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Hong Zheng

3 accepted papers

2025

Decoupling Metacognition from Cognition: A Framework for Quantifying Metacognitive Ability in LLMs

AAAI 2025technical

Large Language Models (LLMs) are known to hallucinate facts and make non-factual statements which can undermine trust in their output. The essence of hallucination lies in the absence of metacognition in LLMs, namely the understanding of their own cognitive processes. However, there has been limited…

2025

Disentangled Modeling of Preferences and Social Influence for Group Recommendation

AAAI 2025technical

The group recommendation (GR) aims to suggest items for a group of users in social networks. Existing work typically considers individual preferences as the sole factor in aggregating group preferences. Actually, social influence is also an important factor in modeling users' contributions to the fi…