The Pseudo-Boolean Optimization Website

 

2500-1
OR-LIB

 

variables: 2500
density: 10%
diagonal coefficients: integer uniform [-100,100]
off-diagonal coefficients: integer uniform [-100,100]
starting seed:

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Maximum
Value Type Source Method Time Technology
1,515,944 lower bound

G. Palubeckis, (11-24-2003), http://www.soften.ktu.lt/~gintaras/.

tabu search --- Pentium II 266 PC.
1,515,306 lower bound

P. Merz and B. Freisleben, (1999), ''Genetic algorithms for binary quadratic programming'', in Proceedings of the 1999 international Genetic and Evolutionary Computation Conference (GECCO'99), Morgan Kauffmann, 417-424.

genetic algorithms 1200 sec Implemented in C++ and tested on a Pentium II PC (300 MHz) under Solaris 2.6.
1,515,011 lower bound

J. E. Beasley, (1998), ''Heuristic algorithms for the unconstrained binary quadratic programming problem'', Technical Report, Management School, Imperial College, London, UK.

simulated annealing 63080 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
1,514,971 lower bound

J. E. Beasley, (1998), ''Heuristic algorithms for the unconstrained binary quadratic programming problem'', Technical Report, Management School, Imperial College, London, UK.

tabu search 52011 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
 

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Last updated: February 12, 2005.