Information Extraction from Single and Multiple Sentences

Information Extraction from Single and Multiple Sentences. Stevenson, M. In Proceedings of the 20th Internation Conference on Computational Linguistics COLING2004, volume 2, pages 875-881, 2004. Association for Computational Linguistics.
abstract bibtex

Some Information Extraction (IE) systems are limited to extracting events expressed in a single sentence. It is not clear what effect this has on the difficulty of the extraction task. This paper addresses the problem by comparing a corpus which has been annotated using two separate schemes: one which lists all events described in the text and another listing only those expressed within a single sentence. It was found that only 40.6% of the events in the first annotation scheme were fully contained in the second.

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 title = {Information Extraction from Single and Multiple Sentences},
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 abstract = {Some Information Extraction (IE) systems are limited to extracting events expressed in a single sentence. It is not clear what effect this has on the difficulty of the extraction task. This paper addresses the problem by comparing a corpus which has been annotated using two separate schemes: one which lists all events described in the text and another listing only those expressed within a single sentence. It was found that only 40.6% of the events in the first annotation scheme were fully contained in the second.},
 bibtype = {inProceedings},
 author = {Stevenson, Mark},
 booktitle = {Proceedings of the 20th Internation Conference on Computational Linguistics COLING2004}
}

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