{"id":42947,"date":"2018-03-09T09:45:07","date_gmt":"2018-03-09T09:45:07","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estimacion-de-gramaticas-incontextuales-probabila%c2%adsticas-y-su-aplicacion-en-modelizacion-del-lenguaje\/"},"modified":"2018-03-09T09:45:07","modified_gmt":"2018-03-09T09:45:07","slug":"estimacion-de-gramaticas-incontextuales-probabila%c2%adsticas-y-su-aplicacion-en-modelizacion-del-lenguaje","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/estimacion-de-gramaticas-incontextuales-probabila%c2%adsticas-y-su-aplicacion-en-modelizacion-del-lenguaje\/","title":{"rendered":"Estimaci\u00f3n de gram\u00e1ticas incontextuales probabil\u00edsticas y su aplicaci\u00f3n en modelizaci\u00f3n del lenguaje."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Joan Andreu S\u00e1nchez Peir\u00f3 <\/strong><\/h2>\n<p>En esta tesis se estudian las gram\u00e1ticas incontextuales probabil\u00edsticas y su aplicaci\u00f3n en problemas de modelizaci\u00f3n del lenguaje. Dos son los grandes problemas que se va a considerar en este tipo de modelos: el aprendizaje de las funciones de probabilidad asociadas a las reglas, y su integraci\u00f3n como modelo de interpretaci\u00f3n en tareas complejas de modelizaci\u00f3n del lenguaje.  en primero de los problemas que se estudia es la estimaci\u00f3n de las funciones de probabilidad asociadas a las reglas.Se presentan y estudian dos de los algoritmos cl\u00e1sicos de estimaci\u00f3n de las gip, el algoritmo inside-outside y el algoritmo basado en las cuentas de viterbi.  despu\u00e9s se proponen nuevos algoritmos de estimaci\u00f3n en los cuales se utiliza un subconjunto espec\u00edfico de derivaciones e cada cadena. Finalmente,los algoritmos propuestos se aplican al conjunto de datos del penn treebank para ilustrar su comportamiento en la pr\u00e1ctica.  por \u00fatlimo se aborda el problema de la interpretaci\u00f3n e integraci\u00f3n de las gram\u00e1ticas incontextuales probabil\u00edsticas en problemas de modelizaci\u00f3n del lenguaje. A continuaci\u00f3n se hace una propuesta de integraci\u00f3n que combina modelos de $n$-gramas a nivel de palabras con una gram\u00e1tica incontextual probabil\u00edstica a nivel de categor\u00edas l\u00e9xicas.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estimaci\u00f3n de gram\u00e1ticas incontextuales probabil\u00edsticas y su aplicaci\u00f3n en modelizaci\u00f3n del lenguaje.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estimaci\u00f3n de gram\u00e1ticas incontextuales probabil\u00edsticas y su aplicaci\u00f3n en modelizaci\u00f3n del lenguaje. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Joan Andreu S\u00e1nchez Peir\u00f3 <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/05\/1999<\/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>Jos\u00e9 Miguel Bened\u00ed Ruiz<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Casacuberta nolla <\/li>\n<li>Rafael Carrasco jim\u00e9nez (vocal)<\/li>\n<li>pierre Dupont (vocal)<\/li>\n<li>Antonio Castellanos l\u00f3pez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Joan Andreu S\u00e1nchez Peir\u00f3 En esta tesis se estudian las gram\u00e1ticas incontextuales probabil\u00edsticas y su aplicaci\u00f3n en [&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 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