Nonlinear Systems Optimization and Statistics group  
 
    
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  GO - Global Optimization  
 

 

   

Research on global optimization aims to increase solution accuracy and to guarantee convergence to global solutions. Other short term purposes include linear constraints and discrete variables handling. Multi-local optimization procedures to be used in reduction type methods for semi-infinite programming problems continue under investigation and a practical problem in Astrophisics, with 200 stars, will be ran with the parallel version of PSwarm code.

 

Research Team

 

Edite M.G.P. Fernandes
A. Ismael F. Vaz
Ana Maria A.C. Rocha
Ana Isabel P.N. Pereira

 

 

   

Publications

 

Pereira, A.I.P.N.; Fernandes, E.M.G.P., A study of simulated annealing variants, XXVIII Congreso de Estadística e Investigación Operativa, ISBN: 84-689-0438-4 CD-ROM, 16 pp, Cádiz, 2004.

Pereira, A.I.P.N.; Fernandes, E.M.G.P., A new algorithm for identifying all global maximizers based on simulated annealing, 6th. World Congress of Structural and Multidisciplinary Optimization, J. Herskowitz et al. (Eds.), ISBN 85-285-0070-5, 15 pp, Brazil, 2005.

Vaz, A.I.F.; Pereira, A.I.P.N.; Fernandes, E.M.G.P., Particle swarm and simulated annealing for multi-global optimization, 6th. WSEAS International Conference on Evolutionary Computing, ISBN: 960-8457-26-2, CD-ROM (117-122), Lisboa, 2005.

Vaz, A.I.F.; Pereira, A.I.P.N.; Fernandes, E.M.G.P., Particle swarm and simulated annealing for multi-global optimization, WSEAS Transactions on Information Science and Applications, V. 5 (2), 534-539, 2005 (in SCOPUS) nc=(-,-,2).

Vaz, A.I.F.; Fernandes, E.M.G.P., Particle swarm algorithms for multi-local optimization, I Congresso de Estatística e Investigação Operacional da Galiza e Norte de Portugal/VII Congreso Galego de Estatística e Investigación de Operacións, ISBN: 972-99841-0-7, CD-ROM, 6 pp, Guimarães, 2005.

Vaz, A.I.F.; Fernandes, E.M.G.P., Nonlinear constrained particle swarm optimization, Technological and Economic Development of Economy, ISSN 1392-8619, V. XII (1) 30-36, 2006 (in SCOPUS).

Pereira, A.I.P.N.; Fernandes, E.M.G.P., A stretched simulated annealing algorithm for locating all global maximizers, 2006 Conference on Computational and Mathematical Methods on Science and Engineering, R. Criado, D. Estep, M.A. Pérez Garcia e J. Vigo-Aguiar (Eds.), ISBN: 84-611-1090-0; 978-84-611-1090-2, Vol II (520-542), Madrid, 2006.

Vaz, A.I.F.; Vicente, L.N., A particle swarm pattern search method for bound constrained global optimization. Journal of Global Optimization , V. 39, 197-219, 2007(IP=0.662)(CHl=7.3).

Rocha, A.M.A.C.; Fernandes, E.M.G.P., forthcoming, A modified electromagnetism-like algorithm based on a pattern search method, European Computing Conference, 6 pp, Springer-Verlag, 2007.

Rocha, A.M.A.C.; Fernandes, E.M.G.P., A new electromagnetism-like algorithm with a population shrinking strategy, 6 th. WSEAS International Conference on System Science and Simulation in Engineering, Venice, 6 pp, 2007.

 

   

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Poster

     

 

 
 
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