Weakly supervised definition extraction

Citació

  • Espinosa-Anke L, Ronzano F, Saggion H. Weakly supervised definition extraction. In: Angelova G, Bontcheva K, Mitkov R, editors. International Conference on Recent Advances in Natural Language Processing 2015 (RANLP 2015);2015 Sept 7-9;Hissar, Bulgaria. Stroudsburg: ACL (Association for Computational Linguistics); 2015. p.176-85.

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Descripció

  • Resum

    Definition Extraction (DE) is the task to extract textual definitions from naturally occurring text. It is gaining popularity as a prior step for constructing taxonomies, ontologies, automatic glossaries or dictionary entries. These fields of application motivate greater interest in well-formed encyclopedic text from which to extract definitions, and therefore DE for academic or lay discourse has received less attention. In this paper we propose a weakly supervised bootstrapping approach for identifying textual definitions with higher linguistic variability than the classic encyclopedic genus-et-differentia definition, and take the domain of Natural Language Processing as a use case. We also introduce a novel set of features for DE and explore their relevance. Evaluation is carried out on two datasets that reflect opposed ways of expressing definitional knowledge.
  • Descripció

    Paper presented at International Conference on Recent Advances in Natural Language Processing 2015 (RANLP 2015)
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