most citedHow Do Recommendation Models Amplify Popularity Bias? An Analysis from the Spectral Perspective

20 citations · 20 across the 5 of their papers we have counts for

collaborators

5 papers

cs.IR2025

MindRec: A Diffusion-driven Coarse-to-Fine Paradigm for Generative Recommendation

Mengyao Gao, Chongming Gao, Haoyan Liu +5

Recent advancements in large language model-based recommendation systems often represent items as text or semantic IDs and generate recommendations in an auto-regressive manner. Ho…

cs.IR2025

Future-Conditioned Recommendations with Multi-Objective Controllable Decision Transformer

Chongming Gao, Kexin Huang, Ziang Fei +6

Securing long-term success is the ultimate aim of recommender systems, demanding strategies capable of foreseeing and shaping the impact of decisions on future user satisfaction. C…

cs.IR2024

Position-aware Graph Transformer for Recommendation

Jiajia Chen, Jiancan Wu, Jiawei Chen +3

Collaborative recommendation fundamentally involves learning high-quality user and item representations from interaction data. Recently, graph convolution networks (GCNs) have adva…

cs.IR2024★ 20 cited

How Do Recommendation Models Amplify Popularity Bias? An Analysis from the Spectral Perspective

Siyi Lin, Chongming Gao, Jiawei Chen +5

Recommendation Systems (RS) are often plagued by popularity bias. When training a recommendation model on a typically long-tailed dataset, the model tends to not only inherit this…

cs.IR2024

EasyRL4Rec: An Easy-to-use Library for Reinforcement Learning Based Recommender Systems

Yuanqing Yu, Chongming Gao, Jiawei Chen +5

Reinforcement Learning (RL)-Based Recommender Systems (RSs) have gained rising attention for their potential to enhance long-term user engagement. However, research in this field f…