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Abstract Fractal

2nd Workshop on Combinatorial Optimization

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The 2nd Workshop on Combinatorial Optimization will take place on March 11th, 2022. This Workshop is organized by CEGIST’s research area MOSAIC, in a joint collaboration with CMAFcIO (The Center for Mathematics, Fundamental Applications and Operations Research the Faculty of Sciences of the University of Lisbon), and will occur in an online format - zoom link here. The Workshop will once again gather specialists in the field of Combinatorial Optimization, from several countries, to present and discuss recent research work around this subject, following the work established in the first edition of the Workshop, that took place on past December. 

Professor José Rui Figueira, President of CEGIST, will present the Opening Session, alongside Professor Luís Gouveia, Coordinator of CMAFcIO. CEGIST members Mariana Mesquita da Cunha and Daniel Santos will also present their recent work. 

16:25 - 16:30 Opening
José Rui Figueira, coordinator of CEG-IST and Luís Gouveia, coordinator of CMAFcIO

16:30 - 17:00 Optimizing the extraction of timber from a large forest
Miguel Constantino (CMAFcIO, Ciências, ULisboa)
joint work with: Marta Mesquita (CMAFcIO, ISA, ULisboa), Susete Marques (Centro de Estudos Florestais and Laboratory Terra, ISA, ULisboa) and José G. Borges (Centro de Estudos Florestais and Laboratory Terra, ISA, ULisboa)

17:00 - 17:30 ε-constraint based representation methods for multi-objective integer programming
Mariana Mesquita da Cunha (CEG-IST, IST, ULisboa)
joint work with: José Rui Figueira (CEG-IST, IST, ULisboa) and Ana Paula Barbosa-Póvoa (CEG-IST, IST, ULisboa)

17:30 - 18:00 Decision Space Robust Representations for Discrete Multi-Objective Optimization Problems
Michael Stiglmayr (School of Mathematics and Natural Sciences, University of Wuppertal)
joint work with: José Rui Figueira (CEG-IST, IST, ULisboa), Kathrin Klamroth (School of Mathematics and Natural Sciences, University of Wuppertal), Luis Paquete (Department of Informatics Engineering, CISUC, University of Coimbra) and Britta Schulze (School of Mathematics and Natural Sciences, University of Wuppertal)

18:00 - 18:30 Coffee  Break

18:30 - 19:00 A decomposition algorithm for the robust berth allocation and quay crane scheduling problem under uncertainty  
Filipe Rodrigues (ISEG, ULisboa)
joint work with: Agostinho Agra (University of Aveiro)

19:00 - 19:30 Designing Master Surgery Schedules with Downstream Unit Integration via Stochastic Programming
Daniel Santos (CEG-IST, IST, ULisboa)
joint work with: Inês Marques 

19:30 - 20:00 New Piecewise Relaxation with a Logarithmic Partitioning Scheme for Quadratically Constrained Problems 
Pedro Castro (CMAFcIO, ULisboa)