{"content":[{"text":"Foreword","bbox":{"left":0.440148,"top":0.144814,"width":0.12519000000000002,"height":0.026089}},{"text":"Many organisations have scheduling, assignment, supply chain and other prob- \n lems that could be solved with a constraint programming toolkit. Although the \n solution of these problems is of vital importance, constraint programming toolk- \n its are not widely used because there is insuﬃcient expertise available to model \n problems as constraint programs. \n This so-called modelling bottleneck could be reduced by the development of a \n general, principled understanding of modelling that in the future could guide the \n manual or automatic formulation of models and the choice among alternative \n models. \n Researchers and practitioners have developed eﬀective models for a wide range \n of problems. The time has come to form generalisations from these case studies \n that can be used to guide modelling in the future. These generalisations could \n then be systematised for use by a non-expert and be codiﬁed in textbooks in \n much the same way that data structuring expertise is. Ultimately this modelling \n expertise could be embedded in automated modelling tools. Progress on any of \n these fronts would bring the proven power of constraint programming to a wider \n user base. \n This “Fifth International Workshop on Constraint Modelling and Reformula- \n tion” was convened to provide a forum for researchers who share these goals. \n This volume contains eight contributed papers. \n We wish to thank all the authors who submitted papers to the workshop, the \n members of the programme committee and reviewers, and the CP 2006 Work- \n shop Chair, Barry O’Sullivan.","bbox":{"left":0.220204,"top":0.192723,"width":0.5650850000000001,"height":0.37761199999999995}},{"text":"September 2006 \n Ian Miguel and Steve Prestwich \n Programme Chairs","bbox":{"left":0.220204,"top":0.649225,"width":0.22646899999999998,"height":0.0455239999999999}}],"images_bbox":[],"images_bbox_not_text_overlap":[]}