{"id":284,"date":"2016-08-22T20:03:14","date_gmt":"2016-08-22T20:03:14","guid":{"rendered":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/?page_id=284"},"modified":"2016-11-09T15:57:50","modified_gmt":"2016-11-09T15:57:50","slug":"sanchez-vila","status":"publish","type":"page","link":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/sanchez-vila\/","title":{"rendered":"Choice-based recommender system"},"content":{"rendered":"<p><strong>Paula Saavedra, Pablo Barreiro, Roi Dur\u00e1n, Rosa Crujeiras,\u00a0Mar\u00eda Loureiro and Eduardo S\u00e1nchez Vila\u00a0<\/strong><\/p>\n<p>Choice-based models are proposed to overcome some of the limitations found in traditional rating-based strategies. The new approach is grounded on decision-making paradigms, such as choice and utility theories. Specifically, random utility models were applied in a recommendation problem. Prediction accuracy was compared with state-of-art rating-based algorithms in a gastronomy dataset. The results show the superior performance of choice-based models, which may suggest that real choices could bring more predictive power than ratings.<\/p>\n<p>Download <a href=\"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-content\/uploads\/Sanchez_etal_RecTour2016.pdf\" target=\"_blank\">presentation slides<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Paula Saavedra, Pablo Barreiro, Roi Dur\u00e1n, Rosa Crujeiras,\u00a0Mar\u00eda Loureiro and Eduardo S\u00e1nchez Vila\u00a0 Choice-based models are proposed to overcome some of the limitations found in traditional rating-based strategies. The new approach is grounded on decision-making paradigms, such as choice and&#8230;<br \/><a class=\"read-more-button\" href=\"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/sanchez-vila\/\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-284","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/pages\/284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/comments?post=284"}],"version-history":[{"count":3,"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/pages\/284\/revisions"}],"predecessor-version":[{"id":387,"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/pages\/284\/revisions\/387"}],"wp:attachment":[{"href":"http:\/\/www.ec.tuwien.ac.at\/rectour2016\/wp-json\/wp\/v2\/media?parent=284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}