Submitter | Variables | Constraints | Density | Status | Group | Objective | MPS File |
---|---|---|---|---|---|---|---|
J. Walser | 1339 | 3052 | 3.948e-03 | easy | acc-tight | 0 | acc-tight5.mps.gz |
ACC basketball scheduling instance Imported from MIPLIB2010.
Detailed explanation of the following tables can be found here.
Original | Presolved | |
---|---|---|
Variables | 1339 | 1335 |
Constraints | 3052 | 3046 |
Binaries | 1339 | 1335 |
Integers | 0 | 0 |
Continuous | 0 | 0 |
Implicit Integers | 0 | 0 |
Fixed Variables | 0 | 0 |
Nonzero Density | 0.00394800 | 0.00395607 |
Nonzeroes | 16134 | 16087 |
Original | Presolved | |
---|---|---|
Total | 3052 | 3046 |
Empty | 0 | 0 |
Free | 0 | 0 |
Singleton | 0 | 0 |
Aggregations | 3 | 3 |
Precedence | 1649 | 1649 |
Variable Bound | 41 | 41 |
Set Partitioning | 241 | 241 |
Set Packing | 248 | 248 |
Set Covering | 10 | 180 |
Cardinality | 33 | 33 |
Invariant Knapsack | 818 | 642 |
Equation Knapsack | 0 | 0 |
Bin Packing | 0 | 0 |
Knapsack | 0 | 0 |
Integer Knapsack | 0 | 0 |
Mixed Binary | 9 | 9 |
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 | 1.041393 | ||||
Constraint % | 1.197600 | 3.58616 | 2.12908 | 18.2967 | |
Variable % | 0.991609 | 10.00000 | 2.32647 | 81.6934 | |
Score | 0.205412 |
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 | 0 | 0 | 0 | 0 | 0 | - | 2018-10-11 | Solution found during MIPLIB2017 problem selection. |
The following instances are most similar to acc-tight5 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.
@article{NemhauserTrick1998,
author = {G. L. Nemhauser and M. A. Trick},
journal = {Operations Research},
language = {English},
number = {1},
pages = {1--8},
title = {Scheduling a Major College Basketball Conference},
volume = {46},
year = {1998}
}
@misc{Walser1998,
author = {J. P. Walser},
note = {http://www.ps.uni-saarland.de/~walser/acc/acc.html},
title = {Solving the {ACC} Basketball Scheduling Problem with Integer Local
Search},
year = {1998}
}