OpenScience / Software / Mathematics / Optimization

Universal cross-platform (Win, Linux, Mac OS) Python-written numerical optimization toolbox. License: new BSD. Problems: NLP, LP, QP, SDP, SOCP, DFP(Non-linear Data Fit), NSP(nonsmooth), MILP, LSP, LLSP, MMP, GLP, MINLP etc. Connects to dozens of solvers (some are C- or Fortran-written). … Continue reading →

There are three major parts. 1st and main part is solver-driver which either wraps external solver or uses LOPTI native solvers and presents to library user consistent and simple optimization API. 2nd part is collection of solvers. Currently 4 solvers … Continue reading →

EASY! is an easy to use fortran code for constrained and unconstrained non-linear optimization. Very large problems can be handled. Find EASY! at: http://www.ime.unicamp.br/~martinez/software.html

What is lp_solve and what is it not? The simple answer is, lp_solve is a Mixed Integer Linear Programming (MILP) solver. It is a free (see LGPL for the GNU lesser general public license) linear (integer) programming solver based on … Continue reading →

A C++ library on graph optimization. The GUI includes a graph editor and can be used to run and to visualize the library algorithms. Find GOBLIN Graph Library at: http://www.math.uni-augsburg.de/opt/goblin.html

The Computational Infrastructure for Operations Research (COIN-OR) project is an initiative to spur the development of open-source software for the operations research community. Projects include linear and nonlinear optimization solvers and a tabu search framework. Find COIN-OR at: http://www.coin-or.org/

GLPK (GNU Linear Programming Kit) is intended for solving large-scale linear programming (LP), mixed integer programming (MIP), and other related problems. It is a set of routines written in ANSI C and organized in the form of a callable library. … Continue reading →

QUick ALmost EXact Maximum Weight Clique/Independent Set Solver based on the Motzkin-Straus QP formulation Find QUALEX-MS at: http://www.stasbusygin.org/

A reusable iterative optimization library for combinatorial problems with fuzzy constraints Find StarFLIP++ at: http://www.dbai.tuwien.ac.at/proj/StarFLIP/