%0 Conference Proceedings %T Improvement Tools for NEH Based Heuristics on Permutation and Blocking Flow Shop Scheduling Problems %+ Dpto. de Organización de Empresas, Escuela Técnica Superior de Ingeniería Industrial de Barcelona %A Companys, Ramon %A Ribas, Imma %A Mateo, Manel %< avec comité de lecture %( IFIP Advances in Information and Communication Technology %B International Conference on Advances in Production and Management Systems (APMS) %C Paris, France %Y Bruno Vallespir; Thècle Alix %I Springer %3 Advances in Production Management Systems. New Challenges, New Approaches %V AICT-338 %P 33-40 %8 2009-09-21 %D 2009 %R 10.1007/978-3-642-16358-6_5 %K Scheduling %K heuristic algorithms %K permutation flow shop %K blocking flow shop %Z Computer Science [cs]/Digital Libraries [cs.DL]Conference papers %X In this paper, two tools to improve the performance of the NEH-based heuristics for the flow shop problem with and without buffer constraints are proposed. The first tool is the use of the reversibility property of the problems considered and the second one is a new tie-breaking strategy to be use in the insertion phase of the NEH heuristic. In addition, we have analyzed the behavior of five initial solution procedures for both problems. The analysis of results confirms the effectiveness of the measures proposed and allows us to recommend the best ordering procedure for each one of the problems. %G English %2 https://inria.hal.science/hal-01055820/document %2 https://inria.hal.science/hal-01055820/file/03380031.pdf %L hal-01055820 %U https://inria.hal.science/hal-01055820 %~ IFIP %~ IFIP-AICT %~ IFIP-AICT-338 %~ IFIP-TC %~ IFIP-TC5 %~ IFIP-WG %~ IFIP-APMS %~ IFIP-WG5-7 %~ IFIP-2010