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PMD: An Optimal Transportation-Based User Distance for Recommender Systems

Collaborative filtering predicts a user’s preferences by aggregating ratings from similar users and thus the user similarity (or distance) measure is key to good performance. Existing similarity measures either consider only the co-rated items for a pair of users (but co-rated items are rare in real...

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Detalles Bibliográficos
Autores principales: Meng, Yitong, Dai, Xinyan, Yan, Xiao, Cheng, James, Liu, Weiwen, Guo, Jun, Liao, Benben, Chen, Guangyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7148039/
http://dx.doi.org/10.1007/978-3-030-45442-5_34