-
81
Solving an inverse Cauchy Problem for modified Helmholtz Equations depending on a polynomial expansion approximation
Published 2025-01-01“… In this study, a heat conduction in fin-related inverse problem for the modified Helmholtz equation is taken into consideration. …”
Get full text
Article -
82
Comparison of three recent discrete stochastic inversion methods and influence of the prior choice
Published 2022-10-01“…In such cases, solving a categorical inverse problem is an important step in subsurface modeling. …”
Get full text
Article -
83
Determination of a nonlinear source term in a diffusion equation with final observations
Published 2004-01-01“…This paper deals with an inverse problem of determining a nonlinear source term in a quasilinear diffusion equation with overposed final observations. …”
Get full text
Article -
84
Shape Reconstruction for Unsteady Advection-Diffusion Problems by Domain Derivative Method
Published 2014-01-01“…By the parametric method, a regularized Gauss-Newton scheme is employed to the shape inverse problem. Numerical examples indicate that the proposed algorithm is feasible and effective for the practical purpose.…”
Get full text
Article -
85
Numerical algorithm for solving parabolic identification problem with mixed boundary condition
Published 2023-12-01“…Numerical algorithm for solving this inverse problem are proposed. Stability estimates for difference schemes are established. …”
Get full text
Article -
86
Remarks on the Phaseless Inverse Uniqueness of a Three-Dimensional Schrödinger Scattering Problem
Published 2016-01-01“…We consider the inverse scattering theory of the Schrödinger equation. The inverse problem is to identify the potential scatterer by the scattered waves measured in the far-fields. …”
Get full text
Article -
87
Application of finite-difference methods to parameter identification of agroecological models
Published 2001-12-01“… A typical parameter identification problem arisen in agroecological modeling is described and a finite difference method to solve an appropriate inverse problem is proposed. The method supposes the direct solution of an initial-boundary problem by finite difference scheme and then uses a non-linear optimization routine for parameter estimation. …”
Get full text
Article -
88
Regularization of Inverse Initial Problem for Conformable Pseudo-Parabolic Equation with Inhomogeneous Term
Published 2022-01-01“…Our paper is the first work to investigate the inverse problem for conformable parabolic equations in such spaces. …”
Get full text
Article -
89
Inverse Estimates for Nonhomogeneous Backward Heat Problems
Published 2014-01-01“…We investigate the inverse problem in the nonhomogeneous heat equation involving the recovery of the initial temperature from measurements of the final temperature. …”
Get full text
Article -
90
Uniqueness in Inverse Electromagnetic Conductive Scattering by Penetrable and Inhomogeneous Obstacles with a Lipschitz Boundary
Published 2012-01-01“…The well posedness of the direct problem is established by the variational method. The inverse problem is also considered in this paper. Under certain assumptions, a uniqueness result is obtained for determining the shape and location of the obstacle and the corresponding surface parameter λ(x) from the knowledge of the near field data, assuming that the incident fields are electric dipoles located on a large sphere with polarization p∈ℝ3. …”
Get full text
Article -
91
On a Level-Set Method for Ill-Posed Problems with Piecewise Nonconstant Coefficients
Published 2013-01-01“…In order to get stable approximate solutions of the inverse problem, we propose a Tikhonov-type regularization approach coupled with a level-set framework. …”
Get full text
Article -
92
Nouvelle méthodologie d’analyse bayésienne du report des voix et de l’abstention lors du deuxième tour des élections
Published 2023-01-01“…The information from the counts of the first and second rounds is used to model voter behavior as an inverse problem solved using a Bayesian approach. It is then possible to estimate the flow of votes between the first and the second round with very good precision and to provide the objective bases which will serve for an objective political or sociological analysis.…”
Get full text
Article -
93
Determining interaction directionality in complex biochemical networks from stationary measurements
Published 2025-01-01“…Abstract Revealing interactions in complex systems from observed collective dynamics constitutes a fundamental inverse problem in science. Some methods may reveal undirected network topology, e.g., using node-node correlation. …”
Get full text
Article -
94
Bayesian Analysis for a Fractional Population Growth Model
Published 2017-01-01“…We implement the Bayesian statistical inversion theory to obtain the solution for an inverse problem of growth data, using a fractional population growth model. …”
Get full text
Article -
95
Calibration of the Volatility in Option Pricing Using the Total Variation Regularization
Published 2014-01-01“…Identifying the implied volatility is a typical PDE inverse problem. In this paper, based on the total variation regularization strategy, a bivariate total variation regularization model is proposed to estimate the implied volatility. …”
Get full text
Article -
96
A Test Matrix for an Inverse Eigenvalue Problem
Published 2014-01-01“…An explicit solution of a spring-mass inverse problem incorporating the test matrix is provided.…”
Get full text
Article -
97
GPU-Accelerated Finite Element Method for Modelling Light Transport in Diffuse Optical Tomography
Published 2011-01-01“…The forward model is the computationally most expensive component of iterative methods for image reconstruction in diffuse optical tomography, and performance optimisation of the forward solver is therefore crucial for improving the efficiency of the solution of the inverse problem. The GPU forward solver uses a CUDA implementation that evaluates on the graphics hardware the sparse linear system arising in the finite element formulation of the diffusion equation. …”
Get full text
Article -
98
Solving of Two-Dimensional Unsteady Inverse Heat Conduction Problems Based on Boundary Element Method and Sequential Function Specification Method
Published 2018-01-01“…The boundary element method (BEM) and sequential function specification method (SFSM) are used to research the inverse problem of boundary heat flux identification in the two-dimensional heat conduction system. …”
Get full text
Article -
99
Improved Error Reduction and Hybrid Input Output Algorithms for Phase Retrieval by including a Sparse Dictionary Learning-Based Inpainting Method
Published 2020-01-01“…The phase retrieval (PR), reconstructing an object from its Fourier magnitudes, is equivalent to a nonlinear inverse problem. In this paper, we proposed a two-step algorithm that traditional ER/HIO iteration plays as the coarse feature reconstruction, whereas the KSVD-based inpainting technique deals with the fine feature set accordingly. …”
Get full text
Article -
100
Refining potential energy surface through dynamical properties via differentiable molecular simulation
Published 2025-01-01“…Essentially, this work contributes to the solution of the inverse problem of spectroscopy by extracting microscopic interactions from vibrational spectroscopic data.…”
Get full text
Article