Recommender systems may enhance the discovery of novelties

Autor: Giordano De Marzo, Pietro Gravino, Vittorio Loreto
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Physics: Complexity, Vol 5, Iss 4, p 045008 (2024)
Druh dokumentu: article
ISSN: 2632-072X
DOI: 10.1088/2632-072X/ad9cdd
Popis: Recommender systems are vital for shaping user online experiences. While some believe they may limit new content exploration and promote opinion polarization, a systematic analysis is still lacking. In this paper we present a model that explores the influence of recommender systems on novel content discovery. Surprisingly, analytical and numerical findings reveal that these techniques can enhance novelty discovery rates. Also, distinct algorithms with similar discovery rates yield different outcomes, with the matrix factorization algorithm producing opinion polarization. Our approach shed light on the interplay between algorithmic recommendations and novelties discovery, offering a framework to enhance recommendation techniques beyond accuracy metrics.
Databáze: Directory of Open Access Journals