نتایج جستجو برای: variable separable method

تعداد نتایج: 1849345  

Journal: :Axioms 2021

In this work, we investigate the ill-conditioned problem of a separable, nonlinear least squares model by using variable projection method. Based on truncated singular value decomposition method and Tikhonov regularization method, propose an improved which neither discards small values, nor treats all corrections. By fitting Mackey–Glass time series in exponential model, compare three methods, ...

2010
Tanapat Deesuwan

Entanglement is an amazing feature of quantum mechanics which is a nontrivial non-local correlation between states. It is studied and exploited greatly in the field of quantum information. Traditionally, most quantum systems of interest in quantum information is described by discrete variable states, e.g. spin of particles. Thus, entanglement is studied to a considerable extent in such state. N...

2017
Fan Yang Xiao Liu Xiao-Xiao Li Cheng-Ye Ma

In this paper, we investigate an inverse problem to determine an unknown source term that has a separable-variable form in the time-fractional diffusion equation, whereby the data is obtained at a certain time. This problem is ill-posed, and we use the Landweber iterative regularization method to solve this inverse source problem. Two kinds of convergence rates are obtained by using an a priori...

Journal: :SIAM Journal on Optimization 1998
Mikhail V. Solodov

We consider the parallel variable distribution (PVD) approach proposed by Ferris and Mangasarian [SIAM J. Optim., 4 (1994), pp. 815–832] for solving optimization problems. The problem variables are distributed among p processors with each processor having the primary responsibility for updating its block of variables while allowing the remaining “secondary” variables to change in a restricted f...

Journal: :SIAM Journal on Matrix Analysis and Applications 2021

Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 2 March 2021Accepted: 07 July 2021Published online: 11 November 2021Keywordsinexact Krylov methods, separable nonlinear inverse problems, variable projection method, Tikhonov regularization, image deblurring, blind deblurringAMS Subject Headings65F20, 65F22, 65F30Publicat...

Journal: :SIAM J. Scientific Computing 2010
Julianne Chung James G. Nagy

This paper considers an efficient iterative approach to solve separable nonlinear least squares problems that arise in large scale inverse problems. A variable projection GaussNewton method is used to solve the nonlinear least squares problem, and Tikhonov regularization is incorporated using an iterative Lanczos hybrid scheme. Regularization parameters are chosen automatically using a weighted...

پایان نامه :دانشگاه امام رضا علیه اسلام - دانشکده ادبیات و زبانهای خارجی 1393

abstract this mixed method study examines whether there is any relationship among the variables of the study (job satisfaction, social capital and motivation). the researcher considered job satisfaction and social capital as independent variables; motivation is the dependent variable of the study. the researcher applied a questionnaire to assess each variable. to measure efl teachers’ job sati...

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