Conference Proceedings
From graphs to events: A subgraph matching approach for information eextraction from biomedical text
H Liu, R Komandur, K Verspoor
Proceedings of Bionlp Shared Task 2011 Workshop at the 49th Annual Meeting of the Association for Computational Linguistics Human Language Technologies Acl Hlt 2011 | ACM Press | Published : 2011
Abstract
We participated in the BioNLP Shared Task 2011, addressing the GENIA event extraction (GE) and the Epigenetics and Post-translational Modifications (EPI) tasks. A graph-based approach is employed to automatically learn rules for detecting biological events in the life-science literature. The event rules are learned by identifying the key contextual dependencies from full syntactic parsing of annotated text. Event recognition is performed by searching for an isomorphism between event rules and the dependency graphs of sentences in the input texts. While we explored methods such as performance-based rule ranking to improve precision, we merged rules across multiple event types in order to incr..
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