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

NEOS Server Submission | 8399 | 1997 | 1.19158e-02 | open | neos-pseudoapplication-52 | 988.1405440676191* | ns1456591.mps.gz |

Instance coming from the NEOS Server with unknown application Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

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

Variables | 8399 | 7999 |

Constraints | 1997 | 1578 |

Binaries | 8000 | 7600 |

Integers | 19 | 19 |

Continuous | 380 | 380 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.0119158 | 0.0156818 |

Nonzeroes | 199862 | 197942 |

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

Total | 1997 | 1578 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 400 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 0 |

Variable Bound | 0 | 0 |

Set Partitioning | 38 | 38 |

Set Packing | 0 | 0 |

Set Covering | 0 | 0 |

Cardinality | 400 | 400 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 19 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 760 | 760 |

General Linear | 380 | 380 |

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 | 1.322219 | ||||

Constraint % | 3.67554 | 3.67554 | 3.67554 | 3.67554 | |

Variable % | 4.98812 | 4.98812 | 4.98812 | 4.98812 | |

Score | 0.698440 |

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 |
---|---|---|---|---|---|---|---|---|

3 | 988.1405 | 988.1413 | 8e-07 | 8e-07 | 0 | Michael Winkler | 2022-11-27 | Found with Gurobi 9.5.1 with default parameters (except for MIPGAP=0) on an AMD EPYC 7313P (16 Cores) with 256GB RAM. |

2 | 988.1413 | 0e+00 | 0e+00 | 0 | Robert Ashford and Alkis Vazacopoulus | 2019-12-18 | Found using ODH|CPlex | |

1 | 1118.0385 | 1118.0385 | 0e+00 | 0e+00 | 0 | - | 2018-10-12 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to ns1456591 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

swath | hard | 6805 | 6724 | 0 | 81 | 884 | 34965 | D. Panton | swath | 467.407491 | set_partitioning cardinality mixed_binary |

swath3 | easy | 6805 | 2706 | 0 | 4099 | 884 | 34965 | D. Panton | swath | 397.76134365 | benchmark benchmark_suitable mixed_binary |

swath2 | easy | 6805 | 2406 | 0 | 4399 | 884 | 34965 | D. Panton | swath | 385.1996929499999 | benchmark_suitable mixed_binary |

swath1 | easy | 6805 | 2306 | 0 | 4499 | 884 | 34965 | D. Panton | swath | 379.07129575 | benchmark benchmark_suitable mixed_binary |

neos-1456979 | easy | 4605 | 4245 | 180 | 180 | 6770 | 36440 | NEOS Server Submission | neos-pseudoapplication-102 | 176 | benchmark decomposition benchmark_suitable variable_bound set_partitioning set_packing cardinality knapsack mixed_binary general_linear |

```
@misc{neos,
key = {zzz neos},
note = {http://www.neos-server.org},
title = {{NEOS} {S}erver for {O}ptimization},
year = {2011}
}
```

Last Update Mar 04, 2024 by Julian Manns

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