Finite perturbation analysis methods for optimization of periodic (s, S) inventory control systems

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buir.advisorGökbayrak, Kağan
dc.contributor.authorMert, Erdinç
dc.date.accessioned2016-01-08T18:05:27Z
dc.date.available2016-01-08T18:05:27Z
dc.date.issued2008
dc.departmentDepartment of Industrial Engineeringen_US
dc.descriptionAnkara : The Deaprtment of Industrial Engineering and the Institute of Engineering and Science of Bilkent University, 2008.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 2008.en_US
dc.descriptionIncludes bibliographical references leaves 52-54.en_US
dc.description.abstractWe are dealing with single item inventory systems where the period time is constant and the unsatisfied demands are backordered. The demands are independent and identically distributed random variables, but the distribution of those variables are not known. The total cost of a period consists of; ordering cost "K" which is independent of the ordering quantity, holding cost "h" for each item that remains in stock, and penalty cost "p" for the each backordered item. In the considered system, it is known that when the parameters of an (s,S) inventory policy are chosen appropriate, then the expected period cost can be minimized. There are some exact methods or heuristics for finding the optimal s and S parameters in the literature for the case where the demand distribution is known. In our study, we introduce a perturbation analysis based method for finding the optimal s and S parameters where the demand distribution is not known. Our method anticipates the sensitivity of (s,S) parameters to the period cost for the observed demand quantities. This method's performance is compared with a method that uses Integer Programming with the past data and with a method that calculates the mean and standard variation values with the past data and feeds them to the Ehrhardt's Heuristic.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityMert, Erdinçen_US
dc.format.extentxi, 113 leaves, graphsen_US
dc.identifier.urihttp://hdl.handle.net/11693/14700
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectInventory Policiesen_US
dc.subjectSimulationen_US
dc.subjectPerturbation Analysisen_US
dc.subject.lccTS160 .M47 2008en_US
dc.subject.lcshInventory control--Mathematical models.en_US
dc.subject.lcshInventory policy--Mathematical models.en_US
dc.subject.lcshPerturbation (Mathematics)en_US
dc.titleFinite perturbation analysis methods for optimization of periodic (s, S) inventory control systemsen_US
dc.typeThesisen_US

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