Search results for: GRASSHOPPER OPTIMIZATION ALGORITHM

• Dynamic Route Discovery Using Modified Grasshopper Optimization Algorithm in Wireless Ad-Hoc Visible Light Communication Network

  Publication

  • S. Vadivel
  • S. Konda
  • K. R. Balmuri
  • A. Stateczny
  • B. D. Parameshachari

  - Electronics - Year 2021

  In recent times, visible light communication is an emerging technology that supports high speed data communication for wireless communication systems. However, the performance of the visible light communication system is impaired by inter symbol interference, the time dispersive nature of the channel, and nonlinear features of the light emitting diode that significantly reduces the bit error rate performance. To address these problems,...

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• Point cloud unification with optimization algorithm

  Publication

  • W. Błaszczak-bąk
  • A. Sobieraj-Żłobińska

  - Technical Sciences / University of Warmia and Mazury in Olsztyn - Year 2015

  Terrestrial laser scanning is a technology that enables to obtain three-dimensional data – an accurate representation of reality. During scanning not only desired objects are measured, but also a lot of additional elements. Therefore, unnecessary data is being removed, what has an impact on efficiency of point cloud processing. It can happen while single point clouds are displayed – user decides what he wants...

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• Arterial cannula shape optimization by means of the rotational firefly algorithm

  Publication

  • K. Tesch
  • K. Kaczorowska-Ditrich

  - ENGINEERING OPTIMIZATION - Year 2016

  The article presents global optimization results of arterial cannula shapes by means of the newly modified firefly algorithm. The search for the optimal arterial cannula shape is necessary in order to minimize losses and prepare the flow that leaves the circulatory support system of a ventricle (i.e. blood pump) before it reaches the heart. A modification of the standard firefly algorithm, the so-called rotational firefly algorithm,...

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• A Tabu Search Algorithm for Optimization of Survivable Overlay Computing Systems

  Publication

  • K. Walkowiak
  • W. Charewicz
  • M. Donajski
  • J. Rak

  - Advances in Intelligent Systems and Computing - Year 2012

  Paradygmat obliczeń rozproszonych ostatnio zyskuje coraz większą uwagę, ponieważ zarówno instytucje przemysłowe, jak i uczelnie wymagają coraz większej mocy obliczeniowej do przetwarzania i analizy danych. Z uwagi na dużą podatność systemów obliczeń na awarie różnych typów (podobnie do systemów sieciowych), gwarancje przeżywalności niniejszych systemów są nieodzowne w celu zapewnienia nieprzerwanego działania usług. Z tego powodu,...

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• Optimal Power Flow Problem Using Particle Swarm Optimization Algorithm

  Publication

  • M. Patil
  • D. Vyas
  • K. Lehru
  • R. Jain
  • V. Mahajan

  - Year 2019

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• Innovative optimization algorithm of variable speed pumps in district heating systems.

  Publication

  • A. Augusiak
  • K. Dziedzicki

  - ARCHIWUM ENERGETYKI / ARCHIVES OF ENERGETICS - Year 2003

  W referacie przedstawiono innowacyjny algorytm matematyczny optymalizacji pracy pomp zmienno prędkościowych w systemach ciepłowniczych. Algorytm wykorzystuje procedurę iterecyjnego wyznaczania parametrów pracy pomp, których charakterystyki są linearyzowane odcinkami w układzie dwóch współrzędnych. Do rozwiązania modelu całkowitoliczbowego zaproponowano wykorzystanie systemu GAMS. W pracy przedstawiono podstawy metodologiczne i...

• A Biased-Randomized Iterated Local Search Algorithm for Rich Portfolio Optimization

  Publication

  • R. Kizys 
  • A. Juan
  • B. Sawik
  • L. Calvet 

  - Applied Sciences-Basel - Year 2019

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• Design and optimization of IIR digital filters with non-standard characteristics using continuous ant colony optimization algorithm

  Publication

  • A. Słowik
  • M. Białko

  - Year 2008

  W pracy przedstawiono metodę projektowania i optymalizacji stabilnych filtrów cyfrowych IIR o niestandardowych charakterystykach amplitudowych, przy zastosowaniu ''mrówkowego'' algorytmu optymalizującego ACO. W proponowanej metodzie (nazwanej ACO-IIRFD), wprowadzono dynamiczne zmiany parametrów. Dzięki tym zmianom parametrów filtru cyfrowego możliwe jest uzyskanie małych odchyłek charakterystyk między założonymi i aktualnymi....

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• 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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• Numerically efficient algorithm for compact microwave device optimization with flexible sensitivity updating scheme

  Publication

  • A. Pietrenko-Dąbrowska
  • S. Kozieł

  - INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING - Year 2019

  An efficient trust-region algorithm with flexible sensitivity updating management scheme for electromagnetic (EM)-driven design optimization of compact microwave components is proposed. During the optimization process, updating of selected columns of the circuit response Jacobian is performed using a rank-one Broyden formula (BF) replacing finite differentiation (FD). The FD update is omitted for directions sufficiently well aligned...

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