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  1. Parallel Solution of the Schrödinger-Poisson Equation on GPUs

    Quantum mechanical effects exhibited in carrier transport must often be accounted for in the development of future electronic devices. To achieve...
    Johann Cervenka, Robert Kosik, Felipe Ribeiro in Large-Scale Scientific Computations
    Conference paper 2024
  2. Application of machine learning to model the pressure poisson equation for fluid flow on generic geometries

    This study addresses the importance of enhancing traditional fluid-flow solvers by introducing a Machine Learning procedure to model pressure fields...

    Paulo Sousa, Alexandre Afonso, Carlos Veiga Rodrigues in Neural Computing and Applications
    Article Open access 30 May 2024
  3. A Symbolic-Numeric Method for Solving the Poisson Equation in Polar Coordinates

    A new version of the method of collocations and least squares (CLS) is proposed for the numerical solution of the Poisson equation in polar...
    Evgenii V. Vorozhtsov in Computer Algebra in Scientific Computing
    Conference paper 2023
  4. A real-time quality improvement method based on an adaptive dynamic screened Poisson equation for surveillance video in sand-dust weather

    The videos captured by the surveillance equipment in sand-dust weather will have poor visibility, color distortion, and low contrast, and the...

    Dongdong Ni, Zhenhong Jia, ... Nikola Kasabov in Journal of Real-Time Image Processing
    Article 08 September 2023
  5. The simplest node-based equilibrium finite element for 2D Poisson equation with exploration of the equivalence among hybrid, flux-based and stress-function-based equilibrium elements

    Getting a pair of compatible and equilibrated solutions is a prerequisite for dual analysis. Generally, compatible solution is obtained by the...

    Guanfu Lin, Zhong-Rong Lu, ... Li Wang in Engineering with Computers
    Article 07 April 2023
  6. Poisson Geometry of the Statistical Frobenius Manifold

    New insights on parametric families of probability distributions (exponential type) are investigated. As shown by Combe-Manin (2020), flat...
    Noemie Combe, Philippe Combe, Hanna Nencka in Geometric Science of Information
    Conference paper 2023
  7. Poisson noise and Gaussian noise separation through copula theory

    This study explores an innovative optimization problem in copula denoising, aiming to distinguish and eliminate both Poisson noise and Gaussian...

    Abdelghani Ghazdali, Aissam Hadri, ... Mourad Nachaoui in Multimedia Tools and Applications
    Article 29 January 2024
  8. Efficient GPU implementation of a Boltzmann-Schrödinger-Poisson solver for the simulation of nanoscale DG MOSFETs

    A previous study by Mantas and Vecil (Int J High Perform Comput Appl 34(1): 81–102, 2019) describes an efficient and accurate solver for nanoscale DG...

    Francesco Vecil, José Miguel Mantas, Pedro Alonso-Jordá in The Journal of Supercomputing
    Article Open access 23 March 2023
  9. A mass- and energy-conserved DG method for the Schrödinger-Poisson equation

    We construct, analyze, and numerically validate a class of conservative discontinuous Galerkin (DG) schemes for the Schrödinger-Poisson equation. The...

    Nianyu Yi, Hailiang Liu in Numerical Algorithms
    Article 08 June 2021
  10. Exploring the Global Solution Space of a Simple Schrödinger-Poisson Problem

    Quantum electron transport in nanostructures can be described by a coupled Schrödinger-Poisson system. For the simulation of IV-characteristics we...
    Robert Kosik, Johann Cervenka, ... Hans Kosina in Large-Scale Scientific Computations
    Conference paper 2024
  11. Proximal alternating minimization method for Poisson noise removal

    In this paper, utilizing the quadratic penalty technique and adding a proximal term in one subproblem, we propose the proximal alternating...

    **ao Guo, Chuanpei Xu, ... Benxin Zhang in Signal, Image and Video Processing
    Article 26 May 2024
  12. Truncated Poisson–Dirichlet approximation for Dirichlet process hierarchical models

    The Dirichlet process was introduced by Ferguson in 1973 to use with Bayesian nonparametric inference problems. A lot of work has been done based on...

    Junyi Zhang, Angelos Dassios in Statistics and Computing
    Article Open access 04 January 2023
  13. A fast look-up method for Bayesian mean-parameterised Conway–Maxwell–Poisson regression models

    Count data that are subject to both under and overdispersion at some hierarchical level cannot be readily accommodated by classic models such as...

    Pete Philipson, Alan Huang in Statistics and Computing
    Article Open access 18 May 2023
  14. Hybrid priors based on weighted hyper-Laplacian with overlap** group sparsity for poisson noise removal

    Poisson noise widely exists in photo-limited imaging systems, which is very difficult to remove because of its signal-dependent and multiplicative...

    Yuanna He, Jianguang Zhu, Binbin Hao in Signal, Image and Video Processing
    Article 24 March 2023
  15. Tomographic reconstruction from Poisson distributed data: a fast and convergent EM-TV dual approach

    This paper focuses on tomographic reconstruction for nuclear medicine imaging, where a classical approach consists to maximize the likelihood of...

    Voichiţa Maxim, Yuemeng Feng, ... Elie Bretin in Numerical Algorithms
    Article 08 June 2023
  16. Performance and Energy Evaluation for Solving a Schrödinger-Poisson System on Multicore Processors

    In this article, a Fourier-Galerkin approach for solving a Schrödinger-Poisson system is considered. The Fourier-Galerkin approach leads to an...
    Conference paper 2023
  17. Poisson noise image restoration method based on variational regularization

    In image processing problems, when the photon-counting imaging technology is used to obtain the target image, it is usually interfered with by...

    Jianhong **ang, Hao **ang, Linyu Wang in Signal, Image and Video Processing
    Article 04 October 2022
  18. De-Noising of Poisson Noise Corrupted CT Images by Using Modified Anisotropic Diffusion-Based PDE Filter

    In Poisson noise, the number of collected photons is so small due to the low light environment that degrades the image by reducing image resolution...
    Chapter 2022
  19. Arbitrarily high-order energy-conserving methods for Poisson problems

    In this paper, we are concerned with energy-conserving methods for Poisson problems, which are effectively solved by defining a suitable...

    Pierluigi Amodio, Luigi Brugnano, Felice Iavernaro in Numerical Algorithms
    Article Open access 09 March 2022
  20. Improving a Multigrid Poisson Solver with Peer-to-Peer Communication and Task Dependencies

    Multigrid methods are a family of mathematical methods governing linear time and storage complexity for solving several elliptic partial differential...
    Conference paper 2023
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