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Papers in international journals

  1. Cláudio Alves, José Valério de Carvalho, François Clautiaux, Jürgen Rietz, Multidimensional dual-feasible functions and fast lower bounds for the vector packing problem, European Journal of Operational Research, vol. 233, n.°1, pp. 43–63, 2014. [abstract, download]
  2. Raid Mansi, Cláudio Alves, José Valério de Carvalho, Said Hanafi, A hybrid heuristic for the multiple choice multidimensional knapsack problem, Engineering Optimization, vol. 45, n.°8, pp. 983–1004, 2013. [abstract, download]
  3. Raid Mansi, Cláudio Alves, José Valério de Carvalho, Said Hanafi, An exact algorithm for bilevel 0-1 knapsack problems, Mathematical Problems in Engineering, vol. 2012, Article ID 504713, 23 pages, 2012. [abstract, download]
  4. Jürgen Rietz, Cláudio Alves, José Valério de Carvalho, General properties of staircase and convex dual feasible functions, WSEAS Transactions on Information Science and Applications, vol. 8, n.°6, pp. 233–242, 2011. [abstract, download]
  5. Jürgen Rietz, Rita Macedo, Cláudio Alves, José Valério de Carvalho, Efficient lower bounding procedures with application in the allocation of virtual machines to data centers, WSEAS Transactions on Information Science and Applications, vol. 8, n.°4, pp. 157–170, 2011. [abstract, download]
  6. Jürgen Rietz, Cláudio Alves, José Valério de Carvalho, On the extremality of maximal dual feasible functions, Operations Research Letters, vol. 40, n.° 1, pp. 25–30, 2012. [abstract, download]
  7. Cláudio Alves, Pedro Brás, José Valério de Carvalho, Telmo Pinto, A variable neighborhood search algorithm for the leather nesting problem, Mathematical Problems in Engineering, vol. 2012, Article ID 254346, 28 pages, 2012. [abstract, download]
  8. Jürgen Rietz, Cláudio Alves, José Valério de Carvalho, Worst-case analysis of maximal dual feasible functions, Optimization Letters, vol. 6, n.°8, pp. 1687–1705, 2012. [abstract, download]
  9. Cláudio Alves, Pedro Brás, José Valério de Carvalho, Telmo Pinto, New constructive algorithms for leather nesting in the automotive industry, Computers and Operations Research, vol. 39, n.o 7, pp. 1487–1505, 2012. [abstract, download]
    Prize Isabel Themido/IO2013 from the Portuguese Association of Operations Research for the best paper published in the years 2011-2012 by members of this association.
  10. Rita Macedo, Cláudio Alves, José Valério de Carvalho, François Clautiaux, Said Hanafi, Solving the vehicle routing problem with time windows and multiple routes exactly using a pseudo-polynomial model, European Journal of Operational Research, vol. 214, n.o 3, pp. 536–545, 2011. [abstract, download]
  11. François Clautiaux, Cláudio Alves, José Valério de Carvalho, Jürgen Rietz, New stabilization procedures for the cutting stock problem, INFORMS Journal on Computing, vol. 23, n.o 4, pp. 530–545, 2011. [abstract, download]
  12. Rita Macedo, Cláudio Alves, José Valério de Carvalho, Arc-flow model for the two-dimensional guillotine cutting stock problem, Computers and Operations Research, vol. 37, n.o 6, pp. 991–1001, 2010. [abstract, download]
  13. Jürgen Rietz, Cláudio Alves, José Valério de Carvalho, Theoretical investigations on maximal dual feasible functions, Operations Research Letters, vol. 38, n.o3, pp. 174–178, 2010. [abstract, download]
  14. François Clautiaux, Cláudio Alves, José Valério de Carvalho, A survey of dual feasible and superadditive functions, Annals of Operations Research, vol. 179, n.o 1, pp. 317–342, 2010. [abstract, download]
  15. Cláudio Alves, Rita Macedo, José Valério de Carvalho, New lower bounds based on column generation and constraint programming for the pattern minimization problem, Computers and Operations Research, vol. 36, n.o 11, pp. 2944–2954, 2009. [abstract, download]
  16. Cláudio Alves, José Valério de Carvalho, New integer programming formulations and an exact algorithm for the ordered cutting stock problem, Journal of the Operational Research Society, vol. 59, n.o11, pp. 1520–1531, 2008. [abstract, download]
  17. Cláudio Alves, José Valério de Carvalho, A branch-and-price-and-cut algorithm for the pattern minimization problem, RAIRO Operations Research, vol. 42, n.o 4, pp. 435–453, 2008. [abstract, download]
  18. Cláudio Alves, José Valério de Carvalho, A stabilized branch-and-price-and-cut algorithm for the multiple length cutting stock problem, Computers and Operations Research, vol. 35, n.o4, pp. 1315–1328, 2008. [abstract, download]
  19. Cláudio Alves, José Valério de Carvalho, Accelerating column generation for variable sized bin-packing problems, European Journal of Operational Research, vol. 183, n.o3, pp. 1333–1352, 2007. [abstract, download]

 

Chapters in books

  1. Cláudio Alves, Pedro Brás, José Valério de Carvalho, Telmo Pinto, Optimização de processos na produção de estofos para automóveis: o caso da COINDU S.A., in "Investigação Operacional em Acção: casos de aplicação", R. Oliveira, J. Ferreira (Eds), submitted, 2011. [abstract]
  2. Gleb Belov, Guntram Scheithauer, Cláudio Alves, José Valério de Carvalho, Gomory cuts from a position-indexed formulation of 1D stock cutting, in "Intelligent Decision Support", A. Bortfeldt, J. Homberger, H. Kopfer, G. Pankratz, R. Strangmeier (Eds.), Gabler-Verlag (ISBN-10: 3-8349-0930-0), pp. 3–14, 2008. [abstract]

 

Papers in national journals

  1. Cláudio Alves, Pedro Brás, José Valério de Carvalho, Telmo Pinto, Optimização de processos no fabrico de estofos para automóveis: o caso da COINDU S.A., Boletim da APDIO, 2011. [bibtex]
  2. Cláudio Alves, Rita Macedo, José Valério de Carvalho, Um novo limite inferior baseado num modelo de programação por restrições para o problema de minimização de padrões, Investigação Operacional, vol. 28, pp. 163–174, 2008. [abstract, download]
  3. Cláudio Alves, José Valério de Carvalho, Planeamento de rotas num sistema de recolha de desperdícios de madeira, Investigação Operacional, vol. 24, no1, pp. 21–43, 2004. [abstract, download]
    Prize APDIO/IO2002 for the best paper in Operations Research from a Master of Science Dissertation in the period 2000/2002.

 

Papers in conference proceedings

  1. Rita Macedo, Said Hanafi, François Clautiaux, Cláudio Alves, José Valério de Carvalho, Generalized disaggregation algorithm for the vehicle routing problem with time windows and multiple routes, in Proceedings of the 1st International Conference on Operations Research and Enterprise Systems - ICORES 2012, Vilamoura, Portugal, February 2012. [abstract]
    Best Paper Award by the Institute for Systems and Technologies of Information, Control and Communication (INSTICC), 1st International Conference on Operations Research and Enterprise Systems - ICORES 2012.
  2. Jürgen Rietz, Cláudio Alves, José Valério de Carvalho, François Clautiaux, Computing valid inequalities for general integer programs using an extension of dual feasible functions to negative arguments, in Proceedings of the 1st International Conference on Operations Research and Enterprise Systems - ICORES 2012, Vilamoura, Portugal, February 2012. [abstract]
  3. Cláudio Alves, Raid Mansi, Telmo Pinto, José Valério de Carvalho, A column generation approach for the bi-objective max-min knapsack problem, in Proceedings of the 1st International Conference on Operations Research and Enterprise Systems - ICORES 2012, Vilamoura, Portugal, February 2012. [abstract]
  4. Rita Macedo, Cláudio Alves, José Valério de Carvalho, An exact approach for the location routing problem with multiple routes, in Proceedings of the International Conference on Engineering UBI2011 "Innovation and Development" - ICEUBI2011, Covilhã, Portugal, November 2011. [abstract]
  5. Raid Mansi, Cláudio Alves, José Valério de Carvalho, Luce Brotcorne, Said Hanafi, A heuristic approach to bilevel multidimensional knapsack problems based on a surrogate relaxation, in Proceedings of the International Conference on Engineering UBI2011 "Innovation and Development" - ICEUBI2011, Covilhã, Portugal, November 2011. [abstract]
  6. Pedro Brás, Cláudio Alves, José Valério de Carvalho, Telmo Pinto, Irregular shape packing on leather hides using GRASP: a real case study, in Proceedings of the International Conference on Engineering UBI2011 "Innovation and Development" - ICEUBI2011, Covilhã, Portugal, November 2011. [abstract]
  7. Jürgen Rietz, Cláudio Alves, José Valério de Carvalho, Computing maximal dual-feasible functions using a novel approach, in Proceedings of the 10o Congreso Galego de Estatística e Investigación de Operacións, ISBN: 978-84-938642-2-4, Pontevedra, Spain, November 2011. [abstract]
  8. Telmo Pinto, Cláudio Alves, José Valério de Carvalho, An overview on recent approaches for vehicle routing problems with loading constraints, in Proceedings of the 10o Congreso Galego de Estatística e Investigación de Operacións (ISBN: 978-84-938642-2-4), Pontevedra, Spain, November 2011. [abstract]
  9. Elsa Sousa, Miguel Marques, José Matos, Cláudio Alves, A location problem in the field of wind energy, in Proceedings of the 2nd International Conference on Business Sustainability - BS11, Póvoa de Varzim, Portugal, June 2011. [abstract]
  10. Raid Mansi, Cláudio Alves, José Valério de Carvalho, Said Hanafi, An exact solution approach for a multi-follower bilevel optimization problem, in Proceedings of the 2nd International Conference on Business Sustainability - BS11, Póvoa de Varzim, Portugal, June 2011. [abstract]
  11. Rita Macedo, Cláudio Alves, José Valério de Carvalho, Said Hanafi, Relaxation induced methods based on column generation for vehicle routing problems, in Proceedings of the 2nd International Conference on Business Sustainability - BS11, Póvoa de Varzim, Portugal, June 2011. [abstract]
  12. Telmo Pinto, Cláudio Alves, José Valério de Carvalho, Pedro Brás, Heuristic methods for process optimization in the automotive industry, in Proceedings of the 2nd International Conference on Business Sustainability - BS11, Póvoa de Varzim, Portugal, June 2011. [abstract]
  13. Elsa Sousa, Miguel Marques, José Matos, Cláudio Alves, GIS enabled decision support system for IEC 61400-12-1'S reference meteorological mast siting, in Proceedings Website of the European Wind Energy Association Annual Event 2011 - EWEA 2011, Brussels, Belgium, March 2011. [abstract]
  14. Pedro Brás, Cláudio Alves, José Valério de Carvalho, Telmo Pinto, Exploring new constructive algorithms for the leather nesting problem in the automotive industry, in Proceedings of the 5th Conference on Management and Control of Production and Logistics - MCPL 2010, Coimbra, Portugal, September 2010. [abstract]
  15. Cláudio Alves, Rita Macedo, José Valério de Carvalho, Solving the pattern minimization problem with branch-and-price and constraint programming, in Proceedings of the 3rd International Workshop on Bin Packing and Placement Constraints associated to the 7th International Conference on Integration of AI and OR Techniques in Constraint Programming - CPAIOR 2010, Bologna, Italy, June 2010. [abstract]
  16. Rita Macedo, Cláudio Alves, José Valério de Carvalho, Arc-flow model for the two-dimensional cutting stock problem, in Proceedings of the International Network Optimization Conference 2009 - INOC2009, Pisa, Italy, April 2009. [abstract]
  17. Cláudio Alves, Rita Macedo, José Valério de Carvalho, Optimizing transportation processes in urban waste collection systems, in Proceedings of the 1st International Conference on Business Sustainability - BS08, Ofir, Portugal, June 2008, pp. 299–305. [abstract]
  18. Cláudio Alves, José Valério de Carvalho, Solving the assortment and trim loss minimization problem using branch-and-price-and-cut, in Proceedings of the ORP3 2007 Conference - Operation Research Peripatetic Postgraduate Programme, Guimarães, Portugal, September 2007. [abstract]
  19. Gleb Belov, Guntram Scheithauer, Cláudio Alves, José Valério de Carvalho, Gomory cuts from alternative formulations, in Proceedings of the Conference "Mathematical Programming and Applications", Ekaterinburg, Russia, February/March 2007. [abstract]
  20. Cláudio Alves, José Valério de Carvalho, An improved branch-and-price-and-cut algorithm for the pattern minimization problem, in Actas do 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), Guimarães, Portugal, October 2005. [abstract]
  21. Vítor Barbosa, Cláudio Alves, Filipe Alvelos, Ferramentas computacionais de suporte ao método de partição e geração de colunas, in Actas do 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), Guimarães, Portugal, October 2005. [abstract]