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This work was partially supported by Ministerio de Ciencia e Innovacion of Spain under the project PID2019-106493RB-I00 (DL-CEMG) and the Comunidad de Madrid under Convenio Plurianual with the Universidad Politecnica de Madrid in the actuation line of Programa de Excelencia para el Profesorado Universitario.

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Deep neural aggregation for recommending items to group of users

Publicat a:Applied Soft Computing. 175 113059- - 2025-05-01 175(), DOI: 10.1016/j.asoc.2025.113059

Autors: Duenas-Lerin, Jorge; Lara-Cabrera, Raul; Ortega, Fernando; Bobadilla, Jesus

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Modern society dedicates a significant amount of time to digital interaction, as social life is more and more related to digital life, the information of groups' interaction with the elements of the system is increasing. One key tool for the digital society is Recommender Systems, intelligent systems that learn from our past actions to propose new ones that align with our interests. Some of these systems have specialized in learning from the behavior of user groups to make recommendations to a group of individuals who want to perform a joint task. This research presents an innovative approach to representing group user preferences using deep learning techniques, enhancing recommendations for joint tasks. The proposed aggregation model has been evaluated using two different foundational models, GMF and MLP, four different datasets, and nine group sizes. The experimental results demonstrate the improvement achieved by employing the proposed aggregation model compared to the state-of-the-art, and this aggregation strategy can be applied to upcoming models and architectures.

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