Results 21 to 30 of about 5,361,319 (303)
Flexible Wolf Pack Algorithm for Dynamic Multidimensional Knapsack Problems
Research, 2020 Optimization problems especially in a dynamic environment is a hot research area that has attracted notable attention in the past decades. It is clear from the dynamic optimization literatures that most of the efforts have been devoted to continuous ...
Husheng Wu, Renbin Xiao
doaj +1 more source
A variational nodal formulation for multi-dimensional unstructured neutron diffusion problems
Nuclear Engineering and Technology, 2023 A variational nodal method (VNM) with unstructured-mesh is presented for solving steady-state and dynamic neutron diffusion equations. Orthogonal polynomials are employed for spatial discretization, and the stiffness confinement method (SCM) is ...
Qizheng Sun +5 more
doaj +1 more source
Mathematics, 2023 The main aim of this article is to propose an adaptive method to solve multidimensional parabolic problems with fractional power elliptic operators.
Raimondas Čiegis +3 more
doaj +1 more source
An iterative variable-based fixation heuristic for the 0-1 multidimensional knapsack problem [PDF]
, 2008 An iterative scheme which is based on a dynamic fixation of the variables is developed to solve the 0-1 multidimensional knapsack problem. Such a scheme has the advantage of generating memory information, which is used on the one hand to choose the ...
Salhi, Said +2 more
core +1 more source
Computational Methods for Multidimensional Neutron Diffusion Problems
Science and Technology of Nuclear Installations, 2009 A neutronic module for the solution of two-dimensional steady-state multigroup diffusion problems in nuclear reactor cores is developed. The module can produce both direct fluxes as well as adjoints, that is, neutron importances.
Song Han, Sandra Dulla, Piero Ravetto
doaj +1 more source
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017 In early works the author studied the Dirichlet and Poincaré problems for multidimensional hyperbolic equations, which shows the well-posedness of these problems in cylindrical domains, significantly dependent on the height of the considered cylindrical ...
Serik A Aldashev
doaj +1 more source
Solving problems of agricultural production development by modeling using the cluster analysis method [PDF]
BIO Web of Conferences, 2023 The article outlines the need to apply a systematic approach to the analysis and solution of agricultural production development problems. The system approach implementation is carried out using a multidimensional data analysis method – the cluster ...
Lubova Tatiana +4 more
doaj +1 more source
THE ADDITIVE CONSTANT PROBLEM IN MULTIDIMENSIONAL SCALING [PDF]
ETS Research Bulletin Series, 1954 ABSTRACTThe problem of choosing the correct additive constant to convert relative inter‐stimulus distances to absolute inter‐stimulus distances in multidimensional scaling is investigated. An artificial numerical example is constructed and various trial values of the constant are inserted to demonstrate the effect on the multidimensional map of making ...
Messick, Samuel J., Abelson, Robert P.
openaire +2 more sources
IEEE AccessThe Human Development Index is a complex social phenomenon composed of multiple criteria. While many studies are concerned with dealing with outliers in the representation of this composite indicator, the problem of extreme values is overlooked.
Matheus Pereira Liborio +4 more
doaj +1 more source
Urban ScienceUrban infrastructure, such as water supply networks, sewage systems, and electricity networks, is essential for the functioning of cities and, consequently, for the well-being of citizens.
Matheus Pereira Libório +6 more
doaj +1 more source