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

Pelin Damci-Kurt | 111827 | 168336 | 2.55124e-05 | easy | physiciansched | 49324 | physiciansched6-2.mps.gz |

Physician scheduling problem for hospitalist, radiology and kidney specialist groups.

Detailed explanation of the following tables can be found here.

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

Variables | 111827 | 19245 |

Constraints | 168336 | 37882 |

Binaries | 109346 | 18151 |

Integers | 0 | 0 |

Continuous | 2481 | 1094 |

Implicit Integers | 0 | 0 |

Fixed Variables | 1373 | 0 |

Nonzero Density | 2.55124e-05 | 1.42953e-04 |

Nonzeroes | 480259 | 104218 |

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

Total | 168336 | 37882 |

Empty | 10599 | 0 |

Free | 0 | 0 |

Singleton | 10534 | 0 |

Aggregations | 0 | 0 |

Precedence | 35599 | 21370 |

Variable Bound | 72838 | 8117 |

Set Partitioning | 0 | 0 |

Set Packing | 763 | 477 |

Set Covering | 78 | 1123 |

Cardinality | 0 | 0 |

Invariant Knapsack | 12725 | 1507 |

Equation Knapsack | 0 | 0 |

Bin Packing | 15650 | 4528 |

Knapsack | 4636 | 22 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 4914 | 738 |

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 | 2.562293 | ||||

Constraint % | 0.00264 | 0.246681 | 0.0739137 | 6.47801 | |

Variable % | 0.00646 | 0.162259 | 0.0484778 | 4.21110 | |

Score | 0.890244 |

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 | 49324 | 49324 | 0 | 0 | 0 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to physiciansched6-2 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 Apr 09, 2019 by Gregor Hendel

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