1) weighted least squares
加权最小二乘
1.
Set membership estimation by weighted least squares support vector machines
集员估计的加权最小二乘支持向量机方法
2.
The essential method of application of weighted least squares support vector machines(WLS-SVM) to time series forecasting is introduced in detail in this paper,and the general framework for one dimensional time series modeling forecasting is proposed.
介绍了加权最小二乘支持向量机(WLS-SVM)在时间序列预测中应用的基本方法,给出了一维时间序列建模预测的一般框架。
3.
In this paper, a stable and convergent adaptive control for minimum or nonminimum bilinear systems is established by using weighted least squares.
本文对一类双线性系统，用加权最小二乘辨识方法建立了自适应控制算法，该算法适用于非最小相位系统，且具有大范围渐近收敛和稳定的性质。
2) weighted least square
加权最小二乘
1.
The main algorithms of flush airdata sensing system are introduced,include weighted least square algorithm,triples algorithm and neural network algorithm.
嵌入式大气数据传感系统是一种依靠嵌入在飞行器前端的压力传感器阵列来测量飞行器表面的压力分布,并由此压力分布通过求解非线性方程组间接获得飞行参数的先进飞行数据传感系统;介绍了嵌入式大气数据传感系统及其主要的求解算法,主要包括加权最小二乘法、三点法和神经网络方法,针对每种算法分别给出了其迎角、侧滑角和动压、静压的求解公式,最后对3种算法进行了比较,结果表明神经网络方法相对与其他两种方法来说是比较理想的FADS系统的求解算法。
2.
The design of finite impulse response(FIR) digital filters with complex coefficients for which the weighted least squares error is minimized,subject to maximum error constraints is concerned.
考虑了一类加权最小二乘复系数FIR滤波器的设计问题,要求滤波器通带及止带内频点的频率响应与期望响应误差小于给定的最大误差门限。
3.
In this algorithm the time difference of arrival and time of arrival measurements are firstly smoothed and reconstructed, then a two step weighted least square algorithm is employed to estimate the position of MS.
用蜂窝网络对移动台进行定位估计时,为了降低电波的非视距传播对定位精度的不利影响,提出了一种先对电波到达时间差和到达时间测量值进行平滑和重构,再采用两次加权最小二乘算法对移动台进行定位估计的算法。
3) weighted least-squares
加权最小二乘
1.
The design is accomplished by solving a sequence of constrained weighted least-squares problems iteratively.
将设计问题转化为迭代地求解一系列约束加权最小二乘逼近问题 ,在迭代过程中利用逼近误差的包络线对权函数进行更新 。
2.
By the processes of template selection,local motion vector estimation,and weighted least-squares,the process of image registration is improved and optimized,and both the robustness and real-time of ultrasound image registration are enhanced.
结合现有的超声宽视野图像配准算法和PC平台的特点,通过匹配模板筛选、局部运动矢量评价、加权最小二乘等步骤,进一步改进和优化了配准的过程,提高了超声图像配准的鲁棒性和实时性。
3.
The solution to the constrained weighted least-squares(WLS) is derived and applied to the source localization problem based on TDOAs.
研究了高斯噪声环境下基于TDOA(波达时间差)目标定位问题,得到了约束WLS(加权最小二乘)解。
4) Weighted least square estimate
加权最小二乘
1.
Method of weighted least square estimate to adjust the heteroscedasticity of optical measure data is presented.
为了避免靶场光学测量数据异方差性导致的普通最小二乘估计非有效、显著性检验失去意义和模型的预测失效问题,采用了图形分析、Goldfeld-Quandt和Breusch Pagan Godfrey方法检验光学测量数据异方差性,并针对光学测量数据的异方差性提出分段加权最小二乘修正的方法。
5) Weighted least square method
加权最小二乘法
1.
It fuses the weighted least square method in the process of expanding the local map systems to improve location precision.
针对该问题,提出一种改进的基于无线传感器网络坐标系统拓展定位算法,在拓展局部坐标过程中融合加权最小二乘法来抑制累积误差,从而提高节点定位精度。
2.
By constructing the conditional mean of the interval censored covariate,the estimators of parameters are obtained by the weighted least square method.
研究了当协变量为区间数据时的变系数一维线性结构关系模型,通过构造区间数据变量的条件均值,它与区间数据变量具有相同的均值,然后利用加权最小二乘法得到了变系数一维线性结构关系模型中的参数估计,当协变量的分布已知时,证明了估计的弱相合性和强相合性。
3.
This paper uses iterative weighted least square method based on MATLAB soft for makingrobust estimation by the example of the Runyang Bridge engineering.
经典的LS估计法(least squares estimation,LS estimation)是对每个观测数据都给予相同的权重,由此带来了对于异常值的处理不当,从而影响了回归模型的有效性,本文采用迭代加权最小二乘法来进行稳健估计(RobustEstimation),并基于MATLAB软件结合润扬大桥工程实例说明了此法的有效性。
6) weighted least square
加权最小二乘法
1.
Parameter estimation with equality constraints based on weighted least square;
带等式约束的加权最小二乘法参数估计
2.
Methods Marginal proportion functions were calculated by using weighted least square (WLS) method through SAS system.
方法采用加权最小二乘法建立边际函数模型,给出治疗中风临床试验实例,调用SAS统计软件包中CATMOD过程对重复测量分类数据资料进行统计分析。
3.
The initial data is preprocessed at first,then the universal M-estimation is transferred to WLS(weighted least square) and the weight coefficients are related with the errors.
该方法首先对生数据进行预处理,然后基于抗差原理,利用权因子把一般性的M估计转换为加权最小二乘法,并将权系数和余差联系起来,有效地解决了常规加权最小二乘法中,由于常数权系数所导致的,对粗差处理能力不足的问题。
补充资料：加权最小二乘法
分子式：
CAS号：
性质：根据在一组不等精度测定值中，最佳值是能使各测定值的加权偏差平方和为最小的那个值的原理，进行参数估计的方法。
CAS号：
性质：根据在一组不等精度测定值中，最佳值是能使各测定值的加权偏差平方和为最小的那个值的原理，进行参数估计的方法。
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