The paper presents the design and implementation of the BioNLP'09 Shared Task, and reports the final results with analysis. The shared task consists of three sub-tasks, each of which addresses bio-molecular event extraction at a different level of specificity. The data was developed based on the GENIA event corpus. The shared task was run over 12 weeks, drawing initial interest from 42 teams. Of these teams, 24 submitted final results. The evaluation results are encouraging, indicating that state-of-the-art performance is approaching a practically applicable level and revealing some remaining challenges.
The BioNLP'09 Shared Task on Event Extraction REF ) dedicated a task to detecting negation and speculation in biomedical abstracts, based on the GENIA event corpus annotations.
Overview of BioNLP’09 Shared Task on Event Extraction
Proceedings of the BioNLP 2009 Workshop Companion Volume for Shared Task
Computer Science