Hi all,

In OpenOpt (free software written in Python language, BSD-licensed) we have implemented new class - STAB - searching for maximum stable set of a graph.

networkx graphs are used as input arguments (networkx is another free Python language software for graphs handling). Unlike networkx function maximum_independent_set() we mostly focus on searching for exact solution (this is NP-Hard problem).

Thus you can also solve maximum clique problem on complementary graph simply via networkx.complement(G)

interalg or OpenOpt-connected MILP solvers (glpk, lpSolve, cplex) are used, some GUI features and stop criterion (e.g. maxTime, maxCPUTime, fEnough) can be used. Also optional arguments are includedNodes and excludedNodes - nodes that have to be present/absent in solution.

Future plans (probably very long-term although) include TSP and some other graph problems with similar API and possibilities.

Regards, Dmitrey.

asked 14 Jul '12, 08:26

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edited 15 Sep '12, 10:58

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Asked: 14 Jul '12, 08:26

Seen: 2,186 times

Last updated: 15 Sep '12, 10:58

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