Submitter Variables Constraints Density Status Group Objective MPS File
János Höner 595066 901872 6.87028e-06 open 256344 tpl-tub-ss16.mps.gz

Model for the Post-Enrollment Course Timetabling Problem at TU Berlin from the summer term 2016 and the winter term 2016/2017

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 595066 589276
Constraints 901872 504739
Binaries 570303 565191
Integers 0 21046
Continuous 24763 3039
Implicit Integers 0 21046
Fixed Variables 0 0
Nonzero Density 6.87028e-06 1.10285e-05
Nonzeroes 3687100 3280220
Constraint Classification Properties
Original Presolved
Total 901872 504739
Empty 84802 0
Free 0 0
Singleton 309044 0
Aggregations 1439 428
Precedence 93254 87674
Variable Bound 197452 201065
Set Partitioning 0 29878
Set Packing 181990 181881
Set Covering 0 0
Cardinality 8832 0
Invariant Knapsack 252 564
Equation Knapsack 0 0
Bin Packing 204 2
Knapsack 609 471
Integer Knapsack 0 0
Mixed Binary 23994 2776
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
Constraint %
Variable %
Score

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 256344 256344 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to tpl-tub-ss16 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
tpl-tub-ws1617 747601 713749 0 33852 1154615 4720570 János Höner open 149397*
nb10tb 73340 16880 0 56460 150495 1172290 Serge Bisaillon open 13947488561*
rwth-timetable 923564 317079 0 606485 440134 4510790 Gerald Lach open 1234700*
neos-850681 2594 2479 16 99 2067 37113 NEOS Server Submission neos-pseudoapplication-12 easy 2472
supportcase31 488882 488760 0 122 26195 1833860 Domenico Salvagnin open -3720089.081*

Reference

@article{honer2015ip,
  title={An IP-based model for the post-enrollment-based course timetabling problem at TU Berlin},
  author={H{\"o}ner, J and Lach, G and Zorn, E},
  journal={MISTA},
  pages={331--344},
  year={2015}
}

Last Update Nov 17, 2018 by Gregor Hendel
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