Submitter Variables Constraints Density Status Group Objective MPS File
János Höner 747601 1154615 5.46874e-06 open 149397 tpl-tub-ws1617.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 747601 707630
Constraints 1154615 690366
Binaries 713749 674652
Integers 0 28846
Continuous 33852 4132
Implicit Integers 0 28846
Fixed Variables 0 0
Nonzero Density 5.46874e-06 8.05884e-06
Nonzeroes 4720570 3936940
Constraint Classification Properties
Original Presolved
Total 1154615 690366
Empty 85028 0
Free 0 0
Singleton 320953 0
Aggregations 1546 297
Precedence 141482 124535
Variable Bound 278863 246549
Set Partitioning 0 37685
Set Packing 283662 276243
Set Covering 0 0
Cardinality 8839 0
Invariant Knapsack 275 690
Equation Knapsack 0 0
Bin Packing 298 5
Knapsack 612 450
Integer Knapsack 0 0
Mixed Binary 33057 3912
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 149397 149397 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-ws1617 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-ss16 595066 570303 0 24763 901872 3687100 János Höner open 256344*
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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