Title: ERASP – a system for enhancing recommendations using answer-set programming

Authors: Manoela Ilic, Joao Leite, Martin Slota

Addresses: CENTRIA and Departamento de Informatica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal. ' CENTRIA and Departamento de Informatica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal. ' CENTRIA and Departamento de Informatica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal

Abstract: User modelling and personalisation are the key aspects of recommender systems in terms of recommendation quality. While being very efficient and designed to work with huge amounts of data, present recommender systems often lack the facility of user integration when it comes to feedback and direct user modelling. We propose the introduction of dynamic logic programming – an extension of answer set programming – in recommender systems, as a means for users to specify and update their models with the purpose of enhancing recommendations.

Keywords: dynamic logic programming; DLP; answer-set programming; ASP; user modelling; recommender systems; personalisation; reasoning-based intelligent systems; recommendation quality.

DOI: 10.1504/IJRIS.2009.028014

International Journal of Reasoning-based Intelligent Systems, 2009 Vol.1 No.3/4, pp.147 - 163

Published online: 27 Aug 2009 *

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