Wyniki wyszukiwania dla: PARETO OPTIMISATION

• Optymalizacja: sztuka czy rzemiosło?

  Publikacja

  • S. Grymek
  • T. Kiczkowiak

  - Rok 2012

  W pracy przedstawiono przyczyny niewielkiego zainteresowania zastosowaniem optymalizacji w praktyce inżynierskiej oraz przykłady jej skutecznego zastosowania. Wyciągnięto wniosek, że najskuteczniejszym sposobem spopularyzowania tego narzędzia jest tworzenie specjalistycznego oprogramowania wykorzystującego inżynierską wiedzę ekspercką.

• ENGINEERING OPTIMIZATION

  Czasopisma

  ISSN: 0305-215X , eISSN: 1029-0273

• Pareto Ranking Bisection Algorithm for Expedited Multi-Objective Optimization of Antenna Structures

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Antennas and Wireless Propagation Letters - Rok 2017

  The purpose of this letter is introduction of a novel methodology for expedited multi-objective design of antenna structures. The key component of the presented approach is fast identification of the initial representation of the Pareto front (i.e., a set of design representing the best possible trade-offs between conflicting objectives) using a Pareto-ranking bisection algorithm. The algorithm finds a discrete set of Pareto-optimal...

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• Generalized Pareto ranking bisection for computationally feasible multi-objective antenna optimization

  Publikacja

  • S. Unnsteinsson
  • S. Kozieł

  - INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING - Rok 2018

  Multi-objective optimization (MO) allows for obtaining comprehensive information about possible design trade-offs of a given antenna structure. Yet, executing MO using the most popular class of techniques, population-based metaheuristics, may be computationally prohibitive when full-wave EM analysis is utilized for antenna evaluation. In this work, a low-cost and fully deterministic MO methodology is introduced. The proposed generalized...

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• Design space reduction and variable-fidelity EM simulations for feasible Pareto optimization of antennas

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł
  • W. Zieniutycz

  - Rok 2014

  A computationally efficient procedure for multi-objective optimization of antenna structures is presented. In our approach, a response surface approximation (RSA) model created from sampled coarse-discretization EM antenna simulations is utilized to yield an initial set of Pareto-optimal designs using a multi-objective evolutionary algorithm. The final Pareto front representation for the high-fidelity model is obtained using surrogate-based...

• Rapid multi-objective design optimization of miniaturized impedance transformer by Pareto front exploration

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - Rok 2016

  Fast multi-objective optimization of compact impedance transformer is discussed. A set of alternative designs representing possible trade-offs between conflicting design criteria, i.e., electrical performance (here, wideband matching) and the structure size, is obtained through Pareto front exploration by means of surrogate-assisted methods.

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• Minimizing Greenhouse Gas Emissions From Ships Using a Pareto Multi-Objective Optimization Approach

  Publikacja

  • Z. Domachowski

  - Polish Maritime Research - Rok 2021

  To confront climate change, decarbonization strategies must change the global economy. According to statements made as part of the European Green Deal, maritime transport should also become drastically less polluting. As a result, the price of transport must reflect the impact it has on the environment and on health. In such a framework, the purpose of this paper is to suggest a novel method for minimizing emissions...

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• Rapid Multi-Criterial Antenna Optimization by Means of Pareto Front Triangulation and Interpolative Design Predictors

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - IEEE Access - Rok 2021

  Modern antenna systems are designed to meet stringent performance requirements pertinent to both their electrical and field properties. The objectives typically stay in conflict with each other. As the simultaneous improvement of all performance parameters is rarely possible, compromise solutions have to be sought. The most comprehensive information about available design trade-offs can be obtained through multi-objective optimization...

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• On Fast Multi-objective Optimization of Antenna Structures Using Pareto Front Triangulation and Inverse Surrogates

  Publikacja

  • A. Pietrenko-Dąbrowska
  • S. Kozieł
  • L. Leifsson

  - Rok 2021

  Design of contemporary antenna systems is a challenging endeavor, where conceptual developments and initial parametric studies, interleaved with topology evolution, are followed by a meticulous adjustment of the structure dimensions. The latter is necessary to boost the antenna performance as much as possible, and often requires handling several and often conflicting objectives, pertinent to both electrical and field properties...

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• Low-cost multi-objective optimization of antennas using Pareto front exploration and response features

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - Rok 2016

  In the paper, a procedure for low-cost multi-objective optimization of antenna structures is presented. Our approach is based on exploration of the Pareto front representing the best possible trade-offs between conflicting objectives, here, the structure size and its electrical performance. Starting from the design representing the best in-band reflection level, subsequent Pareto-optimal designs are identified through local constrained...

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