Результаты поиска по 'optimal method':
Найдено статей: 133
  1. Bogdanov A.V., Thurein Kyaw L.
    Query optimization in relational database systems and cloud computing technology
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 649-655

    Optimization is the heart of relational Database Management System (DMBS). Its can analyzes the SQL statements and determines the most efficient access plan to satisfy every query request. Optimization can solves this problem and analyzes SQL statements specifying which tables and columns are available. And then request the information system and statistical data stored in the system directory, to determine the best method of solving the tasks required to comply with the query requests.

    Keywords: query optimization, cloud computing technology, relational database systems.
    Views (last year): 1.
  2. Smirnov S.A., Voloshinov V.V.
    Pre-decomposition of discrete optimization problems to speed up the branch and bound method in a distributed computing environment
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 719-725

    The paper presents an implementation of branch and bound algorithm employing coarse grained parallelism. The system is based on CBC (COIN-OR branch and cut) open-source MIP solver and inter-process communication capabilities of Erlang. Numerical results show noticeable speedup in comparison to single-threaded CBC instance.

    Keywords: branch and bound algorithm, coarse grained parallelism.
    Views (last year): 2. Citations: 2 (RSCI).
  3. Shefov K.S., Stepanova M.M.
    An implementation of a parallel global minimum search algorithm with an application to the ReaxFF molecular dynamic force field parameters optimization
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 745-752

    Molecular dynamic methods that use ReaxFF force field allow one to obtain sufficiently good results in simulating large multicomponent chemically reactive systems. Here is represented an algorithm of searching optimal parameters of molecular-dynamic force field ReaxFF for arbitrary chemical systems and its implementation. The method is based on the multidimensional technique of global minimum search suggested by R.G. Strongin. It has good scalability useful for running on distributed parallel computers.

    Keywords: numerical simulation, molecular dynamics, reactive force field, chemically reactive systems, parameter optimization, parallel algorithm, absolute extremum search.
    Views (last year): 1. Citations: 1 (RSCI).
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