Relation extraction is a key step to address the problem of structuring natural language text. This paper proposes a new ontology class hierarchy feature to improve relation extraction when applying a method based on the distant supervision approach. It argues in favour of the expressiveness of the feature, in multi-class perceptrons, by experimentally showing its effectiveness when compared with combinations of (regular) lexical features.
CITATION STYLE
Assis, P. H. R., Casanova, M. A., Laender, A. H. F., & Milidiu, R. (2015). Improving relation extraction by using an ontology class hierarchy feature. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 9419, pp. 241–249). Springer Verlag. https://doi.org/10.1007/978-3-319-26187-4_20
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