2 papers
cs.LG2026
RAPTOR: Ridge-Adaptive Logistic Probes
Ziqi Gao, Yaotian Zhu, Qingcheng Zeng +4
Probing studies what information is encoded in a frozen LLM's layer representations by training a lightweight predictor on top of them. Beyond analysis, probes are often used opera…
cs.IR2025
Fact or Facsimile? Evaluating the Factual Robustness of Modern Retrievers
Haoyu Wu, Qingcheng Zeng, Kaize Ding
Dense retrievers and rerankers are central to retrieval-augmented generation (RAG) pipelines, where accurately retrieving factual information is crucial for maintaining system trus…