2 papers
cs.IR2026
Mosaic: A Fleet of User Embedding Specialists for Recommendation at Meta
John Zhiyuan Zheng, Xian Sun, Xiangyang Mou +6
User representation is one of the highest-leverage modeling problems in industrial recommendation systems: a single advancement in how users are encoded can propagate across retrie…
cs.LG2026
Beyond Accuracy: Measuring Bias Acknowledgment in Chain-of-Thought Reasoning for Responsible AI Evaluation
Xian Sun, Wei Gao, Yingshuo Wang +9
Reasoning models are increasingly used in settings where the final answer is not the only object of review: educational tools may show students intermediate steps, decision-support…