Results 51 to 60 of about 14,024,872 (145)

The element-wise weighted total least squares problem

, 2006
A new technique for parameter estimation is considered in a linear measurement error model AX approx B, A = A0 + tilde A, B = B0 + tilde B, with row-wise independent and non-identically distributed measurement errors tilde A, tilde B.
Premoli, P., Van Huffel, S., Markovsky, I., Rastello, M.   +3 more
core   +1 more source

Derivation Of Moving Least-Squares Approximation Shape Functions And Its Derivatives Using The Exponential Weight Function

Civil Engineering Dimension, 2007
In recent years, meshless methods have gained their popularity, mainly due to the fact that absolutely no elements are required to discretize the problem domain.
Effendy Tanojo
doaj  

High-performance numerical algorithms and software for structured total least squares [PDF]

, 2005
We present a software package for structured total least squares approximation problems. The allowed structures in the data matrix are block-Toeplitz, block-Hankel, unstructured, and exact.
Van Huffel, S., Markovsky, Ivan, Markovsky, I., Van Huffel, Sabine   +3 more
core   +2 more sources

An Improved Method for Spot Position Detection of a Laser Tracking and Positioning System Based on a Four-Quadrant Detector

Sensors, 2019
For the laser tracking and positioning system of a moving target using a four-quadrant detector, the accuracy of laser spot position detection has a serious impact on the tracking performance of the system.
Wugang Zhang, Wei Guo, Chuanwei Zhang, Shuanfeng Zhao   +3 more
doaj   +1 more source

Research on Moving Force Estimation of the Bridge Structure using the Adaptive Input Estimation Method

Electronic Journal of Structural Engineering, 2008
An on-line adaptive input estimation method that estimates the moving force inputs of the bridge structure is presented in this research. By using the inverse method, input forces acting on bridge structural system can be estimated from the measured ...
Tsung-Chien Chen, Ming-Hui Lee
doaj   +1 more source

On the computation of the structured total least squares estimator

, 2004
A class of structured total least squares problems is considered, in which the extended data matrix is partitioned into blocks and each of the blocks is (block) Toeplitz/Hankel structured, unstructured, or noise free.
Van Huffel, S., Kukush, A., Markovsky, I.   +2 more
core   +1 more source

Self-Adaptive Moving Least Squares Measurement Based on Digital Image Correlation

Optics
Digital image correlation (DIC) is a non-contact measurement technique used to evaluate surface deformation of objects. Typically, pointwise moving least squares (PMLS) fitting is applied to process the noisy data from DIC to obtain an accurate strain ...
Hengsi Zhu, Yurong Guo, Xiao Tan
doaj   +1 more source

Least squares fitting the three-parameter inverse Weibull density [PDF]

, 2010
The inverse Weibull model was developed by Erto [10]. In practice, the unknown parameters of the appropriate inverse Weibull density are not known and must be estimated from a random sample.
Marušić, Miljenko, Darija Marković, Dragan Jukić, Miljenko Marušić, Marković, Darija, Jukić, Dragan   +5 more
core   +1 more source

Convergence rate for the moving least-squares learning with dependent sampling

Journal of Inequalities and Applications, 2018
We consider the moving least-squares (MLS) method by the regression learning framework under the assumption that the sampling process satisfies the α-mixing condition.
Qin Guo, Peixin Ye
doaj   +1 more source

An adapted version of the element-wise weighted total least squares method for applications in chemometrics

, 2007
The Maximum Likelihood PCA (MLPCA) method has been devised in chemometrics as a generalization of the well-known PCA method in order to derive consistent estimators in the presence of errors with known error distribution.
Markovsky, Ivan, Schuermans, Mieke, Van Huffel, Sabine   +2 more
core   +1 more source