Submitter | Variables | Constraints | Density | Status | Group | Objective | MPS File |
---|---|---|---|---|---|---|---|

A. Atamtürk | 7644 | 2364 | 1.66416e-03 | easy | nxy-z | 14409 | n9-3.mps.gz |

Capacitated network design problem

Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

Original | Presolved | |
---|---|---|

Variables | 7644 | 7644 |

Constraints | 2364 | 2364 |

Binaries | 0 | 0 |

Integers | 252 | 252 |

Continuous | 7392 | 7392 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.00166416 | 0.00166416 |

Nonzeroes | 30072 | 30072 |

Original | Presolved | |
---|---|---|

Total | 2364 | 2364 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 176 | 176 |

Precedence | 0 | 0 |

Variable Bound | 0 | 0 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 0 |

Set Covering | 0 | 0 |

Cardinality | 0 | 0 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 2020 | 2020 |

General Linear | 168 | 168 |

Indicator | 0 | 0 |

Available nonzero structure and decomposition information. Further information can be found here.

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

value | min | median | mean | max | |
---|---|---|---|---|---|

Components | 1.94939 | ||||

Constraint % | 1.01523 | 1.05561 | 1.01523 | 4.56853 | |

Variable % | 1.09890 | 1.13636 | 1.09890 | 4.39560 | |

Score | 0.91722 |

Find solutions below. Download the archive containing all solutions from the Download page.

ID | Objective | Exact | Int. Viol | Cons. Viol | Obj. Viol | Submitter | Date | Description | |
---|---|---|---|---|---|---|---|---|---|

2 | 1 | 14409 | 14409 | 0 | 0 | 0 | - | 2018-10-13 | Solution found during MIPLIB2017 problem selection. |

1 | 2 | 14409 | 14409 | 0 | 0 | 0 | - | 2018-10-13 | Solution imported from MIPLIB2010. |

The following instances are most similar to n9-3 in the collection. This similarity analysis is based on 100 scaled instance features describing properties of the variables, objective function, bounds, constraints, and right hand sides.

Instance | Variables | Binaries | Integers | Continuous | Constraints | Nonz. | Submitter | Group | Status | Objective |
---|---|---|---|---|---|---|---|---|---|---|

n6-3 | 7178 | 0 | 222 | 6956 | 2760 | 28268 | A. Atamtürk | nxy-z | easy | 15175 |

n5-3 | 2550 | 0 | 150 | 2400 | 1062 | 9900 | A. Atamtürk | nxy-z | easy | 8105 |

n7-3 | 5626 | 0 | 174 | 5452 | 2336 | 22156 | A. Atamtürk | nxy-z | easy | 15426 |

n13-3 | 3472 | 0 | 186 | 3286 | 1723 | 13516 | A. Atamtürk | nxy-z | easy | 13385 |

ger50-17-ptp-pop-3t | 4892 | 0 | 540 | 4352 | 545 | 14285 | C. Raack | ger50 | open | 5235.5174* |

```
@article{Atamturk2002,
author = {A. Atamt{\"u}rk},
journal = {Mathematical Programming},
pages = {425--437},
title = {On Capacitated Network Design Cut-Set Polyhedra},
volume = {92},
year = {2002}
}
@misc{bcol,
key = {zzz bcol},
note = {http://ieor.berkeley.edu/~atamturk/data/},
title = {{B}erkeley {C}omputational {O}ptimization {L}ab -- {D}ata
{S}ets},
year = {2010}
}
```

Last Update Jan 18, 2019 by Gregor Hendel

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