icir97_tension

benchmark benchmark_suitable aggregations mixed_binary general_linear

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
MIPLIB submission pool	2494	1203	7.44363e-03	easy	–	6375	icir97_tension.mps.gz

Imported from the MIPLIB2010 submissions.

Location of instance in collection

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
	Original	Presolved
Variables	2494	2324
Constraints	1203	1179
Binaries	262	261
Integers	573	573
Continuous	1659	1490
Implicit Integers	0	0
Fixed Variables	167	0
Nonzero Density	0.00744363	0.00627556
Nonzeroes	22333	17195

Constraint Classification Properties
	Original	Presolved
Total	1203	1179
Empty	0	0
Free	0	0
Singleton	0	0
Aggregations	0	115
Precedence	0	0
Variable Bound	0	0
Set Partitioning	0	0
Set Packing	0	0
Set Covering	0	0
Cardinality	0	0
Invariant Knapsack	0	0
Equation Knapsack	0	0
Bin Packing	0	0
Knapsack	0	0
Integer Knapsack	0	0
Mixed Binary	630	491
General Linear	573	573
Indicator	0	0

Structure

Available nonzero structure and decomposition information. Further information can be found here.

Nonzero entries of original problem

Nonzero entries after trivial presolving

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

	value	min	median	mean	max
Components	1.724276
Constraint %		0.0848176	0.988452	0.0848176	31.2977
Variable %		0.0802246	0.898670	0.0802246	28.0385
Score	0.420908

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	6375	6375	0	0	0	-	2018-10-11	Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to icir97_tension 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	Status	Variables	Binaries	Integers	Continuous	Constraints	Nonz.	Submitter	Group	Objective	Tags
ic97_tension	easy	703	176	4	523	319	2070	MIPLIB submission pool	–	3942	benchmark_suitable aggregations mixed_binary general_linear
nh97_tension	easy	1576	257	361	958	737	5264	MIPLIB submission pool	–	1418	benchmark_suitable aggregations mixed_binary general_linear
timtab1CUTS	easy	397	77	94	226	371	1742	C. Liebchen, R. Möhring	timtab	764771.9999997859	benchmark_suitable aggregations precedence variable_bound invariant_knapsack mixed_binary general_linear
csched007	easy	1758	1457	0	301	351	6379	Tallys Yunes	csched	350.9999999999955	benchmark benchmark_suitable aggregations variable_bound set_partitioning mixed_binary general_linear
nag	open	2884	1350	35	1499	5840	26499	N. Shenoy	–	945*	aggregations precedence variable_bound set_partitioning mixed_binary general_linear

Reference

No bibliographic information available