Submitter Variables Constraints Density Status Group Objective MPS File
MIPLIB submission pool 20315 39 1.24013e-01 easy 12159.492835397 irp.mps.gz

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 20315 20315
Constraints 39 39
Binaries 20315 20315
Integers 0 0
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.124013 0.124013
Nonzeroes 98254 98254
Constraint Classification Properties
Original Presolved
Total 39 39
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 0 0
Set Partitioning 39 39
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 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 12159.49 12159.49 3e-07 3e-07 0 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to irp 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
ds 67732 67732 0 0 656 1024060 MIPLIB submission pool open 189.6725*
air03 10757 10757 0 0 124 91028 G. Astfalk air easy 340160
ds-big 174997 174997 0 0 1042 4623440 Steffen Weider open 325.09366427*
nw04 87482 87482 0 0 36 636666 MIPLIB submission pool easy 16862
eil33-2 4516 4516 0 0 32 44243 J. Linderoth eil easy 934.007915999999

Reference

No bibliographic information available

Last Update Nov 09, 2018 by Gregor Hendel
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