2010 | OriginalPaper | Buchkapitel
Exploiting Multilingual Grammars and Machine Learning Techniques to Build an Event Extraction System for Portuguese
verfasst von : Vanni Zavarella, Hristo Tanev, Jens Linge, Jakub Piskorski, Martin Atkinson, Ralf Steinberger
Erschienen in: Computational Processing of the Portuguese Language
Verlag: Springer Berlin Heidelberg
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We describe a methodology for building event extraction systems. The approach is based on multilingual domain-specific grammars and exploits weakly supervised machine learning algorithms for lexical acquisition. We report on the process of adapting an already existing event extraction system for the domain of conflicts and crises to the Portuguese language.