Wei Xu
Other people with similar names: Wei Xu
Unverified author pages with similar names: Wei Xu
2026
DebateQA: Evaluating Question Answering on Debatable Knowledge
Rongwu Xu | Xuan Qi | Zehan Qi | Wei Xu | Zhijiang Guo
Findings of the Association for Computational Linguistics: EACL 2026
Rongwu Xu | Xuan Qi | Zehan Qi | Wei Xu | Zhijiang Guo
Findings of the Association for Computational Linguistics: EACL 2026
The rise of large language models (LLMs) has enabled us to seek answers to inherently debatable questions on LLM chatbots, necessitating a reliable way to evaluate their ability. However, traditional QA benchmarks assume fixed answers are inadequate for this purpose. To address this, we introduce DebateQA, a dataset of 2,941 debatable questions, each accompanied by multiple human-annotated partial answers that capture a variety of perspectives. We develop two metrics: Perspective Diversity, which evaluates the comprehensiveness of perspectives, and Dispute Awareness, which assesses if the LLM acknowledges the question’s debatable nature. Experiments demonstrate that both metrics are aligned with human preferences and stable across different underlying models. Using DebateQA with two metrics, we assess 12 prevalent LLMs and retrieval-augmented generation methods. Our findings reveal that while LLMs generally excel at recognizing debatable issues, their ability to provide comprehensive answers encompassing diverse perspectives varies considerably.
AwarenessBench: Assessing Cognitive Capabilities of Language Models
Xiaojian Li | Rongwu Xu | Tianyun Zhang | Yue Wang | Shuo Chen | Qiner Lyu | Briana Zhang | Peiran Yang | Kyle Xue Chen | Haoyuan Shi | Yu Wang | Wei Xu
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Xiaojian Li | Rongwu Xu | Tianyun Zhang | Yue Wang | Shuo Chen | Qiner Lyu | Briana Zhang | Peiran Yang | Kyle Xue Chen | Haoyuan Shi | Yu Wang | Wei Xu
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
As language models (LMs) exhibit increasingly consciousness-like behaviors, evaluating their cognitive abilities becomes essential. We introduce AwarenessBench, the first comprehensive benchmark for assessing the cognitive abilities of LMs in four dimensions: metacognition, self-awareness, social awareness, and situational awareness, covering 15 cognitive functions and 14,381 samples. Evaluating 18 state-of-the-art LMs, we find that all consistently surpass random baselines, with more advanced models performing better. We further compare LMs with human performance across three demographic groups, where the best-performing model surpasses human averages overall, but most still fall markedly short in metacognition and self-awareness. Finally, we show that awareness is a distinct capability: progress in language modeling or reasoning does not necessarily translate into improved cognition.