The Impact of Task and Corpus on Event Extraction Systems

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Knowledge Triples

Source Entity	Relationship	Target Entity
ACE Material	evaluatedBy	Event Extraction Task
Corpus Heterogeneity OtherEntity	affects	NewsCorpus Material
MUC Material	evaluatedBy	Event Extraction Task
NewsCorpus Material	usedIn	Physical Attack Event Identification Task
Physical Attack Event Identification Task	subTaskOf	Event Extraction Task
Semi-Supervised Training Method	usedIn	Event Extraction Task