OR-Library is a collection of test data sets for a variety of Operations Research (OR) problems.
These test data sets can be accessed via the WWW using the links below.
OR-Library was originally described in J.E.Beasley, "OR-Library: distributing test problems by electronic mail", Journal of the Operational Research Society 41(11) (1990) pp1069-1072.
Those concerned as to any legal issues associated with using the test data sets in OR-Library should see here
Assembly line balancing
Capacitated minimal spanning tree
Data envelopment analysis
Edge-weighted k-cardinality tree
Equitable partitioning problem
Fixed charge transportation problem
Frequency assignment problem
Generalised assignment problem
Integer (and mixed-integer) programming
Minimum labelling spanning tree
binary quadratic programming
J.E.Beasley, June 1990 Last update: June 2012