TY - GEN
T1 - Learning semantic links from a corpus of parallel temporal and causal relations
AU - Bethard, Steven
AU - Martin, James H.
PY - 2008
Y1 - 2008
N2 - Finding temporal and causal relations is crucial to understanding the semantic structure of a text. Since existing corpora provide no parallel temporal and causal annotations, we annotated 1000 conjoined event pairs, achieving inter-annotator agreement of 81.2% on temporal relations and 77.8% on causal relations. We trained machine learning models using features derived from WordNet and the Google N-gram corpus, and they outperformed a variety of baselines, achieving an F-measure of 49.0 for temporals and 52.4 for causals. Analysis of these models suggests that additional data will improve performance, and that temporal information is crucial to causal relation identification.
AB - Finding temporal and causal relations is crucial to understanding the semantic structure of a text. Since existing corpora provide no parallel temporal and causal annotations, we annotated 1000 conjoined event pairs, achieving inter-annotator agreement of 81.2% on temporal relations and 77.8% on causal relations. We trained machine learning models using features derived from WordNet and the Google N-gram corpus, and they outperformed a variety of baselines, achieving an F-measure of 49.0 for temporals and 52.4 for causals. Analysis of these models suggests that additional data will improve performance, and that temporal information is crucial to causal relation identification.
UR - http://www.scopus.com/inward/record.url?scp=84859895316&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859895316&partnerID=8YFLogxK
U2 - 10.3115/1557690.1557740
DO - 10.3115/1557690.1557740
M3 - Conference contribution
AN - SCOPUS:84859895316
SN - 9781932432046
T3 - ACL-08: HLT - 46th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, Proceedings of the Conference
SP - 177
EP - 180
BT - ACL-08
PB - Association for Computational Linguistics (ACL)
T2 - 46th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, ACL-08: HLT
Y2 - 15 June 2008 through 20 June 2008
ER -