Submitter Variables Constraints Density Status Group Objective MPS File
M. Lübbecke 6097 486 2.67122e-02 easy blp 2342.315488 blp-ir98.mps.gz

Railway line planning instance

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 6097 6096
Constraints 486 486
Binaries 6031 6031
Integers 0 64
Continuous 66 1
Implicit Integers 0 64
Fixed Variables 1 0
Nonzero Density 0.0267122 0.0267162
Nonzeroes 79152 79151
Constraint Classification Properties
Original Presolved
Total 486 486
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 420 420
Set Covering 0 0
Cardinality 0 0
Invariant Knapsack 0 0
Equation Knapsack 0 1
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 0 0
Mixed Binary 66 1
General Linear 0 64
Indicator 0 0

Structure

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

value min median mean max
Components 2.624282
Constraint % 0.2057610 0.205761 0.205761 0.205761
Variable % 0.0492045 0.235518 0.229621 0.295227
Score 0.862162

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 2342.315 2342.315 0 1.2e-05 1.2e-05 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to blp-ir98 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
blp-ar98 16021 15806 0 215 1128 200601 M. Lübbecke blp easy 6205.215
blp-ic98 13640 13550 0 90 717 191947 M. Lübbecke blp easy 4491.448
blp-ic97 9845 9753 0 92 923 118149 M. Lübbecke blp easy 4025.024
neos-3116779-oban 5141 5140 0 1 328 20561 Jeff Linderoth neos-pseudoapplication-26 easy 0.000
neos-4409277-trave 14363 14362 0 1 7875 204518 Jeff Linderoth neos-pseudoapplication-47 hard 3.000

Reference

No bibliographic information available

Last Update Nov 19, 2018 by Gregor Hendel
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