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Course about advanced modeling for discrete optimization, covering topics such as debugging or predicates

Course about basic modeling for discrete optimization with MiniZinc

CSPLib is a library of test problems for constraint solvers.

Instances for the CVRP challenge.

Course about discrete optimization covering a wide range of optimization techniques such as Constraint Programming, Local Search or Column Generation

EURO is the 'Association of European Operational Research Societies'. The objectives of EURO aim to promote Operational Research within Europe.

The International Federation of Operational Research Societies (IFORS) is an umbrella organization for national operations research societies of over 45 countries

INFORMS is the leading international association for Operations Research & Analytics professionals.

This site provides access to a number of Operations Research problem data sets.

Instances for several interesting NP-hard problems.

7-day free email course to kickstart in Operations Research.

Instances for Quadratic Assignment Problems.

Course about all things mathematical optimization: unconstrained, LP, NLP, MIP, Global optimization, Dynamic optimization, ML for optimization, and optimization under uncertainty.

The Spanish Statistical and Operational Research Society is a Spanish organization that promotes the development and practice of statistics and operational research.

SNDlib is a library of data for Survivable fixed telecommunication Network Design. Its purpose is to provide data about realistic telecommunication networks (including traffic) available to the research community.

Course about solving discrete optimization problems with different techniques: Constraint Programming, Mixed Integer Programming and Local Search

The Operational Research Society (ORS), also known as The OR Society, is an international learned society in the field of operational research (OR), with more than 3,100 members

OR-Library is a collection of test data sets for a variety of Operations Research (OR) problems.

TSPLIB is a library of sample instances for the TSP (and related problems) from various sources and of various types.

This web is dedicated to the study of VRP; we have compiled here a great deal of information about it for public access: technical reports, many different variants of the problem, alternative algorithms and techniques for solving it, some well-known instances of the problem, the best-so-far solutions for those instances, bibliography, related links…