Retracted Article Sidebar Published: Jan 4, 2026 DOI: https://doi.org/10.12732/ijam.v39i1s.1622 Keywords: Attribute-based recommendation, Rank-level learning, Cold-start problem, Interpretability, Matrix factorization, Sparse data. Main Article Content Retracted Abstract Retracted Article Details Issue Vol. 39 No. 1s (2026) Section Articles