Anzeige
Erschienen in:
2011 | OriginalPaper | Buchkapitel
Building a Corpus-Derived Gazetteer for Named Entity Recognition
verfasst von : Norshuhani Zamin, Alan Oxley
Erschienen in: Software Engineering and Computer Systems
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Gazetteers, or entity dictionaries, are an important element for Named Entity Recognition. Named Entity Recognition is an essential component of Information Extraction. Gazetteers work as specialized dictionaries to support initial tagging. They provide quick entity identification thus creating richer document representation. However, the compilation of such gazetteers is sometimes mentioned as a stumbling block in Named Entity Recognition. Machine learning, both rule-based and look-up based approaches, are often used to perform this process. In this paper, a gazetteer developed from MUC-3 annotated data for the ‘person named’ entity type is presented. The process used has a small computational cost. We combine rule-based grammars and a simple filtering technique for automatically inducing the gazetteer. We conclude with experiments to compare the content of the gazetteer with the manually crafted one.