Search results for: PARETO OPTIMISATION

• Optymalizacja: sztuka czy rzemiosło?

  Publication

  • S. Grymek
  • T. Kiczkowiak

  - Year 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

  Journals

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

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

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Antennas and Wireless Propagation Letters - Year 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

  Publication

  • S. Unnsteinsson
  • S. Kozieł

  - INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING - Year 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

  Publication

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

  - Year 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

  Publication

  • S. Kozieł
  • A. Bekasiewicz

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

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - Year 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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• Low-Cost Multi-Objective Optimization of Antennas By Means Of Generalized Pareto Ranking Bisection Algorithm

  Publication

  • S. Unnsteinsson
  • S. Kozieł

  - Year 2018

  This paper introduces a generalized Pareto ranking bisection algorithm for low-cost multi-objective design optimization of antenna structures. The algorithm allows for identifying a set of Pareto optimal sets of parameters (that represent the best trade-offs between considered objectives) by iterative partitioning of the intervals connecting previously found designs and executing a Pareto-ranking-based poll search. The initial...

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

  Publication

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - IEEE Access - Year 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

  Publication

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

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

  Publication

  • Z. Domachowski

  - Polish Maritime Research - Year 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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• Constrained multi-objective optimization of compact microwave circuits by design triangulation and pareto front interpolation

  Publication

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - EUROPEAN JOURNAL OF OPERATIONAL RESEARCH - Year 2022

  Development of microwave components is an inherently multi-objective task. This is especially pertinent to the design closure stage, i.e., final adjustment of geometry and/or material parameters carried out to improve the electrical performance of the system. The design goals are often conflicting so that the improvement of one normally leads to a degradation of others. Compact microwave passives constitute a representative case:...

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• Recent advances in rapid multiobjective optimization of expensive simulation models in microwave and antenna engineering by Pareto front exploration

  Publication

  • S. Kozieł
  • A. Bekasiewicz

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

  Practical engineering design problems are inherently multiobjective, that is, require simultaneous control of several (and often conflicting) criteria. In many situations, genuine multiobjective optimization is required to acquire comprehensive information about the system of interest. The most popular solution techniques are populationbased metaheuristics, however, they are not practical for handling expensive electromagnetic...

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• Multi-objective optimization of compact UWB impedance matching transformers using Pareto front exploration and adjoint sensitivities

  Publication

  • S. Kozieł
  • A. Bekasiewicz
  • Q. Cheng

  - Year 2016

  In this paper, a technique for fast multi-objective optimization of impedance matching transformers has been presented. In our approach, a set of alternative designs that represent the best possible trade-offs between conflicting objectives (here, the maximum reflection level within a frequency band of interest and the circuit size) is identified by directly exploring the Pareto front. More specifically, the subsequent Pareto-optimal...

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• JOURNAL OF COMBINATORIAL OPTIMIZATION

  Journals

  ISSN: 1382-6905 , eISSN: 1573-2886

• Discrete Optimization

  Journals

  ISSN: 1572-5286 , eISSN: 1873-636X

• Journal of Optimization

  Journals

  ISSN: 2356-752X , eISSN: 2314-6486

• OPTIMIZATION AND ENGINEERING

  Journals

  ISSN: 1389-4420 , eISSN: 1573-2924

• Optimization Letters

  Journals

  ISSN: 1862-4472 , eISSN: 1862-4480

• EM-Driven Size Reduction and Multi-Criterial Optimization of Broadband Circularly-Polarized Antennas Using Pareto Front Traversing and Design Extrapolation

  Publication

  • U. Ubaid
  • M. Al-hasan
  • S. Kozieł
  • I. Mabrouk

  - Scientific Reports - Year 2022

  Maintaining small size has become an important consideration in the design of contemporary antenna structures. In the case of broadband circularly polarized (CP) antennas, miniaturization is a challenging process due to the necessity of simultaneous handling of electrical and field properties (reflection, axial ratio, gain), as well as ensuring sufficient frequency range of operation, especially at the lower edge of the antenna...

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• SIMULIA Optimization Day

  Events

  30-05-2019 09:00 - 30-05-2019 14:00

  Centrum Informatyczne TASK oraz BUDSOFT zapraszają na seminarium "SIMULIA Optimization Day". Więcej informacji na stronie internetowej: https://task.gda.pl/nowosci/2019/simulia-optimization-day/

• RSM for pre-treatment optimisation

  Open Research Data

  open access

  • K. Kucharska
  • J. Gębicki
  • E. Słupek
  • P. Makoś-Chełstowska

  Box Behnken Design was prepared to define optimal contitions for biomass pretreatment

• BIOINFO Computational Optimization

  Journals

  ISSN: 2249-5533

• Pacific Journal of Optimization

  Journals

  ISSN: 1348-9151

• JOURNAL OF GLOBAL OPTIMIZATION

  Journals

  ISSN: 0925-5001 , eISSN: 1573-2916

• OPTIMIZATION METHODS & SOFTWARE

  Journals

  ISSN: 1055-6788 , eISSN: 1029-4937

• Results in Control and Optimization

  Journals

  eISSN: 2666-7207

• APPLIED MATHEMATICS AND OPTIMIZATION

  Journals

  ISSN: 0095-4616 , eISSN: 1432-0606

• SIAM JOURNAL ON OPTIMIZATION

  Journals

  ISSN: 1052-6234 , eISSN: 1095-7189

• Continuous Optimisation Algorithms

  Publication

  • K. Tesch

  - Year 2016

  Książka poświęcona jest zagadnieniom optymalizacji ciągłej. Oprócz klasycznych algorytmów gradientowych omawiane są w współczesne algorytmy bezgradientowe, które stosowane są z powodzeniem w optymalizacji globalnej. Większość prezentowanych algorytmów określona może być mianem metaheurystycznych. Zaliczyć do nich można metody optymalizacji inspirowane procesami zachodzącymi w przyrodzie, które dalej można dzielić na inspirowane...

• Hierarchiczna Pareto-optymalizacja obserwatorów detekcyjnych

  Publication

  • Z. Kowalczuk
  • T. Białaszewski

  - Year 2009

  W niniejszym rozdziale omawiana jest nowa metoda nieostrego, eksperckiego uporządkowania funkcji kryterialnych odpowiednich dla ewolucyjnych i chmarowych podejść do (iteracyjnego) rozwiązywania wielokryterialnych zadań optymalizacyjnych, w których korzysta się z idei rodzajnika genetycznego opartego na podziale zbioru funkcji celu na odpowiednie podzbiory (subkryteria). Podział ten odnosi się do pokrewieństwa w przestrzeni kryterialnej...

• Optimization of Automata

  Publication

  • J. Daciuk

  - Year 2014

  This book is conceived as an effort to gather all algorithms and methods developed by the author of the book that concern three aspects of optimization of automata: incrementality, hashing and compression. Some related algorithms and methods are given as well when they are needed to complete the picture.

• Complexity of resilient network optimisation

  Publication

  • M. Żotkiewicz
  • M. Pióro
  • A. Tomaszewski

  - European Transactions on Telecommunications - Year 2009

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• Trim Optimisation - Theory and Practice

  Publication

  • M. Reichel
  • A. Minchev
  • N. Larsen

  - TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation - Year 2014

  Force Technology has been working intensively with trim optimisation tests for almost last 10 years. Focus has primarily been put on the possible power savings and exhaust gases reduction. This paper describes the trim optimisation process for a large cargo vessel. The physics behind changed propulsive power is described and the analyses in order to elaborate the optimum trimmed conditions are presented. Different methods for prediction...

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• Stochastic optimisation algorithm for optimisation of controller parameters for control of dissolved oxygen in wastewater treatment plant

  Publication

  • R. Piotrowski
  • M. Wonia
  • A. Wonia

  - Journal of Water Process Engineering - Year 2023

  Wastewater treatment plants (WWTPs) are very important facilities for mankind. They enable the removal and neutralisation of man-made pollutants. Therefore, it is important for wastewater treatment plants to operate as efficiently as possible so that the level of pollutants in the treated wastewater meets specific requirements. This paper concerns the design of a hierarchical nonlinear adaptive control system for dissolved oxygen...

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• JOURNAL OF INFORMATION & OPTIMIZATION SCIENCES

  Journals

  ISSN: 0252-2667 , eISSN: 2169-0103

• Fuzzy Optimization and Decision Making

  Journals

  ISSN: 1568-4539 , eISSN: 1573-2908

• EURO Journal on Computational Optimization

  Journals

  ISSN: 2192-4406 , eISSN: 2192-4414

• BIOINFO Optimization Theory and Applications

  Journals

  ISSN: 2249-5495

• Statistics, Optimization and Information Computing

  Journals

  ISSN: 2311-004X

• Numerical Algebra Control and Optimization

  Journals

  ISSN: 2155-3289 , eISSN: 2155-3297

• NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION

  Journals

  ISSN: 0163-0563 , eISSN: 1532-2467

• Process Integration and Optimization for Sustainability

  Journals

  eISSN: 2509-4246

• Journal of Industrial and Management Optimization

  Journals

  ISSN: 1547-5816 , eISSN: 1553-166X

• Journal of Optimization in Industrial Engineering

  Journals

  ISSN: 2251-9904 , eISSN: 2423-3935

• Journal of Applied and Numerical Optimization

  Journals

  ISSN: 2562-5527 , eISSN: 2562-5535

• JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS

  Journals

  ISSN: 0022-3239 , eISSN: 1573-2878

• SIAM JOURNAL ON CONTROL AND OPTIMIZATION

  Journals

  ISSN: 0363-0129 , eISSN: 1095-7138

• What entrepreneurs think about tax optimization?

  Open Research Data

  open access

  • P. Kasprzak
  • P. Dębniak

  The study conducted on a group of 259 entrepreneurs concerned the behavioral attitudes of business owners regarding their opinion on tax optimization. From the study we will learn, among others, how tax optimization is defined according to entrepreneurs, their attitude towards it, as well as what optimization actions they have taken so far.

• Optimisation of inland vessels' route speed.

  Publication

  • J. Michalski

  - Year 2004

  W pracy przedstawiono rezultaty badań dotyczących metody doboru prędkości i oceny zapotrzebowanej mocy napędu statków śródlądowych, przydatnej zarówno we wstępnych etapach projektowania, jak i w zarządzaniu eksploatacją taboru śródlądowego, np. przy ustalaniu harmonogramu rejsów pasażerskich statków wycieczkowych. Do rozwiązania problemu zastosowano metodę optymalizacji nieliniowej z ograniczeniami, opartą na minimalizacji kosztu...