Submitter Variables Constraints Density Status Group Objective MPS File
Alexandra M. Newman 745 26159 6.62567e-03 easy 3336.23984845 ci-s4.mps.gz

minimizing violence in a counterinsurgency model (lot os regressions built in)

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 745 745
Constraints 26159 26159
Binaries 355 355
Integers 150 150
Continuous 240 240
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00662567 0.00662567
Nonzeroes 129124 129124
Constraint Classification Properties
Original Presolved
Total 26159 26159
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 115 115
Precedence 93 93
Variable Bound 390 390
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 1651 1651
General Linear 23910 23910
Indicator 0 0

Structure

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

value min median mean max
Components 1.612784
Constraint % 0.003820 2.34215 0.003820 6.22204
Variable % 0.268456 2.10738 0.268456 9.39597
Score 0.894018

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 3336.24 3336.24 0 0 0 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to ci-s4 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 Variables Binaries Integers Continuous Constraints Nonz. Submitter Group Status Objective
nag 2884 1350 35 1499 5840 26499 N. Shenoy open 1034.9999999*
neos-3355120-tarago 7800 4700 3100 0 86633 265500 Hans Mittelmann neos-pseudoapplication-52 open -11016684.60923*
lectsched-5-obj 21805 21389 416 0 38884 239608 Harald Schilly lectsched easy 24
neos-3709489-menik 48005 31506 15424 1075 59587 199272 Jeff Linderoth neos-pseudoapplication-44 easy Unbounded
neos-3699044-maipo 48007 31506 15424 1077 59589 199334 Jeff Linderoth neos-pseudoapplication-63 easy Unbounded

Reference

We have a working paper, to be submitted in a  few months.

Last Update Nov 19, 2018 by Gregor Hendel
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