9 papers
Code Monitor Red Teaming for Public-Test-Passing Code
Junchi Liao, Jiawen Deng, Fuji Ren
Visible tests are a common gate for LLM-generated code, but passing them does not certify specification correctness. We study a deployment-like monitoring problem: after code has p…
Auditing Evidence Use in Medical LLM Diagnosis
Junchi Liao, Jiawen Deng, Fuji Ren
Medical LLMs are often evaluated by whether they select the correct diagnosis, but diagnostic accuracy alone does not show whether the model used the case evidence appropriately. W…
Evidence Interfaces Shape How Retrieval-Augmented Readers Use Support
Junchi Liao, Jiawen Deng, Fuji Ren
In multi-hop RAG evaluation, a top-k answer score can hide two different failures: the retrieval window may drop part of the support chain, or it may contain support in a form the…
VISTA: Auditing Semantic Divergence in Vision-Language Models
Junchi Liao, Jiawen Deng, Fuji Ren
Vision-language models can exhibit visual concept-conditioned divergence: given images containing demographic features, corporate logos, or ideological symbols, some models produce…
Modality-Aware Contrastive and Uncertainty-Regularized Emotion Recognition
Yan Zhuang, Minhao Liu, Yanru Zhang +2
Multimodal Emotion Recognition (MER) has attracted growing attention with the rapid advancement of human-computer interaction. However, different modalities exhibit substantial dis…
Beyond Explicit Refusals: Soft-Failure Attacks on Retrieval-Augmented Generation
Wentao Zhang, Yan Zhuang, ZhuHang Zheng +3
Existing jamming attacks on Retrieval-Augmented Generation (RAG) systems typically induce explicit refusals or denial-of-service behaviors, which are conspicuous and easy to detect…