Web: http://arxiv.org/abs/2012.14610

May 5, 2022, 1:11 a.m. | Barlas Oguz, Xilun Chen, Vladimir Karpukhin, Stan Peshterliev, Dmytro Okhonko, Michael Schlichtkrull, Sonal Gupta, Yashar Mehdad, Scott Yih

cs.CL updates on arXiv.org arxiv.org

We study open-domain question answering with structured, unstructured and
semi-structured knowledge sources, including text, tables, lists and knowledge
bases. Departing from prior work, we propose a unifying approach that
homogenizes all sources by reducing them to text and applies the
retriever-reader model which has so far been limited to text sources only. Our
approach greatly improves the results on knowledge-base QA tasks by 11 points,
compared to latest graph-based methods. More importantly, we demonstrate that
our unified knowledge (UniK-QA) model …

arxiv knowledge open qa question answering

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