The K-in-a-row design as a semi-Markov process

dc.contributor.authorFlournoy, Nancy
dc.contributor.authorOron, Assaf
dc.contributor.authorMoler Cuiral, José Antonio
dc.contributor.authorSada Allo, Maider
dc.contributor.departmentEstadística, Informática y Matemáticases_ES
dc.contributor.departmentEstatistika, Informatika eta Matematikaeu
dc.date.accessioned2025-06-10T09:00:34Z
dc.date.available2025-06-10T09:00:34Z
dc.date.issued2025
dc.description.abstractEstimating the value of a stimulus variable that has a prespecified percentage of successes is common in many fields, and known generally as “dose-finding”. In most practical applications, only a few values of the stimuli can be applied to the statistical units that participate in the experiment. K-in-a-Row Up-and-Down is a popular experimental procedure that sequentially allocates statistical units to the permissible values of a stimulus variable, using simple invariant rules. Despite having been in use for 60 years, K-in-a-Row’s statistical properties are still not broadly understood. We show that it is naturally modeled by a semi-Markov process, and as far as we know it is the first stochastic design to appear as such. The stationary distribution is characterized assuming only that the success probability increases with the values of the stimuli. We prove the strong unimodality of the asymptotic distribution of the proportions of stimuli specific allocations. Thus the mode of the stimuli-specific allocation serves as a summary measure of location for these designs, and we explicitly identify it. We also show how design parameters can be chosen to locate the stationary distribution over the percentile of interest. en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationFlournoy, N., Moler, J.A., Oron, A. y Sada, M. (2025). The K-in-a-Row Design as a Semi-Markov Process [Preprint]. Academica-e. https://academica-e.unavarra.es/handle/2454/54214
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/54214
dc.language.isoeng
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.subjectUp-and-down designsen
dc.subjectDose-finding designsen
dc.subjectMarkov chainsen
dc.subjectSemi-Markov processesen
dc.titleThe K-in-a-row design as a semi-Markov processen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/submittedVersion
dspace.entity.typePublication
relation.isAuthorOfPublicationec10e36c-8a72-4ba6-b481-289a596f1c4a
relation.isAuthorOfPublicationbc371364-3fe8-4e9f-b1dd-f5066f3db37f
relation.isAuthorOfPublication.latestForDiscoveryec10e36c-8a72-4ba6-b481-289a596f1c4a

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