nexp-50-20-1-1

decomposition variable_bound mixed_binary

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
MIPLIB submission pool	490	540	4.62963e-03	easy	exp_and_fc	28.99999999999999	nexp-50-20-1-1.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	490	466
Constraints	540	283
Binaries	245	233
Integers	0	0
Continuous	245	233
Implicit Integers	0	0
Fixed Variables	0	0
Nonzero Density	0.00462963	0.00706714
Nonzeroes	1225	932

Constraint Classification Properties
	Original	Presolved
Total	540	283
Empty	0	0
Free	0	0
Singleton	245	0
Aggregations	0	0
Precedence	0	0
Variable Bound	245	233
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	50	50
General Linear	0	0
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	2.267172
Constraint %		0.353357	0.462821	0.353357	5.65371
Variable %		0.429185	0.543478	0.429185	6.00858
Score	0.840231

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	29	29	0	0	0	-	2018-10-11	Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to nexp-50-20-1-1 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	Continuous	Constraints	Nonz.	Submitter	Group	Objective	Tags
nexp-150-20-1-5	easy	4470	2235	2235	4620	11175	MIPLIB submission pool	exp_and_fc	66	decomposition variable_bound mixed_binary
mc7	easy	3040	1520	1520	1920	6080	F. Ortega, L. Wolsey	mc	3417	decomposition benchmark_suitable variable_bound mixed_binary
mc8	easy	3040	1520	1520	1920	6080	F. Ortega, L. Wolsey	mc	1566	decomposition benchmark_suitable variable_bound mixed_binary
beasleyC3	easy	2500	1250	1250	1750	5000	F. Ortega, L. Wolsey	beasley	753.9999999999128	benchmark decomposition benchmark_suitable aggregations variable_bound mixed_binary
mc11	easy	3040	1520	1520	1920	6080	F. Ortega, L. Wolsey	mc	11688.99999999966	benchmark decomposition benchmark_suitable variable_bound mixed_binary

Reference

No bibliographic information available