Towards Semantic Exploration of Tables in Scientific Documents
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Date
2023-05-28
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Citation of Original Publication
Mulwad, Varish, et al. "Towards Semantic Exploration of Tables in Scientific Documents" Proceedings of the ESWC 2023 Workshops and Tutorials; 1 st International Workshop on SemTech4STLD, May 28, 2023, Hersonissos, Greece (28 May, 2023). https://ceur-ws.org/Vol-3443/ESWC_2023_SemTech4STLD_paper_2.pdf
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Attribution 4.0 International (CC BY 4.0)
Attribution 4.0 International (CC BY 4.0)
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Abstract
Structured data artifacts such as tables are widely used in scientific literature to organize and
concisely communicate important statistical information. Discovering relevant information in
these tables remains a significant challenge owing to their structural heterogeneity, dense and
often implicit semantics, and diffuse context. This paper describes how we leverage semantic
technologies to enable technical experts to search and explore tabular data embedded within
scientific documents. We present a system for the on-demand construction of knowledge
graphs representing scientific tables (drawn from online scholarly articles hosted by PubMed
Central), and for synthesizing tabular responses to semantic search requests against such
graphs. We discuss key differentiators in our overall approach, including a two-stage semantic
table interpretation that relies on an extensive structural and syntactic characterization of
scientific tables, and a prototype knowledge discovery engine that uses automatically-inferred
semantics of scientific tables to serve search requests by potentially fusing information from
multiple tables on the fly. We evaluate our system on a real-world dataset of approximately
120,000 tables extracted from over 62,000 COVID-19-related scientific articles.