nag: Instance-to-Instance Comparison Results

Type: Instance
Submitter: N. Shenoy
Description: Unknown Application from COR@L
MIPLIB Entry

Parent Instance (nag)

All other instances below were be compared against this "query" instance.

nag Raw nag Decomposed nag Composite of MIC top 5 nag Composite of MIPLIB top 5 nag Model Group Composite
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.

MIC Top 5 Instances

These are the 5 decomposed CCM images that are most similar to decomposed CCM image for the the query instance, according to the ISS metric.

Decomposed These decomposed images were created by GCG.
neos5 decomposed f2gap801600 decomposed mine-166-5 decomposed mod010 decomposed scpl4 decomposed
Name neos5 [MIPLIB] f2gap801600 [MIPLIB] mine-166-5 [MIPLIB] mod010 [MIPLIB] scpl4 [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 / 1.252 2 / 1.293 3 / 1.309 4 / 1.320 5 / 1.326
Raw These images represent the CCM images in their raw forms (before any decomposition was applied) for the MIC top 5.
neos5 raw f2gap801600 raw mine-166-5 raw mod010 raw scpl4 raw

MIPLIB Top 5 Instances

These are the 5 instances that are most closely related to the query instance, according to the instance statistic-based similarity measure employed by MIPLIB 2017

Decomposed These decomposed images were created by GCG.
icir97_tension decomposed arki001 decomposed neos-4264598-oueme decomposed lectsched-5-obj decomposed supportcase17 decomposed
Name icir97_tension [MIPLIB] arki001 [MIPLIB] neos-4264598-oueme [MIPLIB] lectsched-5-obj [MIPLIB] supportcase17 [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.
109 / 1.787 289 / 2.014 369 / 2.062 903 / 2.293 947 / 2.329
Raw These images represent the CCM images in their raw forms (before any decomposition was applied) for the MIPLIB top 5.
icir97_tension raw arki001 raw neos-4264598-oueme raw lectsched-5-obj raw supportcase17 raw

Instance Summary

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

INSTANCE SUBMITTER DESCRIPTION ISS RANK
Parent Instance nag [MIPLIB] N. Shenoy Unknown Application from COR@L 0.000000 -
MIC Top 5 neos5 [MIPLIB] NEOS Server Submission Imported from the MIPLIB2010 submissions. 1.252251 1
f2gap801600 [MIPLIB] Salim Haddadi Restrictions of well-known hard generalized assignment problem instances (D10400,D20400,D40400,D15900,D30900,D60900,D201600,D401600,D801600) 1.292889 2
mine-166-5 [MIPLIB] Andreas Bley Multi-period mine production scheduling instance 1.308874 3
mod010 [MIPLIB] MIPLIB submission pool Imported from the MIPLIB2010 submissions. 1.320086 4
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 1.326166 5
MIPLIB Top 5 icir97_tension [MIPLIB] MIPLIB submission pool Imported from the MIPLIB2010 submissions. 1.787437 109
arki001 [MIPLIB] MIPLIB submission pool Imported from the MIPLIB2010 submissions. 2.014288 289
neos-4264598-oueme [MIPLIB] Jeff Linderoth (None provided) 2.061572 369
lectsched-5-obj [MIPLIB] Harald Schilly scheduling lectures at university - smaller subset of data with objective to minimize certain overlappings 2.293428 903
supportcase17 [MIPLIB] Michael Winkler MIP instances collected from Gurobi forum with unknown application 2.328531 947


nag: 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.

MIC Top 5 Model Groups

These are the 5 model group composite (MGC) images that are most similar to the decomposed CCM image for the query instance, according to the ISS metric.

These are model group composite (MGC) images for the MIC top 5 model groups.
Model group: neos-pseudoapplication-21 Model group: independentset Model group: generated Model group: scp Model group: neos-pseudoapplication-101
Name neos-pseudoapplication-21 independentset generated scp neos-pseudoapplication-101
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 / 1.422 2 / 1.463 3 / 1.492 4 / 1.536 5 / 1.622

Model Group Summary

The table below contains summary information for the five most similar model groups to nag according to the MIC.

MODEL GROUP SUBMITTER DESCRIPTION ISS RANK
MIC Top 5 neos-pseudoapplication-21 NEOS Server Submission Imported from the MIPLIB2010 submissions. 1.422269 1
independentset Toni Sorrell These models are based on Neil Sloane's Challenge problems: Independent Sets in Graphs. 1.463244 2
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. 1.491784 3
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 1.536256 4
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. 1.621681 5