Paper: Identification Of Event Mentions And Their Semantic Class

ACL ID W06-1618
Title Identification Of Event Mentions And Their Semantic Class
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2006
Authors

Complex tasks like question answering need to be able to identify events in text and the relations among those events. We show that this event identification task and a related task, identifying the seman- tic class of these events, can both be for- mulated as classification problems in a word-chunking paradigm. We introduce a variety of linguistically motivated fea- tures for this task and then train a system that is able to identify events with a pre- cision of 82% and a recall of 71%. We then show a variety of analyses of this model, and their implications for the event identification task.