Exploiting Machine Learning Techniques to Build an Event Extraction System for Portuguese and Spanish
Hristo Tanev, Vanni Zavarella, Jens Patrick Linge, Mijail A. Kabadjov, Jakub Piskorski, Martin Atkinson, Ralf Steinberger · DOAJ (DOAJ: Directory of Open Access Journals) · 2009
We describe a multilingual methodology for adapting an event extraction system to new languages. The methodology is based on highly multilingual domain-specific grammars and exploits weakly supervised machine learning algorithms for lexical acquisition. We adapted an already existing event extraction system for the domain of conflicts and crises to Portuguese and Spanish languages. The results are encouraging and demonstrate the effectiveness of our approach.