Submitter Variables Constraints Density Status Group Objective MPS File
A. Atamtürk 7644 2364 1.66416e-03 easy nxy-z 14409 n9-3.mps.gz

Capacitated network design problem

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 7644 7644
Constraints 2364 2364
Binaries 0 0
Integers 252 252
Continuous 7392 7392
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00166416 0.00166416
Nonzeroes 30072 30072
Constraint Classification Properties
Original Presolved
Total 2364 2364
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 176 176
Precedence 0 0
Variable Bound 0 0
Set Partitioning 0 0
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 2020 2020
General Linear 168 168
Indicator 0 0

Structure

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

value min median mean max
Components 1.94939
Constraint % 1.01523 1.05561 1.01523 4.56853
Variable % 1.09890 1.13636 1.09890 4.39560
Score 0.91722

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
2 1 14409 14409 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.
1 2 14409 14409 0 0 0 - 2018-10-13 Solution imported from MIPLIB2010.

Similar instances in collection

The following instances are most similar to n9-3 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
n6-3 7178 0 222 6956 2760 28268 A. Atamtürk nxy-z easy 15175
n5-3 2550 0 150 2400 1062 9900 A. Atamtürk nxy-z easy 8105
n7-3 5626 0 174 5452 2336 22156 A. Atamtürk nxy-z easy 15426
n13-3 3472 0 186 3286 1723 13516 A. Atamtürk nxy-z easy 13385
ger50-17-ptp-pop-3t 4892 0 540 4352 545 14285 C. Raack ger50 open 5235.5174*

Reference

@article{Atamturk2002,
 author = {A. Atamt{\"u}rk},
 journal = {Mathematical Programming},
 pages = {425--437},
 title = {On Capacitated Network Design Cut-Set Polyhedra},
 volume = {92},
 year = {2002}
}

@misc{bcol,
 key = {zzz bcol},
 note = {http://ieor.berkeley.edu/~atamturk/data/},
 title = {{B}erkeley {C}omputational {O}ptimization {L}ab -- {D}ata
{S}ets},
 year = {2010}
}

Last Update Nov 09, 2018 by Gregor Hendel
generated with R Markdown
© 2018 by Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB)
Imprint