Results 161 to 170 of about 341,424 (240)

Machine Learning‐Based Representation of Model Error and Observation Error With Estimated Cross‐Correlation in Data Assimilation

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 11, November 2026.
Abstract The current study presents machine learning (ML)‐based schemes that independently represent model error and observation error during data assimilation. The Model Error ML scheme (MLME) uses a generative adversarial network (GAN) to produce flow‐dependent model corrections.
Yingjie Chen   +4 more
wiley   +1 more source

Efficient algorithm for optimal wavelength selection in photoacoustic spectral unmixing. [PDF]

open access: yesBiomed Opt Express
Smith C   +5 more
europepmc   +1 more source

Robust H∞ control of discrete-time linear systems with delayed state and Frobenius norm-bounded uncertainties

open access: yes, 2000
The robust H∞ control problem is considered in this paper for discrete-time linear systems with delayed state and subject to Frobenius norm-bounded parameter uncertainties, and attention is focused on the design of memoryless state feedback controllers ...
Gao, F., Yu, L.
core  

Abundance Redistribution Increases Predator‐Prey Interaction Potentials Among North American Birds

open access: yesGlobal Change Biology, Volume 32, Issue 11, November 2026.
While species‐level responses to global changes have been widely observed, few studies quantify their impact on species interactions on broad spatial and temporal scales. Using 50 years of abundance data in North America, we investigated how the redistribution of birds affects the potential of predator‐prey interactions.
Heng‐Xing Zou   +4 more
wiley   +1 more source

Entanglement-induced resilience of quantum dynamics. [PDF]

open access: yesSci Adv
Feng T   +6 more
europepmc   +1 more source

On Selection of Cross‐Section Averages in Non‐Stationary Environments

open access: yesJournal of Time Series Analysis, Volume 47, Issue 6, Page 1206-1212, November 2026.
ABSTRACT Information criteria (ICs) have been widely used in factor models to estimate an unknown number of latent factors. It has recently been shown that ICs perform well in Common Correlated Effects (CCE) and related settings when selecting a set of cross‐section averages (CAs) sufficient for the factor space under stationary factors.
Jan Ditzen, Ovidijus Stauskas
wiley   +1 more source

Surrogate Computational Homogenization Enhanced by Partition‐of‐Unity RBF Interpolation With Decision Trees

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 20, 30 October 2026.
ABSTRACT This study enhances a framework of surrogate computational homogenization (SCH) using decision tree‐based partition‐of‐unity radial basis function (PU‐RBF) interpolation for three‐dimensional finite‐deformation two‐scale analysis. The method addresses the scalability limitation of global RBF interpolation for large numerical material test (NMT)
Yosuke Yamanaka   +2 more
wiley   +1 more source

Non‐Central Wishart Random Matrices in Structural Dynamics: A Modal‐Basis Approach

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 20, 30 October 2026.
ABSTRACT This article develops a non‐parametric stochastic computational model for linear structural dynamics based on a reduced non‐central Wishart (NCW) random matrix formulation. The objective is to represent uncertainty in the mass and stiffness matrices while preserving the matrix properties required for modal and frequency‐domain analysis ...
Alan Das Mannoosseril   +2 more
wiley   +1 more source

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