Results 11 to 20 of about 865,788 (320)
Mathematical Optimization of Treatment Schedules [PDF]
International Journal of Radiation Oncology*Biology*Physics, 2016 In the past decades mathematical optimization has found its way into radiation therapy and has made profound practice changing impact. Today, virtually all advanced treatment delivery methods, such as IMRT, VMAT, tomotherapy, LDR/HDR brachytherapy, proton therapy, are based on some form of optimization approach that changes the treatment variables ...
Bram L. Gorissen +2 more
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A new iteration method for solving space fractional coupled nonlinear Schrödinger equations [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2022 A linearly implicit difference scheme for the space fractional coupled nonlinear Schrödinger equation is proposed. The resulting coefficient matrix of the discretized linear system consists of the sum of a complex scaled identity and a symmetric positive ...
H. Aslani +2 more
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Optimal Sparse Control Formulation for Reconstruction of Noise-Affected Images
Axioms, 2023 We discuss the optimal control formulation for enhancement and denoising of satellite multiband images and propose to take it in the form of an L1 control problem for a quasi-linear parabolic equation with a nonlocal p[u] Laplacian and with a cost ...
Peter Kogut, Yaroslav Kohut
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Supervised classification and mathematical optimization [PDF]
Computers & Operations Research, 2013 Data Mining techniques often ask for the resolution of optimization problems. Supervised Classification, and, in particular, Support Vector Machines, can be seen as a paradigmatic instance. In this paper, some links between Mathematical Optimization methods and Supervised Classification are emphasized.
Carrizosa Priego, Emilio José +1 more
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Journal of Environmental Engineering and Landscape Management, 2022 This paper describes how the multilayer perceptron neural network (MLPNN) trained by the Broyden-Fletcher-Goldfarb-Shanno (BFGS) quasi-newton back-propagation approach was used to estimate heavy metal concentrations: Aluminum (Al), Lead (Pb), Copper (Cu)
Rachid El Chaal +1 more
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Parametric Estimation of Diffusion Processes: A Review and Comparative Study
Mathematics, 2021 This paper provides an in-depth review about parametric estimation methods for stationary stochastic differential equations (SDEs) driven by Wiener noise with discrete time observations.
Alejandra López-Pérez +2 more
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Dynamic Shortest Paths Methods for the Time-Dependent TSP
Algorithms, 2021 The time-dependent traveling salesman problem (TDTSP) asks for a shortest Hamiltonian tour in a directed graph where (asymmetric) arc-costs depend on the time the arc is entered.
Christoph Hansknecht +2 more
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On the stabilization of a coupled fractional ordinary and partial differential equations† [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2020 We investigate the stabilization problem of a cascade of a fractional ordinary differential equation (FODE) and a fractional diffusion (FD) equation, where the interconnections are of Neumann type.
S. Amiri, M. Keyanpour
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Discrete Dynamics in Nature and Society, 2020 In this paper, we consider a hybrid network model of delayed predator-prey Gompertz systems with impulsive diffusion between two patches, in which the patches represent nodes of the network such that the prey population interacts locally in each patch ...
Li Xiang +4 more
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Optimized and Personalized Phlebotomy Schedules for Patients Suffering From Polycythemia Vera
Frontiers in Physiology, 2020 Polycythemia vera (PV) is a slow-growing type of blood cancer, where the production of red blood cells (RBCs) increase considerably. The principal treatment for targeting the symptoms of PV is bloodletting (phlebotomy) at regular intervals based on data ...
Patrick Lilienthal +4 more
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