Property-based collaborative filtering for health-aware recommender systems

• Published in: Expert systems with applications Vol. 39; no. 8; pp. 7451 - 7457
• Main Authors: López-Nores, Martín, Blanco-Fernández, Yolanda, Pazos-Arias, José J., Gil-Solla, Alberto
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.06.2012
• Subjects: Collaborative filtering; Consumers; Distance education; Electronic health records; Expert systems; Filtering; Filtration; Health; Recommender systems; Semantics; Strategy; Television; Collaborative filtering; Semantics; Electronic health records; Recommender systems
• ISSN: 0957-4174; 1873-6793
• DOI: 10.1016/j.eswa.2012.01.112

► A recommendation strategy driven by the semantic properties of items and users. ► Clustering items as per their potential appeal to users who match certain features. ► Solves persistent problems of sparsity, latency and gray sheep. ► Benefits especially apparent among people with specific health concerns. Recommender systems aim at solving the problem of information overload by selecting items (commercial products, educational assets, TV programs, etc.) that match the consumers’ interests and preferences. Recently, there have been approaches to drive the recommendations by the information stored in electronic health records, for which the traditional strategies applied in online shopping, e-learning, entertainment and other areas have several pitfalls. This paper addresses those problems by introducing a new filtering strategy, centered on the properties that characterize the items and the users. Preliminary experiments with real users have proved that this approach outperforms previous ones in terms of consumers’ satisfaction with the recommended items. The benefits are especially apparent among people with specific health concerns.