Instance - gasprod1-2

gasprod1-2: Instance-to-Instance Comparison Results

Type:	Instance
Submitter:	Andrew Stamps
Description:	Production planning model for an industrial gas process. Three instances of the model included.
	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	gasprod1-3 [MIPLIB]	gasprod1-1 [MIPLIB]	2club200v15p5scn [MIPLIB]	gasprod2-1 [MIPLIB]	gasprod2-2 [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 / 0.334	2 / 0.623	3 / 1.462	4 / 1.529	5 / 1.530
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	gasprod1-3 [MIPLIB]	gasprod1-1 [MIPLIB]	gasprod2-2 [MIPLIB]	neos-4358725-tagus [MIPLIB]	unitcal_7 [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 / 0.334	2 / 0.623	5 / 1.530	299 / 2.351	545 / 2.506
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 gasprod1-2, the five most similar instances to gasprod1-2 according to the MIC, and the five most similar instances to gasprod1-2 according to MIPLIB 2017.

	INSTANCE	SUBMITTER	DESCRIPTION	ISS	RANK
Parent Instance	gasprod1-2 [MIPLIB]	Andrew Stamps	Production planning model for an industrial gas process. Three instances of the model included.	0.000000	-
MIC Top 5	gasprod1-3 [MIPLIB]	Andrew Stamps	Production planning model for an industrial gas process. Three instances of the model included.	0.334310	1
	gasprod1-1 [MIPLIB]	Andrew Stamps	Production planning model for an industrial gas process. Three instances of the model included.	0.623152	2
	2club200v15p5scn [MIPLIB]	Balabhaskar Balasundaram	Maximum 2-club instance; graph; clique relaxations Solved with Gurobi 8.1 on 24 cores in approx. 23 hours.	1.461719	3
	gasprod2-1 [MIPLIB]	Andrew Stamps	Production planning model of a second industrial gas system. Two model instances included.	1.529459	4
	gasprod2-2 [MIPLIB]	Andrew Stamps	Production planning model of a second industrial gas system. Two model instances included.	1.529508	5
MIPLIB Top 5	gasprod1-3 [MIPLIB]	Andrew Stamps	Production planning model for an industrial gas process. Three instances of the model included.	0.334310	1
	gasprod1-1 [MIPLIB]	Andrew Stamps	Production planning model for an industrial gas process. Three instances of the model included.	0.623152	2
	gasprod2-2 [MIPLIB]	Andrew Stamps	Production planning model of a second industrial gas system. Two model instances included.	1.529508	5
	neos-4358725-tagus [MIPLIB]	Jeff Linderoth	(None provided)	2.351382	299
	unitcal_7 [MIPLIB]	R. O’Neill	California seven day unit commitment problem	2.506018	545

gasprod1-2: Instance-to-Model Comparison Results

Model Group Assignment from MIPLIB:	gasprod
Assigned Model Group Rank/ISS in the MIC:	18 / 2.248

These are model group composite (MGC) images for the MIC top 5 model groups.
Name	f2gap	2hopcds	mod	neos-pseudoapplication-101	independentset
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 / 1.859	2 / 1.888	3 / 1.918	4 / 1.932	5 / 1.941

Model Group Summary

The table below contains summary information for the five most similar model groups to gasprod1-2 according to the MIC.

	MODEL GROUP	SUBMITTER	DESCRIPTION	ISS	RANK
MIC Top 5	f2gap	Salim Haddadi	Restrictions of well-known hard generalized assignment problem models (D10400,D20400,D40400,D15900,D30900,D60900,D201600,D401600,D801600)	1.858936	1
	2hopcds	Austin Buchanan	A problem in wireless networks. The objective is to select a minimum number of relay nodes so that any two nonadjacent nodes can communicate by way of the chosen relay nodes in at most s hops, where s is a problem input. The 2-hop case of this problem can be formulated as a set cover/hitting set problem with n binary variables and n^2 constraints: _{ k N(i) N(j) } x_k 1 for nonadjacent node pairs {i,j}. Despite the formulation's simplicity, models with as few as 120 variables are left unsolved after one hour using Gurobi 7.0.2.	1.888206	2
	mod	MIPLIB submission pool	Imported from the MIPLIB2010 submissions.	1.918138	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.	1.931969	4
	independentset	Toni Sorrell	These models are based on Neil Sloane's Challenge problems: Independent Sets in Graphs.	1.941472	5

gasprod1-2: Instance-to-Instance Comparison Results

Parent Instance (gasprod1-2)

MIC Top 5 Instances

MIPLIB Top 5 Instances

Instance Summary

gasprod1-2: Instance-to-Model Comparison Results

MIC Top 5 Model Groups

Model Group Summary