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Mateu i Figueras, Glòria
BarcelĂł i Vidal, Carles |
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Universitat de Girona. Departament d’Informà tica i Matemà tica Aplicada | |
Lee, Bik-wa
Bacon Shone, John |
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The application of Discriminant function analysis (DFA) is not a new idea in the studyof tephrochrology. In this paper, DFA is applied to compositional datasets of twodifferent types of tephras from Mountain Ruapehu in New Zealand and MountainRainier in USA. The canonical variables from the analysis are further investigated witha statistical methodology of change-point problems in order to gain a betterunderstanding of the change in compositional pattern over time. Finally, a special caseof segmented regression has been proposed to model both the time of change and thechange in pattern. This model can be used to estimate the age for the unknown tephrasusing Bayesian statistical calibration Geologische Vereinigung; Institut d’EstadĂstica de Catalunya; International Association for Mathematical Geology; Patronat de l’Escola Politècnica Superior de la Universitat de Girona; FundaciĂł privada: Girona, Universitat i Futur; CĂ tedra LluĂs SantalĂł d’Aplicacions de la MatemĂ tica; Consell Social de la Universitat de Girona; Ministerio de Ciencia i TecnologĂa.cat |
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http://hdl.handle.net/2072/14724 | |
eng | |
Universitat de Girona. Departament d’Informà tica i Matemà tica Aplicada | |
http://hdl.handle.net/10256/707 | |
Calibratge
EstadĂstica bayesiana |
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Application of discriminant function analysis and change-point problem in dating volcanic ashes | |
info:eu-repo/semantics/conferenceObject | |
Recercat |