TY - GEN A1 - Achterberg, Tobias A1 - Koch, Thorsten A1 - Martin, Alexander T1 - MIPLIB 2003 N2 - This paper is about the fourth version of the Mixed Integer Programming Library (MIPLIB). More than 7 years have been past since the last update. Since the focus of the MIPLIB is to provide a concise set of challenging problems, it became again necessary to purge the library from instances that have become too easy due to improvements in optimizers and computing machinery. The free slots have been filled by 27 new challenging instances. We give an overview of the new problems and present statistical data for all 60 instances included in the MIPLIB 2003. KW - Mathematical Programming KW - Mixed Integer Programming KW - IP KW - MIP KW - Optimization KW - Instances Y1 - 2005 UR - https://opus4.kobv.de/opus4-matheon/frontdoor/index/index/docId/307 UR - https://nbn-resolving.org/urn:nbn:de:0296-matheon-3075 ER -