A framework for schema-driven relationship discovery from unstructured text

Authors:
Cartic Ramakrishnan;Krys J. Kochut;Amit P. Sheth
Affiliations:
LSDIS Lab, Dept. of Computer Science, University of Georgia, Athens, GA;LSDIS Lab, Dept. of Computer Science, University of Georgia, Athens, GA;LSDIS Lab, Dept. of Computer Science, University of Georgia, Athens, GA
Venue:
ISWC'06 Proceedings of the 5th international conference on The Semantic Web
Year:
2006

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Abstract

We address the issue of extracting implicit and explicit relationships between entities in biomedical text. We argue that entities seldom occur in text in their simple form and that relationships in text relate the modified, complex forms of entities with each other. We present a rule-based method for (1) extraction of such complex entities and (2) relationships between them and (3) the conversion of such relationships into RDF. Furthermore, we present results that clearly demonstrate the utility of the generated RDF in discovering knowledge from text corpora by means of locating paths composed of the extracted relationships.