Instance - tpl-tub-ss16

tpl-tub-ss16: Instance-to-Instance Comparison Results

Type:	Instance
Submitter:	János Höner
Description:	Model for the Post-Enrollment Course Timetabling Problem at TU Berlin from the summer term 2016 and the winter term 2016/2017
	MIPLIB Entry


	Raw This is the CCM image before the decomposition procedure has been applied.	Decomposed This is the CCM image after a decomposition procedure has been applied. This is the image used by the MIC's image-based comparisons for this query instance.	Composite of MIC Top 5 Composite of the five decomposed CCM images from the MIC Top 5.	Composite of MIPLIB Top 5 Composite of the five decomposed CCM images from the MIPLIB Top 5.	Model Group Composite Image Composite of the decomposed CCM images for every instance in the same model group as this query.

Decomposed These decomposed images were created by GCG.
Name	tpl-tub-ws1617 [MIPLIB]	scpl4 [MIPLIB]	eil33-2 [MIPLIB]	iis-hc-cov [MIPLIB]	ns1952667 [MIPLIB]
Rank / ISS The image-based structural similarity (ISS) metric measures the Euclidean distance between the image-based feature vectors for the query instance and all other instances. A smaller ISS value indicates greater similarity.	1 / 0.493	2 / 1.022	3 / 1.122	4 / 1.128	5 / 1.138
Raw These images represent the CCM images in their raw forms (before any decomposition was applied) for the MIC top 5.

Decomposed These decomposed images were created by GCG.
Name	tpl-tub-ws1617 [MIPLIB]	rwth-timetable [MIPLIB]	neos-850681 [MIPLIB]	nb10tb [MIPLIB]	supportcase31 [MIPLIB]
Rank / ISS The image-based structural similarity (ISS) metric measures the Euclidean distance between the image-based feature vectors for the query instance and all model groups. A smaller ISS value indicates greater similarity.	1 / 0.493	22 / 1.348	60 / 1.595	371 / 1.989	804 / 2.190
Raw These images represent the CCM images in their raw forms (before any decomposition was applied) for the MIPLIB top 5.

Instance Summary

The table below contains summary information for tpl-tub-ss16, the five most similar instances to tpl-tub-ss16 according to the MIC, and the five most similar instances to tpl-tub-ss16 according to MIPLIB 2017.

	INSTANCE	SUBMITTER	DESCRIPTION	ISS	RANK
Parent Instance	tpl-tub-ss16 [MIPLIB]	János Höner	Model for the Post-Enrollment Course Timetabling Problem at TU Berlin from the summer term 2016 and the winter term 2016/2017	0.000000	-
MIC Top 5	tpl-tub-ws1617 [MIPLIB]	János Höner	Model for the Post-Enrollment Course Timetabling Problem at TU Berlin from the summer term 2016 and the winter term 2016/2017	0.493365	1
	scpl4 [MIPLIB]	Shunji Umetani	This is a random test instance generator for SCP using the scheme of the following paper, namely the column cost c[j] are integer randomly generated from [1,100]; every column covers at least one row; and every row is covered by at least two columns. see reference: E. Balas and A. Ho, Set covering algorithms using cutting planes, heuristics, and subgradient optimization: A computational study, Mathematical Programming, 12 (1980), 37-60. We have newly generated Classes I-N with the following parameter values, where each class has five instances. We have also generated reduced instances by a standard pricing method in the following paper: S. Umetani and M. Yagiura, Relaxation heuristics for the set covering problem, Journal of the Operations Research Society of Japan, 50 (2007), 350-375. You can obtain the instance generator program from the following web site. https://sites.google.com/site/shunjiumetani/benchmark	1.022215	2
	eil33-2 [MIPLIB]	J. Linderoth	Set partitioning problem approximation for capicated vehicle routing problem instance from TSPLIB	1.122012	3
	iis-hc-cov [MIPLIB]	Marc Pfetsch	23 "middlehard" Set-Covering Instances for MIPLIB: they have a small number of variables compared to the number of constraints and CPLEX 12.1 needs about one hour to solve them.For more information, have a look into the readme file which explains how the instances can be created.	1.127526	4
	ns1952667 [MIPLIB]	NEOS Server Submission	Instance coming from the NEOS Server with unknown application	1.138359	5
MIPLIB Top 5	tpl-tub-ws1617 [MIPLIB]	János Höner	Model for the Post-Enrollment Course Timetabling Problem at TU Berlin from the summer term 2016 and the winter term 2016/2017	0.493365	1
	rwth-timetable [MIPLIB]	Gerald Lach	University Course Timetabling from the RWTH Aachen	1.347655	22
	neos-850681 [MIPLIB]	NEOS Server Submission	Imported from the MIPLIB2010 submissions.	1.594550	60
	nb10tb [MIPLIB]	Serge Bisaillon	Forestry industry model	1.989377	371
	supportcase31 [MIPLIB]	Domenico Salvagnin	Instance coming from IBM developerWorks forum with unknown application.	2.189680	804

tpl-tub-ss16: Instance-to-Model Comparison Results

Model Group Assignment from MIPLIB:	no model group assignment
Assigned Model Group Rank/ISS in the MIC:	N.A. / N.A.

These are model group composite (MGC) images for the MIC top 5 model groups.
Name	independentset	generated	neos-pseudoapplication-21	neos-pseudoapplication-101	scp
Rank / ISS The image-based structural similarity (ISS) metric measures the Euclidean distance between the image-based feature vectors for the query instance and all other instances. A smaller ISS value indicates greater similarity.	1 / 1.122	2 / 1.232	3 / 1.246	4 / 1.271	5 / 1.327

Model Group Summary

The table below contains summary information for the five most similar model groups to tpl-tub-ss16 according to the MIC.

	MODEL GROUP	SUBMITTER	DESCRIPTION	ISS	RANK
MIC Top 5	independentset	Toni Sorrell	These models are based on Neil Sloane's Challenge problems: Independent Sets in Graphs.	1.121635	1
	generated	Simon Bowly	Randomly generated integer and binary programming models. These results are part of an early phase of work aimed at generating diverse and challenging MIP models for experimental testing. We have aimed to produce small integer and binary programming models which are reasonably difficult to solve and have varied structure, eliciting a range of behaviour in state of the art algorithms.	1.231653	2
	neos-pseudoapplication-21	NEOS Server Submission	Imported from the MIPLIB2010 submissions.	1.245620	3
	neos-pseudoapplication-101	NEOS Server Submission	Model coming from the NEOS Server with unknown application. Infeasibility claimed by CPLEX 12.6 and CPLEX 12.6.1 with extreme numerical caution emphasi after 4 and 2 hours computation, respectively.	1.271222	4
	scp	Shunji Umetani	This is a random test model generator for SCP using the scheme of the following paper, namely the column cost c[j] are integer randomly generated from [1,100]; every column covers at least one row; and every row is covered by at least two columns. see reference: E. Balas and A. Ho, Set covering algorithms using cutting planes, heuristics, and subgradient optimization: A computational study, Mathematical Programming, 12 (1980), 37-60. We have newly generated Classes I-N with the following parameter values, where each class has five models. We have also generated reduced models by a standard pricing method in the following paper: S. Umetani and M. Yagiura, Relaxation heuristics for the set covering problem, Journal of the Operations Research Society of Japan, 50 (2007), 350-375. You can obtain the model generator program from the following web site. https://sites.google.com/site/shunjiumetani/benchmark	1.326512	5

tpl-tub-ss16: Instance-to-Instance Comparison Results

Parent Instance (tpl-tub-ss16)

MIC Top 5 Instances

MIPLIB Top 5 Instances

Instance Summary

tpl-tub-ss16: Instance-to-Model Comparison Results

MIC Top 5 Model Groups

Model Group Summary