The Pseudo-Boolean Optimization Website

 

100-2
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
11,036 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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11,036 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 35 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
11,036 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 34 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
 

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Last updated: February 12, 2005.