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

Marco Luebbecke | 13594 | 45554 | 1.96316e-04 | open | – | 124958* | shipsched.mps.gz |

A ship scheduling problem on the Kiel Canal

Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

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

Variables | 13594 | 7121 |

Constraints | 45554 | 22105 |

Binaries | 10549 | 4076 |

Integers | 0 | 0 |

Continuous | 3045 | 3045 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.000196316 | 0.000381037 |

Nonzeroes | 121571 | 59979 |

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

Total | 45554 | 22105 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 6312 | 0 |

Aggregations | 1044 | 1044 |

Precedence | 2206 | 6075 |

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 | 35992 | 14986 |

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 | 2.586587 | ||||

Constraint % | 0.0045200 | 0.175068 | 0.0045200 | 7.44176 | |

Variable % | 0.0293026 | 0.176247 | 0.0293026 | 6.24145 | |

Score | 0.639448 |

No solution available for shipsched .

The following instances are most similar to shipsched 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.

`No bibliographic information available`

Last Update Mär 19, 2019 by Gregor Hendel

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