ProtoCF: Prototypical Collaborative Filtering for Few-shot Recommendation
Aravind Sankar, Junting Wang, Adit Krishnan, Hari Sundaram · 2021
In recent times, deep learning methods have supplanted conventional collaborative filtering approaches as the backbone of modern recommender systems. However, their gains are skewed towards popular items with a drastic performance drop for the vast collection of long-tail items with sparse interactions. Moreover, we empirically show that prior neural recommenders lack the resolution power to accurately rank relevant items within the long-tail.