{"id":70412,"date":"2018-03-09T23:14:55","date_gmt":"2018-03-09T23:14:55","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/represetacion-de-asociaciones-mediante-mds-y-su-tratamiento-computacional\/"},"modified":"2018-03-09T23:14:55","modified_gmt":"2018-03-09T23:14:55","slug":"represetacion-de-asociaciones-mediante-mds-y-su-tratamiento-computacional","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/represetacion-de-asociaciones-mediante-mds-y-su-tratamiento-computacional\/","title":{"rendered":"Represetaci\u00f3n de asociaciones mediante mds y su tratamiento computacional."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Alex Murillo Fern\u00e1ndez <\/strong><\/h2>\n<p>Dado un conjunto de est\u00edmulos y una matriz sim\u00e9trica de disimilaridades entre ellos, unidimensional scaling trata el problema de la representaci\u00f3n mediantes puntos en un cont\u00ednuo. El hecho aparentemente m\u00e1s simple de que en general y para cualquier m\u00e9trica de minkowski, la distancia entre dos objetos en este contexto sea la desviaci\u00f3n absoluta entre ellos sobre el \u00fanico  eje considerado, crea un serio problema computacional cuando se trata de minimizar la funci\u00f3n de p\u00e9rdida. En este trabajo, se presenta un algoritmo que utiliza simulated annealing en una nueva forma, mediante una estrategia basada en un proceso alternante ponderado que usa permutaciones y traslaciones para localizar el \u00f3ptimo de la configuraci\u00f3n, para m\u00ednimos cuadrados, desviaciones absolutas o cualquier otra funci\u00f3n de p\u00e9rdida.  adem\u00e1s, el algoritmo es extendido para tratar el problema de multidimensional scaling, de forma que, tanto para la distancia como para la funci\u00f3n de p\u00e9rdida pueden ser empleadas cualquier m\u00e9trica de minkowski. La utilizaci\u00f3n de un algoritmo alternante basdo en permutaciones y traslaciones basado en sa se revela como la estrtegia m\u00e1s recomendable para tema\u00f1os de matrices medianos y grandes.  finalmente, es conocida la estrecha relaci\u00f3n entre las t\u00e9cnicas de an\u00e1lisis cluster y multidimensional scaling, habiendo sido utilizadas de forma complementaria en la literatura. No obstante, la clasificaci\u00f3n es \u00f3ptima en el espacio global mientras que mds ofrece una representaci\u00f3n \u00f3ptima en el espacio reducido. En este trabajo  se presenta un modelo que mediante simulated annealing, permite simult\u00e1neamente efectuar clasificaci\u00f3n y mds.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Represetaci\u00f3n de asociaciones mediante mds y su tratamiento computacional.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Represetaci\u00f3n de asociaciones mediante mds y su tratamiento computacional. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Alex Murillo Fern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 28\/09\/2004<\/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> Vera Vera Jos\u00e9 Fernando<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: ram\u00f3n Guti\u00e9rrez Jaimez <\/li>\n<li>carles m Cuadras avellana (vocal)<\/li>\n<li>armando Mateus ferreira (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Caridad  y ocerin (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alex Murillo Fern\u00e1ndez Dado un conjunto de est\u00edmulos y una matriz sim\u00e9trica de disimilaridades entre ellos, unidimensional [&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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