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

NEOS Server Submission | 128521 | 128880 | 4.6253e-05 | open | neos-pseudoapplication-60 | 632.0* | ns1849932.mps.gz |

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

Detailed explanation of the following tables can be found here.

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

Variables | 128521 | 128163 |

Constraints | 128880 | 127808 |

Binaries | 128164 | 127806 |

Integers | 0 | 0 |

Continuous | 357 | 357 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 4.62530e-05 | 4.66839e-05 |

Nonzeroes | 766124 | 764694 |

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

Total | 128880 | 127808 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 1072 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 0 |

Variable Bound | 0 | 0 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 0 |

Set Covering | 358 | 358 |

Cardinality | 358 | 358 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 127092 | 127092 |

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 | 0.30103 | ||||

Constraint % | 99.4398 | 99.4398 | 99.4398 | 99.4398 | |

Variable % | 99.4429 | 99.4429 | 99.4429 | 99.4429 | |

Score | 0.00554 |

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

8 | 632 | 0 | 0 | 0 | Mars Davletshin | 2023-12-23 | The solution was obtained using machine learning-based large neighborhood search with Huawei OptVerse solver (version 0.7.0). | |

7 | 638 | 638 | 0 | 0 | 0 | Michael Winkler | 2023-01-05 | Found with Gurobi 9.5.1 with the NoRel heuristic (and MIPGAP=0) on an AMD EPYC 7313P (16 Cores) with 256GB RAM. |

6 | 639 | 639 | 0 | 0 | 0 | Edward Rothberg | 2022-07-12 | Obtained with Gurobi 9.5 using the NoRel heuristic. |

5 | 668 | 668 | 0 | 0 | 0 | Edward Rothberg | 2020-09-14 | Found with Gurobi |

4 | 676 | 676 | 0 | 0 | 0 | Edward Rothberg | 2020-04-22 | Obtained with Gurobi 9.0 using the solution improvement heuristic |

3 | 790 | 0 | 0 | 0 | Edward Rothberg | 2019-12-13 | Obtained with Gurobi 9.0 | |

2 | 1531 | 0 | 0 | 0 | Robert Ashford and Alkis Vazacopoulus | 2019-12-18 | Found using ODH|CPlex | |

1 | 1828 | 1828 | 0 | 0 | 0 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to ns1849932 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

neos-2294525-abba | easy | 10842 | 10086 | 0 | 756 | 11122 | 80010 | Jeff Linderoth | neos-pseudoapplication-46 | 321.1522319 | decomposition precedence set_partitioning cardinality mixed_binary |

neos-5266653-tugela | open | 23310 | 22662 | 0 | 648 | 23458 | 171534 | Hans Mittelmann | neos-pseudoapplication-102 | 65505.2005752763* | decomposition precedence set_partitioning cardinality binpacking knapsack mixed_binary |

neos-5260764-orauea | hard | 12940 | 12580 | 0 | 360 | 12304 | 82620 | Hans Mittelmann | neos-pseudoapplication-102 | 82593.16768840607 | decomposition variable_bound set_partitioning cardinality binpacking knapsack mixed_binary |

ns1905797 | open | 18192 | 17676 | 4 | 512 | 51884 | 239700 | NEOS Server Submission | neos-pseudoapplication-102 | no_solution aggregations precedence variable_bound set_partitioning cardinality mixed_binary general_linear | |

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 |

`No bibliographic information available`

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