Sparsity Reduction Technique using Grouping Method for Matrix Factorization in Differentially Private Recommendation Systems

Taewhan Kim  Kangsoo Jung  Seog Park  

Publication:   IEICE TRANSACTIONS on Information and Systems
Publicized: 2020/04/01
DOI: 10.1587/transinf.2019EDP7238
Full Text: PDF(1.3MB)