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dc.contributor.authorJoshi, Shirishen_US
dc.date.accessioned2014-03-14T21:14:18Z
dc.date.available2014-03-14T21:14:18Z
dc.date.issued1993-05-07en_US
dc.identifier.otheretd-06062008-170545en_US
dc.identifier.urihttp://hdl.handle.net/10919/38416
dc.description.abstractWhile attempting to solve optimization problems, the lack of an explicit mathematical expression of the problem may preclude the application of the standard methods of optimization which prove valuable in an analytical framework. In such situations, computer simulations are used to obtain the mean response values for the required settings of the independent variables. Procedures for optimizing on the mean response values, which are in turn obtained through computer simulation experiments, are called simulation-optimization techniques.

The focus of this work is on the simulation-optimization technique of response surface methodology (RSM). RSM is a collection of mathematical and statistical techniques for experimental optimization. Correlation induction strategies can be employed in RSM to achieve improved statistical inferences on experimental designs and sequential experimentations. Also, the search procedures currently employed by RSM algorithms can be improved by incorporating gradient deflection methods.

This dissertation has three major goals: (a) develop analytical results to quantitatively express the gains of using the common random number (CRN) strategy of variance reduction over direct simulation (independent streams or IS strategy) at each stage RSM, (b) develop a new RSM algorithm by incorporating gradient deflection methods in existing RSM algorithms, and (c) to conduct extensive empirical studies to quantify: (i) the use of eRN strategy over direct simulation in a standard RSM algorithm, and (ii) the gains of the new RSM algorithm over a standard existing RSM algorithm.

en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V856_1993.J678.pdfen_US
dc.subjectMathematical optimizationen_US
dc.subject.lccLD5655.V856 1993.J678en_US
dc.titleSimulation-optimization studies :under efficient stimulationstrategies, and a novel response surface methodology algorithmen_US
dc.typeDissertationen_US
dc.contributor.departmentIndustrial and Systems Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineIndustrial and Systems Engineeringen_US
dc.contributor.committeechairTew, Jeffrey D.en_US
dc.contributor.committeememberHouck, Ernest C.en_US
dc.contributor.committeememberKoelling, Charles Patricken_US
dc.contributor.committeememberSchmidt, Joseph W.en_US
dc.contributor.committeememberSherali, Hanif D.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06062008-170545/en_US
dc.date.sdate2008-06-06en_US
dc.date.rdate2008-06-06
dc.date.adate2008-06-06en_US


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