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cs.CL2026
Text Corpora as Concept Fields: Black-Box Hallucination and Novelty Measurement
Nicholas S. Kersting, Vittorio Castelli, Chieh Ting Yeh +3
We introduce the \textbf{Concept Field} of a text corpus: a local drift field with pointwise uncertainty, estimated in sentence-embedding space from the deltas between consecutive…
cs.CL2024
Evaluating Quality of Answers for Retrieval-Augmented Generation: A Strong LLM Is All You Need
Yang Wang, Alberto Garcia Hernandez, Roman Kyslyi +1
We present a comprehensive study of answer quality evaluation in Retrieval-Augmented Generation (RAG) applications using vRAG-Eval, a novel grading system that is designed to asses…