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

J. Linderoth | 4516 | 32 | 3.06155e-01 | easy | eil | 934.007915999999 | eil33-2.mps.gz |

Set partitioning problem approximation for capicated vehicle routing problem instance from TSPLIB

Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

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

Variables | 4516 | 4516 |

Constraints | 32 | 32 |

Binaries | 4516 | 4516 |

Integers | 0 | 0 |

Continuous | 0 | 0 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.306155 | 0.306155 |

Nonzeroes | 44243 | 44243 |

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

Total | 32 | 32 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 0 |

Variable Bound | 0 | 0 |

Set Partitioning | 32 | 32 |

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 | 0 | 0 |

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 % | 100 | 100 | 100 | 100 | |

Variable % | 100 | 100 | 100 | 100 | |

Score | 0.00000 |

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 | 934.0079 | 811.279 | 0 | 0 | 0 | - | 2018-10-13 | Solution found during MIPLIB2017 problem selection. |

2 | 934.0079 | 811.279 | 0 | 0 | 0 | - | 2018-10-13 | Solution imported from MIPLIB2010. |

The following instances are most similar to eil33-2 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

eilC76-2 | easy | 28599 | 28599 | 0 | 0 | 75 | 314837 | J. Linderoth | eil | 762.514781999996 | binary benchmark_suitable set_partitioning |

t1722 | open | 36630 | 36630 | 0 | 0 | 338 | 133096 | R. Borndörfer | – | 109137* | binary set_partitioning |

t1717 | open | 73885 | 73885 | 0 | 0 | 551 | 325689 | R. Borndörfer | – | 161330.0* | binary set_partitioning |

eilA101-2 | easy | 65832 | 65832 | 0 | 0 | 100 | 959373 | J. Linderoth | eil | 880.920108 | benchmark binary benchmark_suitable set_partitioning |

irp | easy | 20315 | 20315 | 0 | 0 | 39 | 98254 | MIPLIB submission pool | – | 12159.492835397 | benchmark binary benchmark_suitable set_partitioning |

```
@article{LinderothLeeSavelsbergh2001,
author = {J. T. Linderoth and E. K. Lee and M. W. P. Savelsbergh},
journal = {{INFORMS} Journal on Computing},
pages = {191-209},
title = {A Parallel, Linear Programming Based Heuristic for
Large Scale Set Partitioning Problems},
volume = {13},
year = {2001}
}
@misc{tsplib,
key = {zzz tsplib},
note = {http://comopt.ifi.uni-heidelberg.de/software/TSPLIB95/},
title = {TSPLIB},
year = {2008}
}
```

Last Update Mai 28, 2020 by Gabriel Kressin

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