Spectral Method in Epidemic Time Series: Application to COVID-19 Pandemic [PDF]
Biology, 2022 Background: The age of infection plays an important role in assessing an individual’s daily level of contagiousness, quantified by the daily reproduction number.
Jacques Demongeot, Pierre Magal
doaj +2 more sources
SPECTRAL METHOD AND REGULARIZED MLE ARE BOTH OPTIMAL FOR TOP-K RANKING. [PDF]
Ann Stat, 2019 This paper is concerned with the problem of top-K ranking from pairwise comparisons. Given a collection of n items and a few pairwise comparisons across them, one wishes to identify the set of K items that receive the highest ranks.
Chen Y, Fan J, Ma C, Wang K.
europepmc +3 more sources
A Sparse Spectral Method on Triangles [PDF]
SIAM Journal on Scientific Computing, 2019 In this paper, we demonstrate that many of the computational tools for univariate orthogonal polynomials have analogues for a family of bivariate orthogonal polynomials on the triangle, including Clenshaw's algorithm and sparse differentiation operators.
S. Olver, Alex Townsend, G. Vasil
semanticscholar +7 more sources
Compressive Spectral Method for the Simulation of the Nonlinear Gravity Waves. [PDF]
Sci Rep, 2016 In this paper an approach for decreasing the computational effort required for the spectral simulations of the fully nonlinear ocean waves is introduced. The proposed approach utilizes the compressive sampling algorithm and depends on the idea of using a
Bayındır C.
europepmc +2 more sources
Spectral Methods for Numerical Relativity
Living Reviews in Relativity, 2009 This new version has been accepted for publication in Living Reviews in ...
Grandclement, Philippe, Novak, Jérôme
openaire +7 more sources
A spectral method for spatial downscaling. [PDF]
Biometrics, 2014 Complex computer models play a crucial role in air quality research. These models are used to evaluate potential regulatory impacts of emission control strategies and to estimate air quality in areas without monitoring data.
Reich BJ, Chang HH, Foley KM.
europepmc +2 more sources
The Influence of Bimodal Heterogeneity on Viscous Fingering of a Miscible Interface in Porous Media [PDF]
Journal of Chemical and Petroleum Engineering, 2021 The flow regimes and the dynamics of the front in miscible displacements are controlled by the interactions between the mechanisms of instability involved in such processes.
Mozhdeh Sajjadi
doaj +2 more sources
Deterministic numerical solutions of the Boltzmann equation using the fast spectral method [PDF]
, 2013 The Boltzmann equation describes the dynamics of rarefied gas flows, but the multidimensional nature of its collision operator poses a real challenge for its numerical solution. In this paper, the fast spectral method [36], originally developed by Mouhot
Reese, Jason M. +6 more
core +4 more sources
A Chebyshev-Tau spectral method for normal modes of underwater sound propagation with a layered marine environment [PDF]
Journal of Sound and Vibration, 2020 The normal mode model is one of the most popular approaches for solving underwater sound propagation problems. Among other methods, the finite difference method is widely used in classic normal mode programs.
Hou-Wang Tu +5 more
semanticscholar +1 more source
ESTIMATION OF SEDIMENTARY THICKNESS FOR HYDROCARBON POTENTIAL OVER PART OF ADAMAWA TROUGH, NE NIGERIA USING MAGNETIC METHOD [PDF]
Earth Sciences Pakistan, 2021 This study presents the results of the analysis and interpretation of aeromagnetic data over part of Adamawa trough with the aim of investigating the hydrocarbon potential of the study area.
Ajala S.A +5 more
doaj +1 more source