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

Christopher Cullenbine | 100 | 30 | 6.96667e-02 | easy | -- | -1.50000000000001 | b-ball.mps.gz |

It is a very simple problem, yet CPLEX will not close the MIPGAP. CPLEX seems to get stuck in a loop or something.

Imported from the MIPLIB2010 submissions.

Detailed explanation of the following tables can be found here.

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

Variables | 100 | 100 |

Constraints | 30 | 30 |

Binaries | 88 | 88 |

Integers | 0 | 0 |

Continuous | 12 | 12 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.0696667 | 0.0696667 |

Nonzeroes | 209 | 209 |

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

Total | 30 | 30 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 11 | 11 |

Variable Bound | 0 | 0 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 0 |

Set Covering | 0 | 0 |

Cardinality | 8 | 8 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 11 | 11 |

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 | 1.00 | ||||

Constraint % | 3.33333 | 7.03704 | 3.33333 | 36.6667 | |

Variable % | 11.00000 | 11.11110 | 11.00000 | 12.0000 | |

Score | 0.56 |

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 | -1.5 | -1.5 | 0 | 0 | 0 | - | 2018-10-12 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to b-ball 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-1330346 | easy | 2664 | 2664 | 0 | 0 | 4248 | 13032 | NEOS Server Submission | neos-pseudoapplication-49 | 8 | binary decomposition benchmark_suitable aggregations precedence variable_bound cardinality |

csched007 | easy | 1758 | 1457 | 0 | 301 | 351 | 6379 | Tallys Yunes | csched | 351 | benchmark benchmark_suitable aggregations variable_bound set_partitioning mixed_binary general_linear |

csched008 | easy | 1536 | 1284 | 0 | 252 | 351 | 5687 | Tallys Yunes | csched | 173 | benchmark benchmark_suitable aggregations variable_bound set_partitioning mixed_binary general_linear |

supportcase14 | easy | 304 | 304 | 0 | 0 | 234 | 1129 | Michael Winkler | -- | 288 | binary aggregations variable_bound set_partitioning set_packing cardinality |

supportcase16 | easy | 319 | 319 | 0 | 0 | 130 | 1076 | Michael Winkler | -- | 288 | binary aggregations variable_bound set_partitioning set_packing cardinality |

`No bibliographic information available`

Last Update Mai 20, 2021 by Philipp Wellner

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