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
Semantic Reformulation Entropy for Robust Hallucination Detection in QA Tasks
Chaodong Tong, Qi Zhang, Lei Jiang +3
Reliable question answering with large language models (LLMs) is challenged by hallucinations, fluent but factually incorrect outputs arising from epistemic uncertainty. Existing e…