Title of article :
Single-allocationorderedmedianhublocationproblems$
Author/Authors :
J. Puerto، نويسنده , , A.B.Ramos ، نويسنده , , A.M.Rodr?´guez-Ch? ، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2011
Abstract :
The discreteorderedmedianlocationmodelisapowerfultoolinmodelingclassicandalternative
locationproblemsthathavebeenappliedwithsuccesstoalargevarietyofdiscretelocationproblems.
Nevertheless,althoughhublocationmodelshavebeenanalyzedfromthesum,maximumandcoverage
point ofviews,asfarasweknow,theyhaveneverbeenconsideredunderanalternativeunifyingpoint
of view.Inthispaperweconsidernewformulations,basedontheorderedmedianobjectivefunction,
for hublocationproblemswithnewdistributionpatternsinducedbythedifferentusers’roleswithin
the supplychainnetwork.Thisapproachintroducessomepenaltyfactorsassociatedwiththeposition
of anallocationcostwithrespecttothesortedsequenceofthesecosts.Firstwepresentbasic
formulationsforthisproblem,andthendevelopstrongerformulationsbyexploitingpropertiesofthe
model.Theperformanceofalltheseformulationsiscomparedbymeansofacomputationalanalysis.
Keywords :
Dynamic programming , Traveling purchaser problem , State space relaxation , Discretized (time-dependent) formulation
Journal title :
Computers and Operations Research
Journal title :
Computers and Operations Research
