Author(s): Dias, Pedro Ricardo Gomes
Date: 2011
Persistent ID: http://hdl.handle.net/10362/6581
Origin: Repositório Institucional da UNL
Subject(s): Recommender systems; Collaborative filtering; Matrix factorization; Groupbased recommendations; Interactive TV
Dissertação para obtenção do Grau de Mestre em Engenharia Informática
Information is nowadays made available and consumed faster than ever before. This information technology generation has access to a tremendous deal of data and is left with the heavy burden of choosing what is relevant. With the increasing growth of media sources, the amount of content made available to users has become overwhelming and in need to be managed. Recommender systems emerged with the purpose of providing personalized and meaningful content recommendations based on users’ preferences and usage history. Due to their utility and commercial potential, recommender systems integrate many audiovisual content providers and represent one of their most important and valuable services. The goal of this thesis is to develop a recommender system based on matrix factorization methods, capable of providing meaningful and personalized product recommendations to individual users and groups of users, by taking into account users’ rating patterns and biased tendencies, as well as their fluctuations throughout time.
