A pairwise event coreference model, feature impact and evaluation for event coreference resolution

Authors:
Zheng Chen;Heng Ji;Robert Haralick
Affiliations:
The City University of New York;The City University of New York;The City University of New York
Venue:
eETTs '09 Proceedings of the Workshop on Events in Emerging Text Types
Year:
2009

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Abstract

In past years, there has been substantial work on the problem of entity coreference resolution whereas much less attention has been paid to event coreference resolution. Starting with some motivating examples, we formally state the problem of event coreference resolution in the ACE program, present an agglomerative clustering algorithm for the task, explore the feature impact in the event coreference model and compare three evaluation metrics that were previously adopted in entity coreference resolution: MUC F-Measure, B-Cubed F-Measure and ECM F-Measure.