Results 111 to 120 of about 2,726,393 (218)
Beta Forecasting With Realized Beta Estimators and Machine Learning Algorithms
Journal of Forecasting, Volume 45, Issue 8, Page 3679-3709, December 2026.ABSTRACT This paper applies machine learning algorithms to the modeling of realized betas for the purposes of forecasting stock systematic risk. Higher levels of beta forecast accuracy are demonstrated, relative to other studies in the literature. These improvements are also highly significant, both statistically and economically.
Bao Doan +3 more
wiley +1 more source
Hermite-Hadamard-Type Inequalities for r-Preinvex Functions
Journal of Applied Mathematics, 2013 We aim to fi nd Hermite-Hadamard inequality for r-preinvex functions. Also, it is investigated for the product of an r-preinvex function and s-preinvex function.
Wasim Ul-Haq, Javed Iqbal
doaj +1 more source
Schur’s theorem for a block Hadamard product
Linear Algebra and its Applications, 2012 Let \(M_{m,n}\) be the space of complex \(m\times n\) matrices, and let \(\mathbf{M}_{p,q}(M_{m,n})\) be the space of \(p\times q\) block matrices \(\mathbf{A}=(A_{\alpha\beta})_{\alpha=1,\dots,p}^{\beta=1,\dots,q}\), \(A_{\alpha\beta}\in M_{m,n}\). The authors define a block Kronecker product of \(A\in M_{m,l}\) and \(\mathbf{B}=(B_{\mu\nu})\in\mathbf{
Günther, M., Klotz, L.
openaire +1 more source
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT We present an efficient multi‐object map‐matching approach for scene modeling in the context of automated driving. The mapping of traffic participants to the road topology is a key component of the scene modeling step in the processing pipeline for situation‐aware automated driving.
Maximilian Gerwien, Klaus Röbenack
wiley +1 more source
An inequality for the integral means of a Hadamard product [PDF]
Proceedings of the American Mathematical Society, 1988 Motivated by Colzani’s paper [ 1 ] we prove that \[ M
openaire +2 more sources
Surrogate‐Assisted Nonlinear Model Predictive Control for a Lambda Robot
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT This work presents a nonlinear model predictive control (NMPC) framework for a lambda‐shaped parallel robot that incorporates data‐driven surrogates to facilitate control design. An inverse surrogate model is used to provide an efficient initialization of the control inputs for NMPC.
Sanam Hajipour +2 more
wiley +1 more source
Probing and Graph Coloring Techniques for Trace Estimation in Lattice QCD
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT The computation of Tr[D−1]$\mathrm{Tr}[D^{-1}]$, where D$D$ is the Wilson–Dirac matrix of Lattice QCD, is a fundamental and computationally demanding task with applications to disconnected hadronic correlation functions. Since D−1$D^{-1}$ is a dense matrix of prohibitive size, its trace cannot be computed exactly, and one must resort to ...
Mario Papace +5 more
wiley +1 more source
Inequalities of Furuta and Mond–Pečarić on the Hadamard product
Journal of Inequalities and Applications, 2000 As a continuation of (J. Mičić, Y. Seo, S.-E. Takahasi and M. Tominaga, Inequalities of Furuta and Mond–Pečarić, Math. Ineq. Appl., 2 (1999), 83–111), we shall discuss complementary results to Jensen's type inequalities ...
Takahasi Sin-El +3 more
doaj
, 2014 Diplomska naloga obravnava manj znano obliko matričnega množenja - Hadamardov produkt matrik. V uvodnem poglavju spoznamo osnovne pojme s področja matrik, nekatere posebne oblike le teh s pripadajočimi lastnostmi ter definicije in izreke na temo ...
Sakelšek, Aleš
core
MIGC: Pseudotime differentially expressed genes detection with mutual information
Quantitative Biology, Volume 14, Issue 4, December 2026.Abstract Trajectory analysis of single‐cell RNA sequencing (scRNA‐seq) data provides insights into cell differentiation and the underlying mechanisms at the gene level. Although various pseudotime inference methods have been proposed, the detection of pseudotime differentially expressed genes (DEGs) mainly relies on generalized additive model fitting ...
Jiachen Li, Ye Yuan
wiley +1 more source