Name
Title | ||
|---|---|---|
Automatically extracting nominal mentions of events with a bootstrapped probabilistic classifier |
Abstract | ||
|---|---|---|
Most approaches to event extraction focus on mentions anchored in verbs. However, many mentions of events surface as noun phrases. Detecting them can increase the recall of event extraction and provide the foundation for detecting relations between events. This paper describes a weakly-supervised method for detecting nominal event mentions that combines techniques from word sense disambiguation (WSD) and lexical acquisition to create a classifier that labels noun phrases as denoting events or non-events. The classifier uses boot-strapped probabilistic generative models of the contexts of events and non-events. The contexts are the lexically-anchored semantic dependency relations that the NPs appear in. Our method dramatically improves with bootstrapping, and comfortably outperforms lexical lookup methods which are based on very much larger hand-crafted resources. |
Year | Venue | Keywords |
|---|---|---|
2006 | ACL | lexical lookup method,nominal event,combines technique,bootstrapped probabilistic classifier,weakly-supervised method,event extraction focus,larger hand-crafted resource,lexical acquisition,event extraction,denoting event,noun phrase |
Field | DocType | Volume |
Noun phrase,Computer science,Bootstrapping,Artificial intelligence,Natural language processing,Generative grammar,Probabilistic logic,Classifier (linguistics),Probabilistic classification,Recall,Word-sense disambiguation | Conference | P06-2 |
Citations | PageRank | References |
6 | 0.59 | 13 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Cassandre Creswell | 1 | 6 | 1.60 |
| Matthew J. Beal | 2 | 600 | 64.31 |
| John Chen | 3 | 21 | 7.27 |
| Thomas L. Cornell | 4 | 20 | 1.60 |
| Lars Nilsson | 5 | 6 | 0.59 |
| Rohini K. Srihari | 6 | 835 | 109.11 |