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Unsupervised Learning of Narrative Event Chains
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See also
http://malt.ml.cmu.edu/mw/index.php/Chambers_and_Jurafsky,_Unsupervised_Learning_of_Narrative_Event_Chains,_ACL_2008
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Unsupervised Learning of Narrative Event Chains
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Unsupervised Learning of Narrative Event Chains
Συγγραφέας:
Nathanael Chambers, Dan Jurafsky
Publication info:
2008 ACL
Παρατέθηκε από:
Jack Park
6:02 PM 12 February 2013 GMT
URL:
http://acl.eldoc.ub.rug.nl/mirror/P/P08/P08-1090.pdf
Απόσπασμα-
as knowledge backbones that enabled inference and other NLP tasks requiring deep semantic knowledge. We propose unsupervised induction of similar schemata called narrative event chains from raw newswire text. A narrative event chain is a partially ordered set of events related by a common protagonist. We describe a three step process to learning narrative event chains. The first uses unsupervised distributional methods to learn narrative relations between events sharing coreferring arguments. The second applies a temporal classifier to partially order the connected events. Finally, the third prunes and clusters self-contained chains from the space of events. We introduce two evaluations: the narrative cloze to evaluate event relatedness, and an order coherence task to evaluate narrative order. We show a 36% improvement over baseline for narrative prediction and 25% for temporal coherence.
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Προστέθηκε από:-
Jack Park
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#251137
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Ημερ/νία δημιουργίας(GMT):
2/12/2013 5:59:00 PM
Ημερ/νία τελευτ. επεξεργασίας(GMT time):
2/12/2013 6:03:00 PM
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