Submitter Variables Constraints Density Status Group Objective MPS File
F. Ramos 2187 2187 6.85871e-03 open 220 ramos3.mps.gz

Set covering problem from a product manufacturing application

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 2187 2187
Constraints 2187 2187
Binaries 2187 2187
Integers 0 0
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00685871 0.00685871
Nonzeroes 32805 32805
Constraint Classification Properties
Original Presolved
Total 2187 2187
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 0 0
Set Partitioning 0 0
Set Packing 0 0
Set Covering 0 2187
Cardinality 0 0
Invariant Knapsack 2187 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

Structure

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

value min median mean max
Components 0.30103
Constraint % 100 100 100 100
Variable % 100 100 100 100
Score 0.00000

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
1 220 220 0 0 0 - 2018-10-12 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to ramos3 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
seymour 1372 1372 0 0 4944 33549 W. Cook, P. Seymour easy 423
iis-glass-cov 214 214 0 0 5375 56133 Marc Pfetsch iis easy 21
glass-sc 214 214 0 0 6119 63918 Marc Pfetsch maxfeassub easy 23
ex1010-pi 25200 25200 0 0 1468 102114 M. Winkler open 239*
iis-hc-cov 297 297 0 0 9727 142971 Marc Pfetsch iis easy 17

Reference

No bibliographic information available

Last Update Nov 09, 2018 by Gregor Hendel
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