Submitter Variables Constraints Density Status Group Objective MPS File
Haroldo Gambini Santos 11650 4872 3.66551e-03 easy nursescheduling 338 nursesched-sprint-hidden09.mps.gz

Nurse Scheduling Problems from the First International Nurse Rostering Competition - INRC 2010

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 11650 10820
Constraints 4872 4190
Binaries 11630 10800
Integers 20 20
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00366551 0.00451564
Nonzeroes 208050 204720
Constraint Classification Properties
Original Presolved
Total 4872 4190
Empty 0 0
Free 0 0
Singleton 10 0
Aggregations 0 0
Precedence 0 0
Variable Bound 0 0
Set Partitioning 604 644
Set Packing 1410 1490
Set Covering 320 0
Cardinality 388 336
Invariant Knapsack 2040 1700
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 0 0
Mixed Binary 80 0
General Linear 20 20
Indicator 0 0

Structure

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

value min median mean max
Components 1.491362
Constraint % 0.1670640 2.55370 2.52983 4.96420
Variable % 0.0924214 3.32717 2.40296 7.48614
Score 0.735227

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
1 338 338 0 0 0 - 2018-10-12 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to nursesched-sprint-hidden09 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
nursesched-medium-hint03 34248 34170 78 0 14062 622800 Haroldo Gambini Santos nursescheduling hard 115
nursesched-sprint-late03 11690 11670 20 0 5032 208410 Haroldo Gambini Santos nursescheduling easy 48
nursesched-sprint02 10250 10230 20 0 3522 204000 Haroldo Gambini Santos nursescheduling easy 58
nursesched-medium04 29667 29613 54 0 8668 621829 Haroldo Gambini Santos nursescheduling easy 237
academictimetablesmall 28926 28926 0 0 23294 268350 Joshua Friedman easy 0

Reference

@Article{Santos2016,
author="Santos, Haroldo G.
and Toffolo, T{\'u}lio A. M.
and Gomes, Rafael A. M.
and Ribas, Sabir",
title="Integer programming techniques for the nurse rostering problem",
journal="Annals of Operations Research",
year="2016",
volume="239",
number="1",
pages="225--251",
issn="1572-9338",
doi="10.1007/s10479-014-1594-6",
url="http://dx.doi.org/10.1007/s10479-014-1594-6"
}

Last Update Nov 19, 2018 by Gregor Hendel
generated with R Markdown
© 2018 by Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB)
Imprint