Submitter Variables Constraints Density Status Group Objective MPS File
COR@L test set 11100 593 3.34167e-02 easy 404077441.12 leo2.mps.gz

Instance coming from the COR@L test set with unknown origin

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 11100 11100
Constraints 593 593
Binaries 11099 11099
Integers 0 0
Continuous 1 1
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.0334167 0.0334167
Nonzeroes 219959 219959
Constraint Classification Properties
Original Presolved
Total 593 593
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 9 9
Set Partitioning 0 0
Set Packing 428 428
Set Covering 9 16
Cardinality 0 0
Invariant Knapsack 0 0
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 0 0
Mixed Binary 147 140
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 2.641474
Constraint % 0.168634 0.168634 0.168634 0.168634
Variable % 0.018018 0.228812 0.243243 0.432432
Score 0.735245

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 404077441 404077441 0 1e-07 1e-07 - 2018-10-10 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to leo2 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
leo1 6731 6730 0 1 593 131218 COR@L test set easy 4.042275e+08
blp-ic98 13640 13550 0 90 717 191947 M. Lübbecke blp easy 4.491448e+03
blp-ar98 16021 15806 0 215 1128 200601 M. Lübbecke blp easy 6.205215e+03
blp-ir98 6097 6031 0 66 486 79152 M. Lübbecke blp easy 2.342315e+03
blp-ic97 9845 9753 0 92 923 118149 M. Lübbecke blp easy 4.025024e+03

Reference

@misc{coral,
 key = {zzz coral},
 note = {http://coral.ie.lehigh.edu/data-sets/mixed-integer-instances/},
 title = {{COR@L} {MIP} {I}nstances},
 year = {2010}
}

Last Update Nov 09, 2018 by Gregor Hendel
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