Submitter Variables Constraints Density Status Group Objective MPS File
Double-Click SAS 37297 1653 7.27883e-03 open 1780779.6801 dc1l.mps.gz

Crew scheduling instance

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 37297 37286
Constraints 1653 1650
Binaries 35638 35636
Integers 0 1636
Continuous 1659 14
Implicit Integers 0 1636
Fixed Variables 0 0
Nonzero Density 0.00727883 0.00729101
Nonzeroes 448754 448557
Constraint Classification Properties
Original Presolved
Total 1653 1650
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 2 0
Precedence 0 0
Variable Bound 0 0
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 1651 14
General Linear 0 1636
Indicator 0 0

Structure

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

value min median mean max
Components 0.301030
Constraint % 99.1515 99.1515 99.1515 99.1515
Variable % 99.9571 99.9571 99.9571 99.9571
Score 0.000425

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 1780780 1780780 0 0 0 - 2018-10-12 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to dc1l 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
nsr8k 38356 32040 0 6316 6284 371608 MIPLIB submission pool open 18507854.9999999*
biella1 7328 6110 0 1218 1203 71489 Double-Click SAS easy 3065005.78
dolom1 11612 9720 0 1892 1803 190413 Double-Click SAS hard 6609253
trento1 7687 6415 0 1272 1265 93571 MIPLIB submission pool easy 5189487
dc1c 10039 8380 0 1659 1649 121158 Double-Click SAS hard 1767903.6501

Reference

@article{FischettiGloverLodi2005,
 author = {M. Fischetti and F. Glover and A. Lodi},
 journal = {Mathematical Programming},
 pages = {91--104},
 title = {The feasibility pump},
 volume = {104},
 year = {2005}
}

@article{FischettiLodi2003,
 author = {Fischetti, Matteo and Lodi, Andrea},
 issn = {0025-5610},
 issue = {1},
 journal = {Mathematical Programming},
 keyword = {Mathematics and Statistics},
 pages = {23-47},
 publisher = {Springer},
 title = {Local branching},
 volume = {98},
 year = {2003}
}

Last Update Nov 09, 2018 by Gregor Hendel
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