Problem dfn-bwin--U-U-E-N-S-A-N-N

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Demands 90
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Originator DFN-Verein,
Contributor Andreas Bley, Zuse-Institute Berlin
Submission date 17.10.2005
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Solutions provided to SNDlib:

objective contributor submission date additional information
108584.99 Sebastian Orlowski 20.12.2005 path-flow LP with column generation, B&C with metric inequalities, time limit 1h
86897.79 Mats Petter Pettersson 24.05.2006 Constraint programming branch and bound, using previous best known solution from website (108584.993) as initial bound. Time limit 10 seconds

statistics about all solutions

Dual bounds provided to SNDlib:

dual bound contributor submission date additional information
71169.25 Christian Raack 06.11.2006 taken from dfn-bwin--U-U-E-N-C-A-N-N
64536.31 Sebastian Orlowski 19.12.2005 taken from dfn-bwin--U-U-E-N-C-A-N-N

Note: we encourage you to submit dual bounds to a problem if you have them. However, in contrast to primal solutions, we cannot check dual bounds for validity, which is why dual bounds are only listed here together with their contributor.

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© 2006 Zuse-Institute Berlin (ZIB)