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

J. Gregory, L. Schrage | 128 | 182 | 3.15505e-02 | easy | โ | -41.00000885 | noswot.mps.gz |

Unknown application

Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

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

Variables | 128 | 127 |

Constraints | 182 | 182 |

Binaries | 75 | 80 |

Integers | 25 | 20 |

Continuous | 28 | 27 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.0315505 | 0.0316691 |

Nonzeroes | 735 | 732 |

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

Total | 182 | 182 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 8 |

Variable Bound | 45 | 40 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 1 |

Set Covering | 0 | 0 |

Cardinality | 0 | 0 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 6 | 5 |

Mixed Binary | 0 | 27 |

General Linear | 131 | 101 |

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 | 1.414973 | ||||

Constraint % | 1.64835 | 1.64835 | 1.64835 | 1.64835 | |

Variable % | 2.36220 | 2.42520 | 2.36220 | 3.14961 | |

Score | 0.402094 |

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 |
---|---|---|---|---|---|---|---|---|

1 | -41.00001 | -41 | 8.9e-06 | 0 | 0 | - | 2018-10-10 | Solution found during MIPLIB2017 problem selection. |

2 | -41.00000 | -41 | 0.0e+00 | 0 | 0 | - | 2018-10-10 | Solution imported from MIPLIB2010. |

The following instances are most similar to noswot 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 | Status | Variables | Binaries | Integers | Continuous | Constraints | Nonz. | Submitter | Group | Objective | Tags |
---|---|---|---|---|---|---|---|---|---|---|---|

milo-v12-6-r2-40-1 | easy | 2688 | 840 | 0 | 1848 | 5628 | 14604 | Tamas Terlaky | milo | 326481.14282799 | benchmark decomposition benchmark_suitable aggregations precedence variable_bound mixed_binary general_linear |

milo-v13-4-3d-3-0 | open | 516 | 120 | 0 | 396 | 996 | 2456 | Tamas Terlaky | milo | 273238.08563337* | aggregations variable_bound mixed_binary general_linear |

milo-v13-4-3d-4-0 | open | 688 | 160 | 0 | 528 | 1328 | 3292 | Tamas Terlaky | milo | 358152.262193709* | aggregations variable_bound mixed_binary general_linear |

milo-v12-6-r1-58-1 | hard | 4440 | 1500 | 0 | 2940 | 9540 | 25068 | Tamas Terlaky | milo | 634081.411203952 | decomposition aggregations precedence variable_bound mixed_binary general_linear |

milo-v12-6-r1-75-1 | open | 5698 | 1925 | 0 | 3773 | 12243 | 32174 | Tamas Terlaky | milo | 1153880.23371389* | decomposition aggregations precedence variable_bound mixed_binary general_linear |

```
@article{BixbyBoydIndovina1992,
author = {R. E. Bixby and E. A. Boyd and R. R. Indovina},
issue = {2},
journal = {SIAM News},
language = {English},
pages = {16},
title = {{MIPLIB}: {A} Test Set of Mixed Integer Programming Problems},
volume = {25},
year = {1992}
}
```

Last Update Mรคr 25, 2020 by Gabriel Kressin

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