MIPLIB
An electronic library of pure- and mixed-integer programs
In response to the needs of researchers for access to real-world mixed integer programs a group of researchers at Rice University created MIPLIB, an electronically available library of both pure and mixed integer programs.
Since its introduction, MIPLIB has become a standard test set used to compare the performance of mixed integer optimizers. Its availability has provided an important stimulus for researchers in this very active area.