{"id":87559,"date":"2018-03-10T00:12:21","date_gmt":"2018-03-10T00:12:21","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/etiquetado-lexico-y-analisis-sintactico-superficial-basado-en-modelos-estada%c2%adsticos\/"},"modified":"2018-03-10T00:12:21","modified_gmt":"2018-03-10T00:12:21","slug":"etiquetado-lexico-y-analisis-sintactico-superficial-basado-en-modelos-estada%c2%adsticos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/linguistica\/etiquetado-lexico-y-analisis-sintactico-superficial-basado-en-modelos-estada%c2%adsticos\/","title":{"rendered":"Etiquetado l\u00e9xico y an\u00e1lisis sint\u00e1ctico superficial basado en modelos estad\u00edsticos."},"content":{"rendered":"

Tesis doctoral de Ferr\u00e1n Pla Santamar\u00eda <\/strong><\/h2>\n

En esta tesis se abordan dos problemas que simplifican substancialmente la tarea de procesamiento de oraciones escritas en lenguaje natural: la desambiguaci\u00f3n l\u00e9xica y el an\u00e1lisis sint\u00e1ctico superficial de textos no restringidos. se ha desarrollado un sistema de desambiguaci\u00f3n que es capaz de obtener de manera conjunta o separada, el etiquetado l\u00e9xico (pos tagging) –o proceso mediante el cual se elige la categor\u00eda l\u00e9xica correcta para las palabras de una frase– y el an\u00e1lisis sint\u00e1ctico superficial (shallow parsing o chunking) –consistente en la detecci\u00f3n de ciertos grupos no solapados de palabras relacionadas sint\u00e1cticamente como, sintagmas nominales (sn), verbales (sv), preposicionales (sp), …–, Para textos no restringidos. la aproximaci\u00f3n propuesta se basa en modelos de lenguaje (ml) obtenidos autom\u00e1ticamente a partir de corpora etiquetados con informaci\u00f3n ling\u00ed\u00bcistica.Para ello, se utilizan t\u00e9cnicas de aprendizaje autom\u00e1tico derivadas del campo de la inferencia gramatical y de los modelos estad\u00edsticos. Los modelos inferidos de representan utilizando un formalismo homog\u00e9neo: m\u00e1quimas de estados finitos. \u00e9Stos incluyen desde modelos de n-gramas, hasta cualquier modelo regular estoc\u00e1stico aprendido por medio de t\u00e9cncias de indiferencia gramatical obtendio mediante cualquier otro m\u00e9todo. Para estos \u00faltimos se introducen nuevos m\u00e9todos de suavizado para ampliar la cobertura del lenguaje. Adem\u00e1s, el sistema ha sido ampliado para enriquecer los ml con informaci\u00f3n de las palabras, adem\u00e1s de las categor\u00edas l\u00e9xicas, mediante lo que hemos denominado modelos contextuales especializados o lexicalizados. \u00e9stos permiten reflejar dependencias l\u00e9xico-contextuales, que en muchos casos, ayudan de manera notable a resolver ciertas ambig\u00ed\u00bcedades estructurales. el sistema propuesto se ha evaluado experimentalmente sobre diferentes corpora en ingl\u00e9s (wall street journal) y en castellano (lexesp, bdgeo), establec<\/p>\n

 <\/p>\n

Datos acad\u00e9micos de la tesis doctoral \u00abEtiquetado l\u00e9xico y an\u00e1lisis sint\u00e1ctico superficial basado en modelos estad\u00edsticos.<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Etiquetado l\u00e9xico y an\u00e1lisis sint\u00e1ctico superficial basado en modelos estad\u00edsticos. <\/li>\n
  • Autor:<\/strong>\u00a0 Ferr\u00e1n Pla Santamar\u00eda <\/li>\n
  • Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 27\/11\/2000<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • Natividad Prieto S\u00e1ez<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: enrique Vidal ruiz <\/li>\n
        • horacio Horacio rodr\u00edguez (vocal)<\/li>\n
        • i\u00f1aki Alegria loinaz (vocal)<\/li>\n
        • llu\u00eds M\u00e1rquez villodre (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Ferr\u00e1n Pla Santamar\u00eda En esta tesis se abordan dos problemas que simplifican substancialmente la tarea de procesamiento […]<\/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":[6314,1890,59,60,2302,126,16820],"tags":[17029,55069,183207,27998,63935,31355],"class_list":["post-87559","post","type-post","status-publish","format-standard","hentry","category-bases-de-datos","category-ciencia-de-los-ordenadores","category-linguistica","category-linguistica-aplicada","category-linguistica-computacional","category-matematicas","category-politecnica-de-valencia","tag-enrique-vidal-ruiz","tag-ferran-pla-santamaria","tag-horacio-horacio-rodriguez","tag-inaki-alegria-loinaz","tag-lluis-marquez-villodre","tag-natividad-prieto-saez"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/87559","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=87559"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/87559\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=87559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=87559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=87559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}