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Fletta eftir efnisorði "Reiknirit"

Fletta eftir efnisorði "Reiknirit"

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    Distribution network reconfiguration using feasibility-preserving evolutionary optimization 
    landeros, alberto; Koziel, Slawomir; Abdel-Fattah, Mohamed (Springer Science and Business Media LLC, 2018-12-13)
    Distribution network reconfiguration (DNR) can significantly reduce power losses, improve the voltage profile, and increase the power quality. DNR studies require implementation of power flow analysis and complex optimization procedures capable of ...
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    A Generalized SDP Multi-Objective Optimization Method for EM-Based Microwave Device Design 
    Liu, Ying; Cheng, Qingsha S.; Koziel, Slawomir (MDPI AG, 2019-07-11)
    In this article, a generalized sequential domain patching (GSDP) method for efficient multi-objective optimization based on electromagnetics (EM) simulation is proposed. The GSDP method allowing fast searching for Pareto fronts for two and three ...
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    Improved distributed algorithms for coloring interval graphs with application to multicoloring trees 
    Halldórsson, Magnús M.; Konrad, Christian (Elsevier BV, 2020-04)
    We give a distributed (1+eps)-approximation algorithm for the minimum vertex coloring problem on interval graphs, which runs in the LOCAL model and operates in O((1/eps) log* n) rounds. If nodes are aware of their interval representations, then the ...
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    Leader election in SINR model with arbitrary power control 
    Halldórsson, Magnús M.; Holzer, Stephan; Markatou, Evangelia Anna; Lynch, Nancy (Elsevier BV, 2020-04)
    We consider the Leader Election Problem in the Signal-to-Interference-plusNoise-Ratio (SINR) model where nodes can adjust their transmission power. We show that in this setting it is possible to elect a leader in two communication rounds, with high ...
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    Recent developments in simulation-driven multi-objective design of antennas 
    Koziel, Slawomir; Bekasiewicz, Adrian (Walter de Gruyter GmbH, 2015-09-23)
    This paper addresses computationally feasible multi-objective optimization of antenna structures. We review two recent techniques that utilize the multi-objective evolutionary algorithm (MOEA) working with fast antenna replacement models (surrogates) ...
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    Rule Formats for Nominal Process Calculi 
    Aceto, Luca; Fabregas, Ignacio; Garcia-Perez, Alvaro; Ingolfsdottir, Anna; Ortega-Mallen, Yolanda (2019-10-14)
    The nominal transition systems (NTSs) of Parrow et al. describe the operational semantics of nominal process calculi. We study NTSs in terms of the nominal residual transition systems (NRTSs) that we introduce. We provide rule formats for the specifications ...
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    SADEA-II: A generalized method for efficient global optimization of antenna design 
    Liu, Bo; Koziel, Slawomir; Ali, Nazar (Oxford University Press (OUP), 2016-11-20)
    Efficiency improvement is of great significance for simulation-driven antenna design optimization methods based on evolutionary algorithms (EAs). The two main efficiency enhancement methods exploit data-driven surrogate models and/or multi-fidelity ...
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    Suppressing Side-Lobes of Linear Phased Array of Micro-Strip Antennas with Simulation-Based Optimization 
    Ogurtsov, Stanislav; Kozieł, Sławomir; Bekasiewicz, Adrian (Walter de Gruyter GmbH, 2016-05-31)
    A simulation-based optimization approach to design of phase excitation tapers for linear phased antenna arrays is presented. The design optimization process is accelerated by means of Surrogate-Based Optimization (SBO); it uses a coarse-mesh surrogate ...