Zihao Zhao

Popularity Bias is not Always Evil: Disentangling Benign and Harmful Bias for Recommendation

2022 · IEEE Transactions on Knowledge and Data Engineering

Recommender system usually suffers from severepopularity bias— the collected interaction data usually exhibits quite imbalanced or even long-tailed distribution over items. Such skewed distribution may result from the users’conformityto the group, which deviates from reflecting …

Real-positive-neighbors guide Contrastive Graph Clustering Network

2025

The rapid advancement of deep learning has introduced promising techniques for attribute graph clustering. However, existing deep attributed graph clustering methods face two key limitations: (1) insufficient exploration of multi-scale neighborhood structural information during training, …