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

J. Walser | 1620 | 2520 | 3.75441e-03 | easy | acc-tight | 0 | acc-tight2.mps.gz |

ACC basketball scheduling instance

Imported from the MIPLIB2010 submissions.

Detailed explanation of the following tables can be found here.

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

Variables | 1620 | 1620 |

Constraints | 2520 | 2520 |

Binaries | 1620 | 1620 |

Integers | 0 | 0 |

Continuous | 0 | 0 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.00375441 | 0.00375441 |

Nonzeroes | 15327 | 15327 |

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

Total | 2520 | 2520 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 1296 | 1296 |

Variable Bound | 0 | 0 |

Set Partitioning | 252 | 252 |

Set Packing | 162 | 162 |

Set Covering | 0 | 189 |

Cardinality | 27 | 27 |

Invariant Knapsack | 783 | 594 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 0 | 0 |

General Linear | 0 | 0 |

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 | 1.000000 | ||||

Constraint % | 8.76984 | 8.76984 | 8.76984 | 8.76984 | |

Variable % | 11.11110 | 11.11110 | 11.11110 | 11.11110 | |

Score | 0.701587 |

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 | 0 | 0 | 0 | 0 | 0 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to acc-tight2 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.

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Last Update Jun 24, 2020 by Gabriel Kressin

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