Submitter Variables Constraints Density Status Group Objective MPS File
He Renjie 81681 44804 1.90777e-04 hard satellites -25 satellites3-25.mps.gz

Ihe attachment is some instances generated from real life satelliteschedule problem data,these instances are easier comparable to real lifeproblem. The work is done by me and Alberto Ceselli from Univeristy ofMilano. I donnot know it is hard enough or not, if needs , I can generatemore difficult instances.

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 81681 81640
Constraints 44804 44804
Binaries 79961 79960
Integers 0 0
Continuous 1720 1680
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.000190777 0.000190862
Nonzeroes 698176 698134
Constraint Classification Properties
Original Presolved
Total 44804 44804
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 1189 1189
Precedence 29 29
Variable Bound 1 1
Set Partitioning 25985 26070
Set Packing 110 110
Set Covering 0 0
Cardinality 3479 3394
Invariant Knapsack 9251 9251
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 29
Integer Knapsack 0 0
Mixed Binary 4760 4731
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 2.932474
Constraint % 0.0647264 0.0680547 0.0647264 2.91045
Variable % 0.0722685 0.1124180 0.1077900 5.44953
Score 0.579695

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 -25 -25 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to satellites3-25 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
satellites4-25 95637 93747 0 1890 51712 821192 He Renjie satellites hard -25
satellites2-40 35378 34324 0 1054 20916 283668 He Renjie satellites easy -19
satellites2-25 35378 34324 0 1054 20916 283668 He Renjie satellites easy -19
satellites2-60-fs 35378 34324 0 1054 16516 125048 He Renjie satellites easy -19
piperout-d20 11961 11788 149 24 15562 190915 Gleb Belov piperout easy 29948

Reference

No bibliographic information available

Last Update Nov 09, 2018 by Gregor Hendel
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