The Pseudo-Boolean Optimization Website

 

100-7
OR-LIB

 

variables: 100
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
10,125 optimal

E. Boros, P. L. Hammer and G. Tavares, (2005), "Exact methods for unconstrained quadratic binary optimization", work currently underway, RUTCOR, Rutgers University.

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10,125 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 36 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
10,125 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 32 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
 

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Last updated: February 12, 2005.