Ontology Aspects in Relation Extraction (1)

Overview

• Relation Extraction
• Concept frames
• Frame structure: Relations in concept frames
• Acquisition of concept frames
• Top-level frame hierarchy ("Ontology")
• Studies of French relation patterns in conceptually annotated corpora
• Pattern detection and description method
• Example patterns for five relations
• Problems and pattern dependencies
• Conclusion

Workshop Ontologies and Information Extraction
EUROLAN Summer School, Bucharest, 4 August 2003. © Birte Lönneker