{"id":56383,"date":"2018-03-09T22:44:10","date_gmt":"2018-03-09T22:44:10","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/resolucion-de-la-ambiga%c2%bcedad-lexica-mediante-aprendizaje-por-cuantificacion-vectorial\/"},"modified":"2018-03-09T22:44:10","modified_gmt":"2018-03-09T22:44:10","slug":"resolucion-de-la-ambiga%c2%bcedad-lexica-mediante-aprendizaje-por-cuantificacion-vectorial","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/linguistica-computacional\/resolucion-de-la-ambiga%c2%bcedad-lexica-mediante-aprendizaje-por-cuantificacion-vectorial\/","title":{"rendered":"Resoluci\u00f3n de la ambiguedad l\u00e9xica mediante aprendizaje por cuantificaci\u00f3n vectorial"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Manuel Garc\u00eda Vega <\/strong><\/h2>\n<p>La desambiguaci\u00f3n del sentido de las palabras (word sense disambiguation) es el problema de asignar un sentido determinado a una palabra polis\u00e9mica, usando su contexto. Este problema ha sido de inter\u00e9s, pr\u00e1cticamente desde el comienzo de la inform\u00e1tica, en los a\u00f1os 50. La desambiguaci\u00f3n es una tarea intermedia y no un fin en s\u00ed misma. En particular, es muy \u00fatil, a veces imprescindible, para muchos problemas del pln,como por ejemplo la recuperaci\u00f3n de informaci\u00f3n, la categorizaci\u00f3n de textos, la traducci\u00f3n autom\u00e1tica&#8230; el objetivo de esta tesis es implementar un desambiguador del sentido de las palabras basado en el modelo de espacio vectorial optimizando los pesos de los vectores del entrenamiento usando la red neuronal lvq (learning vector quantization) del modelo neuronal supervisado de kohonen y el de proponer un m\u00e9todo uniforme de integraci\u00f3n de recursos que sirvan para el entrenamiento de la red. Los par\u00e1metros de la red lvq han sido optimizados para el problema de la desambiguaci\u00f3n. en este trabajo se ha demostrado que las redes neuronales, concretamente los modelos de kohonen, resuelven brillantemente el problema de la resoluci\u00f3n de la ambig\u00ed\u00bcedad l\u00e9xica, aportando robustez, porque la red lvq es insensible a peque\u00f1os cambios observ\u00e1ndose unos resultados homog\u00e9neos independientemente del entrenamiento; flexibilidad, porque es f\u00e1cilmente aplicable a cualquier tarea de pln; escalabilidad, porque pueden introducirse multitud de textos de entrenamiento para ajustarlo a cualquier dominio y efectividad, porque los resultados obtenidos son comparables y en muchos casos superan a los m\u00e9todos tradicionales utilizados para resolver los mismos problemas. se han integrado el corpus semcor y la base de datos l\u00e9xica wordnet. Adem\u00e1s, se ha aportado un m\u00e9todo de integraci\u00f3n autom\u00e1tica de cualquier corpus. Los experimentos realizados muestran el buen comportamiento de esta red para el problema concreto de la desambiguaci\u00f3n.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Resoluci\u00f3n de la ambiguedad l\u00e9xica mediante aprendizaje por cuantificaci\u00f3n vectorial<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Resoluci\u00f3n de la ambiguedad l\u00e9xica mediante aprendizaje por cuantificaci\u00f3n vectorial <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Manuel Garc\u00eda Vega <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Ja\u00e9n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/12\/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> Ure\u00f1a L\u00f3pez Luis Alfonso<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel Toro bonilla <\/li>\n<li>lidia Moreno boronat (vocal)<\/li>\n<li>Manuel Palomar sanz (vocal)<\/li>\n<li>Juan  Andr\u00e9s Montoyo guijarro (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manuel Garc\u00eda Vega La desambiguaci\u00f3n del sentido de las palabras (word sense disambiguation) es el problema de [&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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