{"type":"ScholarlyArticle","title":"A Case-Based Solution to the Cold-Start Problem in Group Recommenders","authors":[{"name":"Lara Quijano Sánchez","slug":"lara-quijano-sanchez","given":"Lara Quijano","family":"Sánchez","affiliation":""},{"name":"Derek G. Bridge","slug":"derek-g-bridge","given":"Derek G.","family":"Bridge","affiliation":""},{"name":"Belén Díaz-Agudo","slug":"belen-diaz-agudo","given":"Belén","family":"Díaz-Agudo","affiliation":""},{"name":"Juan Antonio Recio-García","slug":"juan-antonio-recio-garcia","given":"Juan Antonio","family":"Recio-García","affiliation":""}],"abstract":"In this paper we offer a potential solution to the cold-start problem in group recommender systems. To do so, we use information about previous group recommendation events and copy ratings from a user who played a similar role in some previous group event. We show that copying in this way, i.e. conditioned on groups, is superior to copying nothing and also superior to copying ratings from the most similar user known to the system.","doi":null,"url":"https://ijcai.org/proceedings/2013/453","pdf":"https://ijcai.org/proceedings/2013/0453.pdf","markdown":"https://ijcai.org/proceedings/2013/453.md","bibtex":"https://ijcai.org/proceedings/2013/bibtex/453","volume":{"slug":"2013","title":"Proceedings of the Twenty-Third International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2013","url":"https://ijcai.org/proceedings/2013/","year":2013,"location":"Beijing, China","dates":"3–9 August 2013","editors":"Francesca Rossi","isbn":"978-1-57735-633-2","publisher":"AAAI Press / International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":null,"track":"","number":453,"pages":{"first":3042,"last":3045},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}