neos-1423785

aggregations precedence variable_bound mixed_binary

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
NEOS Server Submission	21506	25721	1.15848e-04	open	neos-pseudoapplication-98	21893.26*	neos-1423785.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	21506	21506
Constraints	25721	25546
Binaries	1920	1920
Integers	0	0
Continuous	19586	19586
Implicit Integers	0	0
Fixed Variables	0	0
Nonzero Density	0.000115848	0.000116005
Nonzeroes	64082	63732

Constraint Classification Properties
	Original	Presolved
Total	25721	25546
Empty	0	0
Free	0	0
Singleton	0	0
Aggregations	8432	8432
Precedence	4617	4617
Variable Bound	5180	5005
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	7492	7492
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	3.317436
Constraint %		0.00391	0.0340426	0.0117435	0.313161
Variable %		0.00930	0.0450876	0.0185995	0.376639
Score	0.706223

Best Known Solution(s)

Find solutions below. Download the archive containing all solutions from the Download page.

## Warning in lapply(df["exactobjval"], as.numeric): NAs introduced by coercion

ID	Objective	Exact	Cons. Viol	Submitter	Date	Description
3	21893.26	21893.33	1e-06	Edward Rothberg	2020-07-17	Obtained with the Gurobi 9.0 solution improvement heuristic
2	21921.33		0e+00	Robert Ashford and Alkis Vazacopoulus	2019-12-18	Found using ODH\|CPlex
1	22047.33	22047.33	0e+00	-	2018-10-11	Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to neos-1423785 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
uccase7	hard	33020	7224	0	25796	47132	335644	Daniel Espinoza	uccase	26834.28427331005	aggregations precedence variable_bound set_partitioning invariant_knapsack binpacking knapsack mixed_binary
neos-4321076-ruwer	hard	361730	122	0	361608	509809	1265750	Jeff Linderoth	neos-pseudoapplication-98	2135.200000000028	aggregations variable_bound cardinality mixed_binary
uccase8	easy	37413	9576	0	27837	53709	214625	Daniel Espinoza	uccase	11167.74532	benchmark_suitable aggregations variable_bound set_partitioning invariant_knapsack binpacking knapsack mixed_binary
rocI-3-11	easy	5132	3894	762	476	8165	20540	Joerg Rambau	rocI	-50403	numerics aggregations precedence variable_bound set_partitioning mixed_binary general_linear
uccase9	easy	33242	8064	0	25178	49565	332316	Daniel Espinoza	uccase	10993.131409	benchmark benchmark_suitable aggregations precedence variable_bound set_partitioning invariant_knapsack binpacking knapsack mixed_binary

Reference

No bibliographic information available