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Understanding color trends by means of non-monotone utility functions Ghaderi, Mohammad Ruiz Vegas, Francisco Javier Agell Jané, Núria Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial Universitat Politècnica de Catalunya. GREC - Grup de Recerca en Enginyeria del Coneixement Àrees temàtiques de la UPC::Matemàtiques i estadística::Estadística matemàtica::Mètodes estadístics Multiple criteria decision making Multi-Criteria Decision Analysis Disaggregation preference method Non-monotonic utility function Color trends Decisió multicriteri, Presa de In this paper we explore the possibility of capturing color trends and understanding the rationale behind the popularity of a color. To this end, we propose using a preference disaggregation approach from the field of Multi-Criteria Decision Analysis. The main objective is to identify the criteria aggregation model that underlies the global preference of a color. We introduce a new disaggregation method based on the well-known UTASTAR algorithm able to represent preferences by means of non-monotonic utility functions. The method is applied to a large database of ranked colors, from three different years, based on the information published on the webpage of an international creative community. Non-monotone marginal utility functions from each of the coordinates are obtained for each year. These functions contain the color preference information captured, in an understandable way. Peer Reviewed Postprint (author’s final draft) 2014 Conference report Ghaderi, M.; Ruiz, F.; Agell, N. Understanding color trends by means of non-monotone utility functions. A: Congrés Internacional de l’Associació Catalana d’Intel·ligència Artificial. "Artificial Intelligence Research and Development - Proceedings of the 17th International Conference of the Catalan Association for Artificial Intelligence : Volume: 269 of Frontiers in Artificial Intelligence and Applications". Barcelona: 2014, p. 107-115. 978-161499451-0 https://hdl.handle.net/2117/27464 10.3233/978-1-61499-452-7-87 eng http://ebooks.iospress.nl/volumearticle/38055 Open Access 9 p. application/pdf