2 papers
cs.IR2026
Post-hoc Popularity Bias Correction in GNN-based Collaborative Filtering
Md Aminul Islam, Elena Zheleva, Ren Wang
User historical interaction data is the primary signal for learning user preferences in collaborative filtering (CF). However, the training data often exhibits a long-tailed distri…
cs.IR2026
A Control Function Framework for Mitigating Position Bias in Learning to Rank Systems
Md Aminul Islam, Kathryn Vasilaky, Elena Zheleva
Learning-to-rank (LTR) systems commonly depend on implicit feedback, such as user clicks, because it is easy to collect and can serve as a valuable signal of user preferences. Howe…