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.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
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
Constraint Classification Properties
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

Structure

Available nonzero structure and decomposition information. Further information can be found here.

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

Best Known Solution(s)

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.

Similar instances in collection

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.

Instance Variables Binaries Integers Continuous Constraints Nonz. Submitter Group Status Objective
acc-tight2 1620 1620 0 0 2520 15327 J. Walser acc-tight easy 0
acc-tight4 1620 1620 0 0 3285 17073 J. Walser acc-tight easy 0
neos18 3312 3312 0 0 11402 24614 NEOS Server Submission neos-pseudoapplication-49 easy 16
neos-1330346 2664 2664 0 0 4248 13032 NEOS Server Submission neos-pseudoapplication-49 easy 8
physiciansched6-2 111827 109346 0 2481 168336 480259 Pelin Damci-Kurt physiciansched easy 49324

Reference

@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}
}

Last Update Nov 09, 2018 by Gregor Hendel
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