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

Jeff Linderoth | 20046 | 169 | 2.56581e-01 | hard | neos-pseudoapplication-100 | 28700 | neos-3352863-ancoa.mps.gz |

Detailed explanation of the following tables can be found here.

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

Variables | 20046 | 20046 |

Constraints | 169 | 169 |

Binaries | 20045 | 20045 |

Integers | 0 | 0 |

Continuous | 1 | 1 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.256581 | 0.256581 |

Nonzeroes | 869239 | 869239 |

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

Total | 169 | 169 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 0 |

Variable Bound | 0 | 0 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 0 |

Set Covering | 70 | 70 |

Cardinality | 0 | 0 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 99 | 99 |

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 | 0.301030 | ||||

Constraint % | 41.4201 | 41.4201 | 41.4201 | 41.4201 | |

Variable % | 97.7302 | 97.7302 | 97.7302 | 97.7302 | |

Score | 0.009401 |

Find solutions below. Download the archive containing all solutions from the Download page.

`## Warning in lapply(df["exactobjval"], as.numeric): NAs introduced by coercion`

ID | Objective | Exact | Int. Viol | Cons. Viol | Obj. Viol | Submitter | Date | Description |
---|---|---|---|---|---|---|---|---|

2 | 28700 | 0 | 0 | 0 | Hans Mittelmann | 2020-02-04 | Solved with Gurobi 9.0 using 48 Threads within 169 hours | |

1 | 29000 | 29000 | 0 | 0 | 0 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to neos-3352863-ancoa 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

scpn2 | open | 1000000 | 1000000 | 0 | 0 | 5000 | 12500000 | Shunji Umetani | scp | 489.0* | binary set_covering |

scpj4scip | open | 99947 | 99947 | 0 | 0 | 1000 | 999893 | Shunji Umetani | scp | 128* | binary set_covering |

scpl4 | open | 200000 | 200000 | 0 | 0 | 2000 | 2000000 | Shunji Umetani | scp | 259.0* | binary set_covering |

scpm1 | open | 500000 | 500000 | 0 | 0 | 5000 | 6250000 | Shunji Umetani | scp | 542.0* | binary set_covering |

scpk4 | open | 100000 | 100000 | 0 | 0 | 2000 | 1000000 | Shunji Umetani | scp | 318.0* | binary set_covering |

`No bibliographic information available`

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