{"id":54478,"date":"2006-08-09T00:00:00","date_gmt":"2006-08-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-de-datos-multivariantes-incompletos-aproximacion-parametrica-al-problema-de-los-ceros-composicionales\/"},"modified":"2006-08-09T00:00:00","modified_gmt":"2006-08-09T00:00:00","slug":"analisis-de-datos-multivariantes-incompletos-aproximacion-parametrica-al-problema-de-los-ceros-composicionales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/analisis-de-datos-multivariantes-incompletos-aproximacion-parametrica-al-problema-de-los-ceros-composicionales\/","title":{"rendered":"An\u00e1lisis de datos multivariantes incompletos. aproximaci\u00f3n param\u00e9trica al problema de los ceros composicionales"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Javier Palarea Albaladejo <\/strong><\/h2>\n<p>La mayor\u00eda de problemas de an\u00e1lisis de datos conllevan la estimaci\u00f3n de los par\u00e1metros desconocidos de un modelo probabil\u00edstico a partir de la observaci\u00f3n de variables que representan las caracter\u00edsticas medidas por el investigador para distintos casos. Por diversas razones, es habitual en la pr\u00e1ctica que algunos vectores de caracter\u00edsticas se observen de forma parcial o incompleta. El problema que se plantea entonces es c\u00f3mo realizar la inferencia bas\u00e1ndose en informaci\u00f3n parcialmente observada. considerando un contexto multivariante con variables continuas y con un patr\u00f3n de no respuesta arbitrario, en este trabajo de investigaci\u00f3n se estudian las principales alternativas, tanto heur\u00edsticas como aquellas apoyadas en modelos, para abordar el an\u00e1lisis de datos incompletos, destacando el papel relevante que en este \u00e1mbito juegan los m\u00e9todos de monte carlo basados en cadenas de markov (algoritmos mcmc).  La parte final se centra en una clase especial de datos incompletos que surge en el an\u00e1lisis de datos de tipo composicional mediante la metodolog\u00eda log-cociente: los ceros por redondeo. el cap\u00edtulo 1 sirve como introducci\u00f3n al an\u00e1lisis de datos multidimensionales incompletos y establece el marco te\u00f3rico. El cap\u00edtulo 2 se ocupa de los algoritmos mcmc y en \u00e9l se fundamentan y desarrollan los dos esquemas mcmc b\u00e1sicos: el algoritmo de metropolis-hastings y el muestreador de gibbs; al tiempo que se presentan algunos de los recientes avances en este campo. En el cap\u00edtulo 3 se estudian en profundidad los m\u00e9todos param\u00e9tricos basados en verosimilitudes: el algoritmo em y el m\u00e9todo de imputaci\u00f3n m\u00faltiple. Con el objetivo de evaluar el rendimiento de las diferentes estrategias analizadas bajo distintas hip\u00f3tesis, se dise\u00f1a y ejecuta un experimento de simulaci\u00f3n que pone de manifiesto la conveniencia de emplear m\u00e9todos param\u00e9tricos basados en verosimilitudes. por \u00faltimo, el cap\u00edtulo 4 de esta memoria se dedica al an\u00e1lisis de datos com<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis de datos multivariantes incompletos. aproximaci\u00f3n param\u00e9trica al problema de los ceros composicionales<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis de datos multivariantes incompletos. aproximaci\u00f3n param\u00e9trica al problema de los ceros composicionales <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Javier Palarea Albaladejo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Murcia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 08\/09\/2006<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Juan G\u00f3mez Garc\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: rafael Herrerias pleguezuelo <\/li>\n<li>carles Barcel\u00f3 vidal (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Ruiz gomez (vocal)<\/li>\n<li>\u00farsula Faura mart\u00ednez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Javier Palarea Albaladejo La mayor\u00eda de problemas de an\u00e1lisis de datos conllevan la estimaci\u00f3n de los par\u00e1metros [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[2207,3148,1477,126,8235],"tags":[120344,120343,24949,25142,6972,120345],"class_list":["post-54478","post","type-post","status-publish","format-standard","hentry","category-analisis-de-datos","category-analisis-multivariante","category-estadistica","category-matematicas","category-murcia","tag-carles-barcelo-vidal","tag-javier-palarea-albaladejo","tag-jose-maria-ruiz-gomez","tag-juan-gomez-garcia","tag-rafael-herrerias-pleguezuelo","tag-ursula-faura-Martinez"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/54478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=54478"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/54478\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=54478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=54478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=54478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}