RecSys 2021 - Papers and Talks to Chew on

Eugene Yan · 4 years ago

RecSys 2021 conference (September 27 - October 1) featured several papers on recommendation systems, including work on higher-order interactions for collaborative filtering, comparisons between matrix factorization and neural approaches, serverless deployment patterns, and transformer-based sequential recommendation models. Key findings included that simple linear models with higher-order interactions matched deep learning baselines on datasets like MovieLens-20M, matrix factorization outperformed neural collaborative filtering on accuracy metrics, and that focusing on data quality and managed cloud services improved deployment efficiency. The research advances practical methods for building, operating, and improving recommendation systems at scale.