3 papers
cs.CL2026
AIC CTU@AVerImaTeC: dual-retriever RAG for image-text fact checking
Herbert Ullrich, Jan Drchal
In this paper, we present our 3rd place system in the AVerImaTeC shared task, which combines our last year's retrieval-augmented generation (RAG) pipeline with a reverse image sear…
cs.CL2025
AIC CTU@FEVER 8: On-premise fact checking through long context RAG
Herbert Ullrich, Jan Drchal
In this paper, we present our fact-checking pipeline which has scored first in FEVER 8 shared task. Our fact-checking system is a simple two-step RAG pipeline based on our last yea…
cs.CL2025
Claim Extraction for Fact-Checking: Data, Models, and Automated Metrics
Herbert Ullrich, Tomáš MlynáÅ, Jan Drchal
In this paper, we explore the problem of Claim Extraction using one-to-many text generation methods, comparing LLMs, small summarization models finetuned for the task, and a previo…