Submitter Variables Constraints Density Status Group Objective MPS File
MIPLIB submission pool 490 540 4.62963e-03 easy exp_and_fc 29 nexp-50-20-1-1.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 490 466
Constraints 540 283
Binaries 245 233
Integers 0 0
Continuous 245 233
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00462963 0.00706714
Nonzeroes 1225 932
Constraint Classification Properties
Original Presolved
Total 540 283
Empty 0 0
Free 0 0
Singleton 245 0
Aggregations 0 0
Precedence 0 0
Variable Bound 245 233
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 50 50
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 2.267172
Constraint % 0.353357 0.462821 0.353357 5.65371
Variable % 0.429185 0.543478 0.429185 6.00858
Score 0.840231

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 29 29 0 0 0 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to nexp-50-20-1-1 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
nexp-150-20-1-5 4470 2235 0 2235 4620 11175 MIPLIB submission pool exp_and_fc easy 66
mc7 3040 1520 0 1520 1920 6080 F. Ortega, L. Wolsey mc easy 3417
mc8 3040 1520 0 1520 1920 6080 F. Ortega, L. Wolsey mc easy 1566
beasleyC3 2500 1250 0 1250 1750 5000 F. Ortega, L. Wolsey beasley easy 754
mc11 3040 1520 0 1520 1920 6080 F. Ortega, L. Wolsey mc easy 11689

Reference

No bibliographic information available

Last Update Nov 17, 2018 by Gregor Hendel
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