最小平方

An approach based on least median squares to a stereo-based visual odometry system is presented.

提出了一种基于最小平方中值定理的立体视觉里程计方法。

A novel method is proposed, which is based on orthogonal least square algorithm. This method offers a systematic way for the selection of input variables.

神经网络是进行负荷预测的一种成功方法，输入变量的选择是影响神经网络预测效果的重要因素，本文提出了基于正交最小平方方法的神经网络输入变量选择方法。

Furthermore, we solve the user equilibrium problem by gradient projection method to obtain some additional path-based information. Since true OD trip demands are unknown, we conduct OD demand estimation and OD demand covering rate verification by the least square estimator.

在求解使用者均衡之交通量指派问题上，透过梯度投影法(Gradient projection， GP)求解，并获得以路径为基础的相关资讯；在流量倒推旅次起迄量的课题上，由於真实OD量未知，故使用基本的最小平方估计量，进行旅次起迄需求涵盖量的推估与检验。

The PID parameter tuning of non-linear control system is set as the engineering background. The aim is the optimal design of PID parameter. On the basis of the design and research of the advanced PID parameter tuning, the mathematical model-transfer functionis developed through correlation analysis on statistical method.And with the optimization algorithm under constraint condition, the non-linear, Isqnonlin is set as object function. Then with connection of the non-linear constrain optimization algorithm and simulink technique, a set of adjust parameters which fit the performance index of the control system are found. And optimization design process and steps are provided.

本文以非线性控制系统PID参数整定为工程背景，以PID参数的优化设计为目标，在分析和研究国内外PID参数先进整定方法的基础上，运用相关分析实验统计方法建立对象的数学模型——传递函数，把PID参数设计问题转化为一种非线性优化设计问题，借助于约束条件下的优化算法，以非线性最小平方指标为目标函数，将非线性约束优化算法同Simulink仿真技术相结合，找出符合控制系统品质指标的一组调节参数。

Our proposed method, which is a kind of optimization approach in time domain, doesn't have taper effects that result from window filter band and attenuates artifacts.

该方法是一种时间域最小平方优化分离波场的方法，不存在其他滤波方法阈值滤波器边界的影响，减少了因镶边问题带来的假象。

The embedded hardware design which base on the high speed ARM core device and the selection of key system components were also presented.

并具体介绍了最小平方卷积反演对挠度信号进行恢复的数据算法原理和其快速嵌入式程序软件的实现。

This research aims at a domestic management actual situation of professional construction management. To do an integrity study first, and then takes 1996 American Customer Satisfaction Index as a model foundation. Using Partial Least Square algorithm as the analytical tool which studies structure model to construct a professional construction management causal model, the author makes the conclusion that the weight estimated by PLS and the score of Measured Variable construct a management matrix diagram and analyze a key factor of influencing professional construction management service quality to improve a service quality and promote a customer satisfaction. Thus, managers could assign resources correctly to promote customer satisfaction.

本研究首先针对国内工程专案管理实务运作现况做完整探讨，再以1996年美国顾客满意指标(American Customer Satisfaction Index；ACSI)为模型基础，利用部分最小平方演算法，作为研究结构模型的分析工具，尝试建构工程专案管理顾客满意度之因果关系结构模型，并根据PLS所估计出的权重与衡量变数的分数，建构策略管理矩阵图，分析影响工程专案管理服务品质关键因素，作为改进服务品质与提升顾客满意的基础，以利管理者正确分配资源，提升顾客满意度。

In this thesis including six chapters,we presents a combinatorial stabilized/(first or-der equation)Galerkin least-square finite element method for viscous incompressible flowproblem to circumvent inf-sup condition necessary for the classic Galerkin mitred finiteelement method.

在由六章组成的论文中，我们为粘性不可压缩流动问题提出一种消除了经典混合元中离散inf-sup条件约束的组合稳定/最小平方有限元格式。

The VSP-CDP imaging and Kirchhoof migration method were employed to get the fine profile of the upgoing wave.

采用最小平方共轭梯度法进行速度层析反演，得到井间反射波成像的速度模塑，利用VSP-CDP成像与克希正夫偏移相结合的方法对井间地震上行反射波进行精细成像。

The VSPCDP imaging and Kirchhoof migration method were employed to get the fine profile of the upgoing wave.

采用最小平方共轭梯度法进行速度层析反演，得到井间反射波成像的速度模型，利用VSPCDP成像与克希霍夫偏移相结合的方法对井间地震上行反射波进行精细成像。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。