TY - GEN
T1 - DeepPurple
T2 - 1st Joint Conference on Lexical and Computational Semantics, *SEM 2012
AU - Malandrakis, Nikos
AU - Iosif, Elias
AU - Potamianos, Alexandros
N1 - Publisher Copyright:
© 2012 Association for Computational Linguistics.
PY - 2012
Y1 - 2012
N2 - We estimate the semantic similarity between two sentences using regression models with features: 1) n-gram hit rates (lexical matches) between sentences, 2) lexical semantic similarity between non-matching words, and 3) sentence length. Lexical semantic similarity is computed via co-occurrence counts on a corpus harvested from the web using a modified mutual informationmetric. State-of-The-Art results are obtained for semantic similarity computation at the word level, however, the fusion of this information at the sentence level provides only moderate improvement on Task 6 of SemEval'12. Despite the simple features used, regression models provide good performance, especially for shorter sentences, reaching correlation of 0.62 on the SemEval test set.
AB - We estimate the semantic similarity between two sentences using regression models with features: 1) n-gram hit rates (lexical matches) between sentences, 2) lexical semantic similarity between non-matching words, and 3) sentence length. Lexical semantic similarity is computed via co-occurrence counts on a corpus harvested from the web using a modified mutual informationmetric. State-of-The-Art results are obtained for semantic similarity computation at the word level, however, the fusion of this information at the sentence level provides only moderate improvement on Task 6 of SemEval'12. Despite the simple features used, regression models provide good performance, especially for shorter sentences, reaching correlation of 0.62 on the SemEval test set.
UR - http://www.scopus.com/inward/record.url?scp=84948412049&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84948412049
T3 - *SEM 2012 - 1st Joint Conference on Lexical and Computational Semantics
SP - 565
EP - 570
BT - Proceedings of the 6th International Workshop on Semantic Evaluation, SemEval 2012
PB - Association for Computational Linguistics (ACL)
Y2 - 7 June 2012 through 8 June 2012
ER -