Problem norway--U-U-E-N-C-A-N-N



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Nodes 27
51
Demands 702
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Originator -
Contributor Oktay Guenluek, IBM Watson Research, New York
Submission date 17.10.2005
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Solutions provided to SNDlib:

objective contributor submission date additional information
476100.00 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0, time limit 1h
465440.00 Sebastian Orlowski 20.12.2005 taken from norway--U-U-E-N-I-A-N-N
461380.00 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0 plus flow-cutset inequalities, time limit 1h

statistics about all solutions


Dual bounds provided to SNDlib:

dual bound contributor submission date additional information
400889.25 Sebastian Orlowski 17.08.2006 path-flow LP with column generation, B&C with metric inequalities, time limit 1h
394942.06 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0 plus flow-cutset inequalities, time limit 1h
357294.01 Christian Raack 06.11.2006 edge-flow formulation, CPLEX 10.0, time limit 1h

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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