5 papers
Human Values Matter: Investigating How Misalignment Shapes Collective Behaviors in LLM Agent Communities
Xiangxu Zhang, Jiamin Wang, Qinlin Zhao +6
As LLMs become increasingly integrated into human society, evaluating their orientations on human values from social science has drawn growing attention. Nevertheless, it is still…
Why not Collaborative Filtering in Dual View? Bridging Sparse and Dense Models
Hanze Guo, Jianxun Lian, Xiao Zhou
Collaborative Filtering (CF) remains the cornerstone of modern recommender systems, with dense embedding--based methods dominating current practice. However, these approaches suffe…
Counterfactual Reasoning for Steerable Pluralistic Value Alignment of Large Language Models
Hanze Guo, Jing Yao, Xiao Zhou +2
As large language models (LLMs) become increasingly integrated into applications serving users across diverse cultures, communities and demographics, it is critical to align LLMs w…
SoREX: Towards Self-Explainable Social Recommendation with Relevant Ego-Path Extraction
Hanze Guo, Yijun Ma, Xiao Zhou
Social recommendation has been proven effective in addressing data sparsity in user-item interaction modeling by leveraging social networks. The recent integration of Graph Neural…
Tricolore: Multi-Behavior User Profiling for Enhanced Candidate Generation in Recommender Systems
Xiao Zhou, Zhongxiang Zhao, Hanze Guo
Online platforms aggregate extensive user feedback across diverse behaviors, providing a rich source for enhancing user engagement. Traditional recommender systems, however, typica…