Results 101 to 110 of about 14,349 (287)

A Novel Approach to Regionalize Country‐Level GDP Projections

Journal of Forecasting, EarlyView.
ABSTRACT Socioeconomic projections are policy support tools that are often limited to country‐level data, making them insufficient for policy areas that require a more nuanced, sub‐national perspective. For granular geographical analyses in a multicountry setting, international organizations often rely on straightforward regionalization techniques ...
Riccardo Curtale, Matteo Schiavone, Filipe Batista e Silva   +2 more
wiley   +1 more source

Interface Engineering in Solid‐State Sodium Batteries: Advances in Materials Design, Interfacial Strategies, and Multiscale Characterization

Interdisciplinary Materials, EarlyView.
Since solid‐state sodium batteries (SSSBs) are a promising solution for advancing sodium‐based energy storage, it is necessary to systematically summarize the development process of SSSBs. It focuses on the role of interface engineering in addressing challenges such as materials design, interfacial strategies, and multiscale characterization.
Yonghuan Fu, Guosheng Shao, Yong Lei
wiley   +1 more source

A non-Secant quasi-Newton Method for Unconstrained Nonlinear Optimization

, 2022
Issam A. R. Moghrabi
openalex   +1 more source

Mergers and Acquisitions and Brexit: A Natural Experiment

International Journal of Finance &Economics, EarlyView.
ABSTRACT We study the impact of Brexit uncertainty on one of the most important forms of corporate investment: mergers and acquisitions (M&As). Brexit provides us with an ideal natural experiment to explore the real effects of economic uncertainty and understand the underlying transmission mechanism. We document a significant decline in the number of M&
Di Luo, Tapas Mishra, Mamata Parhi, Zhuang Zhang   +3 more
wiley   +1 more source

Unconstrained optimization [PDF]

, 2003
  +4 more sources

From Reactive to Proactive Volatility Modeling With Hemisphere Neural Networks

Journal of Applied Econometrics, EarlyView.
ABSTRACT We revisit maximum likelihood estimation (MLE) for macroeconomic density forecasting through a novel neural network architecture with dedicated mean and variance hemispheres. Our architecture features several key ingredients making MLE work in this context.
Philippe Goulet Coulombe, Mikael Frenette, Karin Klieber   +2 more
wiley   +1 more source

Hybrid Beamforming Design on Riemannian Manifolds for Wideband MIMO Systems

IEEE Access
This paper proposes a novel, unified approach to design both radio frequency (RF) and baseband beamforming (BF) solutions for wideband hybrid multiple-input multiple-output (MIMO) systems using the Riemannian manifold optimization. The proposed two-stage
Hyunwoo Nam, Girim Kwon, Hyuncheol Park
doaj   +1 more source

On the use of third-order models with fourth-order regularization for unconstrained optimization

, 2019
Ernesto G. Birgin, John Lenon Cardoso Gardenghi, J. M. Martı́nez, Sandra A. Santos   +3 more
openalex   +1 more source

Deep Learning Integration in Optical Microscopy: Advancements and Applications

Microscopy Research and Technique, EarlyView.
It explores the integration of DL into optical microscopy, focusing on key applications including image classification, segmentation, and computational reconstruction. ABSTRACT Optical microscopy is a cornerstone imaging technique in biomedical research, enabling visualization of subcellular structures beyond the resolution limit of the human eye ...
Pottumarthy Venkata Lahari, Sagnika Dutta, H. Deeksha, Samreen A. Patel, Budheswar Dehury, Nirmal Mazumder   +5 more
wiley   +1 more source

A new Suggested Conjugate Gradient Algorithm with Logistic Mapping

Science Journal of University of Zakho, 2016
In this paper, we will use logistic mapping to find new conjugate gradient coefficients for unconstrained optimization.
Dlovan H. Omar
doaj