特点，受到了越来越广泛的重视，成为统计学、信号处理、自动控制、人工智能、机器学习等领域新的研究热点，同时伴随着计算机计算能力的超指数增长以及应用统计学、概率论等一些学科的不断进步，使该领域的研究得到了迅速发展。

It is composed of a deformable parametric curve and corresponding energy function.

主动轮廓模型是一种基于高层信息的目标轮廓特征提取算法，它由一条可变形的参数曲线及其相应的能量函数组成，以最小化能量函数为目标，控制参数曲线变形，具有最小能量的闭合曲线就是目标轮廓。

2D hairy brush model, 3D hairy brush model and parametric curve scheme are analyzed and various algorithms are compared.

把绘制方法分为2D，3D毛笔模型以及基于参数化曲线的纯几何图形学方法，对其中的典型算法进行了分析和比较。

Sheet metal forming ; optimization ; parametric finite element analysis ; artificial neural network ; genetic algorithm

金属冲压件成形；优化；参数化有限元分析；人工神经网络；遗传算法

It uses an unmanned air vehicle with flying-wing configuration as a test example, presents the three key elements of the approach: the parametric representation of the aircraft structural and internal layout; the model templates for structural elements; the clash check and position adjustment algorithm for internal layout.

该方法有3个关键点：(1)飞机结构布置与内部装载布置的参数化描述；(2)结构件模板的设计；(3)内部装载干涉检查和位置调整算法。

Based on a general parametric eigenstructure assignment result proposed for descriptor linear systems via proportional plus partial derivative state feedback and a result for generalized eigenvalue sensitivity problem of matrix pairs, parametric representation of the closed-loop eigenvalue sensitivities to the perturbed elements in the open-loop system matrices is obtained. An effective algorithm for eigenvalue assignment with minimum sensitivity in descriptor linear systems via proportional plus partial derivative state feedback is then proposed.

摘要基于广义线性系统比例与部分状态导数反馈参数化特征结构配置结果和矩阵对广义特征值灵敏度结果，得到了关于开环系统矩阵中摄动元素的闭环特征值灵敏度的参数表达式，并在此基础上提出了广义线性系统比例与部分状态导数反馈最小灵敏度特征值配置的有效算法。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新