3 papers
cs.CL2026
Knowledge Dependency Estimation for Reliable Question Answering
Chaodong Tong, Qi Zhang, Nannan Sun +2
Reliable question answering requires identifying not only whether an answer is correct, but also which available knowledge the prediction depends on. In realistic LLM-based QA, thi…
cs.CV2026
FaithSCAN: Model-Driven Single-Pass Hallucination Detection for Faithful Visual Question Answering
Chaodong Tong, Qi Zhang, Chen Li +2
Faithfulness hallucinations in VQA occur when vision-language models produce fluent yet visually ungrounded answers, severely undermining their reliability in safety-critical appli…
cs.CL2025
HaluNet: Learning Hallucination Risk from Internal Signals in LLM Question Answering
Chaodong Tong, Qi Zhang, Zhuojun Jiang +2
Large language models (LLMs) achieve strong question answering (QA) performance but can produce fluent answers unsupported by available evidence. Existing hallucination detectors o…