Continual collaborative filtering through gradient alignment

• Main Authors: DO, Dinh Hieu, LAUW, Hady Wirawan
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2023
• Subjects: collaborative filtering; continual learning; gradient alignment; recommendation systems; Databases and Information Systems; Numerical Analysis and Scientific Computing
• Online Access: https://ink.library.smu.edu.sg/sis_research/8269; https://ink.library.smu.edu.sg/context/sis_research/article/9272/viewcontent/ContinualCollabFilter_GA_recsys23_av.pdf
• Institution: Singapore Management University

A recommender system operates in a dynamic environment where new items emerge and new users join the system, resulting in ever-growing user-item interactions over time. Existing works either assume a model trained offline on a static dataset (requiring periodic re-training with ever larger datasets)...