نتایج جستجو برای: regularization method

تعداد نتایج: 1642386  

‎In this paper‎, ‎we consider an inverse boundary value problem for two-dimensional heat equation in an annular domain‎. ‎This problem consists of determining the temperature on the interior boundary curve from the Cauchy data (boundary temperature and heat flux) on the exterior boundary curve‎. ‎To this end‎, ‎the boundary integral equation method is used‎. ‎Since the resulting system of linea...

Journal: :نظریه تقریب و کاربرد های آن 0
h. molhem department of physics , faculty of science, islamic azad university, karaj branch, karaj, iran r. pourgholi school of mathematics and computer sciences, damghan university, p.o.box 36715-364, damghan, iran. m. borghei department of physics , faculty of science, islamic azad university, karaj branch, karaj, iran.

in this paper, we propose an algorithm for numerical solving an inverse non-linear di usion problem. in additional, the least-squares method is adopted to nd the solution. to regularize the resultant ill-conditioned linear system ofequations, we apply the tikhonov regularization method to obtain the stablenumerical approximation to the solution. some numerical experiments con- rm the utility of...

Akbar Shahsavand Ali Haghighi Asl Mohammad Reza Ghorbani

In the present article an energy distribution function of heterogeneous solid was estimated. Energy distribution function is an important characterization for heterogeneous adsorbent. An overall adsorption quantity for a heterogeneous solid is usually expressed by a first kind of Fredholm equation, which contains unknown distribution function and local adsorption isotherm as a kernel. The calcu...

Journal: :Numerical Algorithms 2011

Journal: :Mathematical Modelling and Analysis 2010

Journal: :Journal of Computational and Applied Mathematics 2015

Super-resolution (SR) aims to overcome the ill-posed conditions of image acquisition. SR facilitates scene recognition from low-resolution image(s). Generally assumes that high and low resolution images share similar intrinsic geometries. Various approaches have tried to aggregate the informative details of multiple low-resolution images into a high-resolution one. In this paper, we present a n...

Journal: :Communications in Theoretical Physics 1997

This study deals with the 3D recovering of magnetic susceptibility model by incorporating the sparsity-based constraints in the inversion algorithm. For this purpose, the area under prospect was divided into a large number of rectangular prisms in a mesh with unknown susceptibilities. Tikhonov cost functions with two sparsity functions were used to recover the smooth parts as well as the sharp ...

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