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

Kiyan Ahmadizadeh | 164547 | 328818 | 1.01637e-05 | easy | map | -922 | map14860-20.mps.gz |

Land parcel selection problems motivated by Red-Cockaded Woodpecker conservation problem

Imported from the MIPLIB2010 submissions.

Detailed explanation of the following tables can be found here.

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

Variables | 164547 | 26843 |

Constraints | 328818 | 50120 |

Binaries | 146 | 118 |

Integers | 0 | 0 |

Continuous | 164401 | 26725 |

Implicit Integers | 0 | 0 |

Fixed Variables | 1 | 0 |

Nonzero Density | 1.01637e-05 | 7.93223e-05 |

Nonzeroes | 549920 | 106718 |

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

Total | 328818 | 50120 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 118493 | 0 |

Aggregations | 0 | 0 |

Precedence | 36827 | 21106 |

Variable Bound | 164400 | 23593 |

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 | 1 | 1 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 9097 | 5420 |

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 | 3.257439 | ||||

Constraint % | 0.0020000 | 0.0059800 | 0.0020000 | 0.494812 | |

Variable % | 0.0107956 | 0.0269732 | 0.0107956 | 1.943210 | |

Score | 0.107784 |

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 | -922 | -922 | 0 | 0 | 0 | - | 2018-10-10 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to map14860-20 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

map18 | easy | 164547 | 146 | 0 | 164401 | 328818 | 549920 | Kiyan Ahmadizadeh | map | -847 | benchmark_suitable precedence variable_bound knapsack mixed_binary |

map10 | easy | 164547 | 146 | 0 | 164401 | 328818 | 549920 | Kiyan Ahmadizadeh | map | -495 | benchmark benchmark_suitable precedence variable_bound knapsack mixed_binary |

map06 | easy | 164547 | 146 | 0 | 164401 | 328818 | 549920 | Kiyan Ahmadizadeh | map | -289 | benchmark_suitable precedence variable_bound knapsack mixed_binary |

map16715-04 | easy | 164547 | 146 | 0 | 164401 | 328818 | 549920 | Kiyan Ahmadizadeh | map | -111 | benchmark benchmark_suitable precedence variable_bound knapsack mixed_binary |

neos-3209462-rhin | open | 56453 | 383 | 0 | 56070 | 170226 | 447473 | Jeff Linderoth | neos-pseudoapplication-98 | 12* | aggregations precedence variable_bound set_partitioning set_covering cardinality invariant_knapsack mixed_binary |

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Last Update Jul 31, 2019 by Gregor Hendel

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