Submitter Variables Constraints Density Status Group Objective MPS File
Alexandra M. Newman 5475 5984 1.01137e-03 easy -1167 gus-sch.mps.gz

course scheduling model

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 5475 2258
Constraints 5984 2585
Binaries 2736 1924
Integers 2736 331
Continuous 3 3
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00101137 0.00232417
Nonzeroes 33135 13566
Constraint Classification Properties
Original Presolved
Total 5998 2610
Empty 0 0
Free 0 0
Singleton 35 0
Aggregations 48 46
Precedence 0 1596
Variable Bound 5473 657
Set Partitioning 0 0
Set Packing 0 37
Set Covering 0 47
Cardinality 2 2
Invariant Knapsack 48 41
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 120 89
Mixed Binary 116 2
General Linear 156 93
Indicator 0 0

Structure

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

value min median mean max
Components 3.033826
Constraint % 0.0771307 0.0821657 0.0771307 0.192827
Variable % 0.0883002 0.0921838 0.0883002 0.176600
Score 0.889957

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 -1167 -1167 0 0 0 - 2018-10-12 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to gus-sch 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
comp08-2idx 11554 11487 67 0 12536 51608 Matias Sørensen coursetimetabling easy 37
mkc 5325 5323 0 2 3411 17038 J. Kalagnanam, M. Dawande hard -563.8460100132
qiu 840 48 0 792 1192 3432 Y. Chiu, J. Eckstein easy -132.87313695
sct5 37265 23004 0 14261 13304 147037 Siemens sct open -228.1172303718*
neos-555343 3815 3800 15 0 3326 16967 NEOS Server Submission neos-pseudoapplication-15 easy 1512800

Reference

I don't know too much about this one.

Last Update Nov 19, 2018 by Gregor Hendel
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