Results 51 to 60 of about 1,949 (217)
A Hybrid‐High Order Method for Fracture Modelling
International Journal for Numerical Methods in Engineering, Volume 127, Issue 13, 15 July 2026.ABSTRACT In this work we introduce a new Hybrid High‐Order method for the numerical simulation of fracture propagation based on phase‐field models. The proposed method: supports general meshes made of polygonal/polyhedral elements, which provides great flexibility in mesh design and adaptation; can accommodate large variations of both the displacement ...
Alessandra Crippa +4 more
wiley +1 more source
A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios
Journal of Forecasting, Volume 45, Issue 4, Page 1797-1828, July 2026.ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley +1 more source
Abordagem geométrica para estabilização por realimentação de saídas e sua extensão aos sistemas descritores [PDF]
, 2002 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaEste trabalho trata os problemas de estabilização e de posicionamento regional de pólo em sistemas lineares contínuos no ...
Villarreal, Elmer Rolando Llanos
core
Eigenstructure involving the histogram for image thresholding [PDF]
IET Image Processing, 2020 The idea of the proposed image thresholding scheme is simply to consider the histogram as a 2D plot rather than a 1D function. The data can now be represented as a two‐row matrix. The first row is simply the grey levels of the image and the second row is the corresponding histogram values. Multiplying this matrix by its transpose will result in a power‐
openaire +1 more source
Geographical Analysis, Volume 58, Issue 3, July 2026.ABSTRACT This study introduces a novel methodology in which a composite indicator derived using the Entropy Weight Method is decomposed into a location‐specific component and a spatial component. Although EWM is widely recognized for its robustness in constructing data‐driven composite indicators, standard applications typically overlook spatial ...
Martina D'Amario +2 more
wiley +1 more source
Eigenstructure assignment for the position regulation of a fully-actuated marine craft [PDF]
, 2017 In this paper, we adopt eigenstructure assignment in order to assist with the tuning of a nonlinear energy-based regulator for the positioning of a marine craft in the horizontal plane.
Perez, Tristan +5 more
core +1 more source
Detecting Outliers Using Modified Recursive PCA Algorithm For Dynamic Streaming Data
Mendel, 2023 Outlier analysis has been widely studied and has produced many methods. However, there is still rare a method to detect outliers for dynamically streaming batch data (online learning). In the present research, a novel online algorithm to detect outliers
Yasi Dani +3 more
doaj +1 more source
Journal of the London Mathematical Society, Volume 114, Issue 1, July 2026.Abstract The eigenstructure of a rational matrix is comprised by its invariant rational functions, both finite and at infinity, and by the minimal indices of its left and right null spaces. These quantities arise in many applications and have been thoroughly studied in numerous references.
Itziar Baragaña +3 more
wiley +1 more source
Flight Control Design for a Tailless Aircraft Using Eigenstructure Assignment
International Journal of Aerospace Engineering, 2011 We apply eigenstructure assignment to the design of a flight control system for a wind tunnel model of a tailless aircraft. The aircraft, known as the innovative control effectors (ICEs) aircraft, has unconventional control surfaces plus pitch and yaw ...
Clara Nieto-Wire, Kenneth Sobel
doaj +1 more source
On the eigenstructure of the $(\alpha,q)$-Bernstein operator
Hacettepe Journal of Mathematics and Statistics, 2021 The eigenvalues and eigenvectors of $(\alpha,q)$-Bernstein operators are unknown and not studied in the literature. As the main result of this article, the eigenvalues and eigenvectors of $(\alpha,q)$-Bernstein operators are obtained. Moreover, we will give the asymptotic behaviour of these eigenvalues and eigenvectors for all $q>0.$ Some ...
Bülent KÖROĞLU +1 more
openaire +4 more sources