The Pseudo-Boolean Optimization Website

 

500-5
OR-LIB

 

variables: 500
density: 10%
diagonal coefficients: integer uniform [-100,100]
off-diagonal coefficients: integer uniform [-100,100]
starting seed:

---

 
Maximum
Value Type Source Method Time Technology
125,487 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 120 sec Implemented in C++ and tested on a Pentium II PC (300 MHz) under Solaris 2.6.
125,487 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 964 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
125,315 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 1030 sec Silicon Graphics Indigo (R4000, 100 MHz, 48 MB RAM).
 

Copyright © 2003 RUTCOR.
For problems or questions regarding the PBO website contact pbo@rutcor.rutgers.edu.
Last updated: February 12, 2005.