Results 21 to 30 of about 8,652,887 (279)
Open Physics, 2021 In this article, a hybrid Haar wavelet collocation method (HWCM) is proposed for the ill-posed inverse problem with unknown source control parameters. Applying numerical techniques to such problems is a challenging task due to the presence of nonlinear ...
Ahsan Muhammad +6 more
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Finding Nemo’s Giant Cousin: Keypoint Matching for Robust Re-Identification of Giant Sunfish
Journal of Marine Science and Engineering, 2023 The Giant Sunfish (Mola alexandrini) has unique patterns on its body, which allow for individual identification. By continuously gathering and matching images, it is possible to monitor and track individuals across location and time.
Malte Pedersen +2 more
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Improving the condition number of estimated covariance matrices
Tellus: Series A, Dynamic Meteorology and Oceanography, 2020 High dimensional error covariance matrices and their inverses are used to weight the contribution of observation and background information in data assimilation procedures.
Jemima M. Tabeart +4 more
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Actuators, 2023 This study proposes a method for designing a class of rotationally symmetric Stewart platforms (RSSPs) with an insensitive condition number (ICN), which is used to minimize the condition number to achieve a high accuracy for a multi-degree-of-freedom ...
Chao Liang +3 more
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A heuristic algorithm to combat outliers and multicollinearity in regression model analysis [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2022 As known, outliers and multicollinearity in the data set are among the important diffculties in regression models, which badly affect the leastsquares estimators. Under multicollinearity and outliers’ existence in the data set, the prediction performance
M. Roozbeh, S. Babaie-Kafaki, M. Manavi
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Condition number analysis and preconditioning of the finite cell method [PDF]
, 2016 The (Isogeometric) Finite Cell Method - in which a domain is immersed in a structured background mesh - suffers from conditioning problems when cells with small volume fractions occur.
de Prenter, F. +3 more
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State estimator condition number analysis [PDF]
IEEE Transactions on Power Systems, 2001 This paper develops formulas for the condition number of the state estimation problem as a function of the different types and number of measurements. We present empirical results using the IEEE RTS-96 and IEEE 118 bus systems that validate the formulas.
R. Ebrahimian, R. Baldick
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Estimating Matrix Condition Numbers [PDF]
SIAM Journal on Scientific and Statistical Computing, 1980 In this note we study certain estimators for the condition number of a matrix which, given an $LU$ factorization of a matrix, are easily calculated. The main observations are that the choice of estimator is very norm-dependent, and that although some simple estimators are consistently bad, none is consistently best.
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New Insights into the RLS Algorithm
EURASIP Journal on Advances in Signal Processing, 2004 The recursive least squares (RLS) algorithm is one of the most popular adaptive algorithms that can be found in the literature, due to the fact that it is easily and exactly derived from the normal equations.
Gänsler Tomas, Benesty Jacob
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingAirborne LiDAR bathymetry (ALB) can seamlessly measure land and shallow water areas. However, many factors lead to point cloud thickness and stratification of adjacent swaths, which are unfavorable for generating seafloor topographic maps.
Yadong Guo +7 more
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