Sökning: "Algorithm Configuration"

Visar resultat 1 - 5 av 114 avhandlingar innehållade orden Algorithm Configuration.

1. 1. Automatic Instance-based Tailoring of Parameter Settings for Metaheuristics

   Författare :Felix Dobslaw; Theo Kanter; Åke Malmberg; Thomas Bartz-Beielstein; Mittuniversitetet; []
   Nyckelord :Algorithm Configuration; Parameter Tuning; Parameter Control; Metaheuristics;

   Sammanfattning : Many industrial problems in various fields, such as logistics, process management, orproduct design, can be formalized and expressed as optimization problems in order tomake them solvable by optimization algorithms. However, solvers that guarantee thefinding of optimal solutions (complete) can in practice be unacceptably slow. LÄS MER

3. 2. Active Noise Control of Enclosed Sound Fields Optimising the Performance

   Författare :Per Sjösten; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optimising actuator and sensor positions; hybrid controller for anc; fast feedforward algorithm; multiple-error algorithm; active noise control; complex lms; multichannel feedforward algorithm; simulated annealing; mean-field annealing; multiple-reference controller;

   Sammanfattning : Active noise control is the art of reducing a primary unwanted sound field by interference with an actively created secondary sound field. To achieve high reduction, it is crucial to obtain both temporal and spatial matching between the primary and the secondary sound fields. LÄS MER

4. 3. Configuration study of large wind parks

   Författare :Stefan Lundberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; production cost; PCC; power quality; offshore; HVDC; wind parks; DC DC converters; control; losses; configurations; flicker; energy capture;

   Sammanfattning : In this thesis, layouts of various large-scale wind parks, using both AC as well as DC, are investigated. Loss modelling of the wind park components as well as calculations of the energy capture of the turbines using various electrical systems are performed, and the energy production cost of the various park configurations is determined. LÄS MER

5. 4. Stiffness modification of tensegrity structures

   Författare :Seif Dalilsafaei; Anders Eriksson; Karl-Gunnar Olsson; KTH; []
   Nyckelord :tensegrity; boom; finite element analysis; genetic algorithm; flexibility analysis; active structure; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Although the concept of tensegrity structures was invented in the beginning of the twentieth century, the applications of these structures are limited, partially due to their low stiffness. The stiffness of tensegrities comes from topology, configuration, pre-stress and initial axial element stiffnesses. LÄS MER

7. 5. Stiffness and vibration properties of slender tensegrity structures

   Författare :Seif Dalil Safaei; Gunnar Tibert; René Motro; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tensegrity booms; Tensegrity grids; Tensegrity power lines; Finite element analysis; Genetic algorithm; Flexibility analysis; Form-finding; Pre-stress design; Optimization;

   Sammanfattning : The stiffness and frequency properties of tensegrity structures are functions of the pre-stress, topology, configuration, and axial stiffness of the elements. The tensegrity structures considered are tensegrity booms, tensegrity grids, and tensegrity power lines.A study has been carried out on the pre-stress design. LÄS MER