A Novel Hybrid Item-Based Similarity Method to Mitigate the Effects of Data Sparsity in Multi-Criteria Collaborative Filtering
Yazarlar (1)
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı IEEE Access (Q2)
Dergi ISSN 2169-3536 Dergi Bilgileri (2025)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili Türkçe Basım Tarihi 01-2025
Kabul Tarihi – Yayınlanma Tarihi 01-01-2025
Cilt / Sayı / Sayfa 13 / 1 / 64660–64686 DOI 10.1109/ACCESS.2025.3559398
Makale Linki https://doi.org/10.1109/access.2025.3559398
UAK Araştırma Alanları
Bilgisayar Bilimleri ve Mühendisliği
Özet
Data sparsity presents a significant challenge for Recommendation Systems, particularly in neighborhood-based approaches that rely on co-ratings to compute similarity. As co-ratings decrease, these methods often struggle to generate accurate recommendations. Addressing the persistent challenge of data sparsity, a novel similarity method, hybrid item-based, for multi-criteria collaborative filtering is proposed in this study. The proposed approach introduces a local similarity measure that combines a modified Jaccard similarity with a distance-based method, enhancing item-to-item similarity calculations. Additionally, it incorporates -divergence as a global similarity measure, leveraging the probability density distribution of ratings to compute similarities even when user overlap is minimal or absent. This dual approach allows our method to produce reliable similarity measures in sparse data environments. The …
Anahtar Kelimeler
Collaborative filtering | item-based | multi-criteria | probability density distribution | similarity measure | sparsity