TY - GEN
T1 - Noun Phrase chunking in Hebrew influence of lexical and morphological features
AU - Goldberg, Yoav
AU - Adler, Meni
AU - Elhadad, Michael
PY - 2006/12/1
Y1 - 2006/12/1
N2 - We present a method for Noun Phrase chunking in Hebrew. We show that the traditional definition of base-NPs as nonrecursive noun phrases does not apply in Hebrew, and propose an alternative definition of Simple NPs. We review syntactic properties of Hebrew related to noun phrases, which indicate that the task of Hebrew SimpleNP chunking is harder than base-NP chunking in English. As a confirmation, we apply methods known to work well for English to Hebrew data. These methods give low results (F from 76 to 86) in Hebrew. We then discuss our method, which applies SVM induction over lexical and morphological features. Morphological features improve the average precision by ∼0.5%, recall by ∼1%, and F-measure by ∼0.75, resulting in a system with average performance of 93% precision, 93.4% recall and 93.2 Fmeasure.*
AB - We present a method for Noun Phrase chunking in Hebrew. We show that the traditional definition of base-NPs as nonrecursive noun phrases does not apply in Hebrew, and propose an alternative definition of Simple NPs. We review syntactic properties of Hebrew related to noun phrases, which indicate that the task of Hebrew SimpleNP chunking is harder than base-NP chunking in English. As a confirmation, we apply methods known to work well for English to Hebrew data. These methods give low results (F from 76 to 86) in Hebrew. We then discuss our method, which applies SVM induction over lexical and morphological features. Morphological features improve the average precision by ∼0.5%, recall by ∼1%, and F-measure by ∼0.75, resulting in a system with average performance of 93% precision, 93.4% recall and 93.2 Fmeasure.*
UR - https://www.scopus.com/pages/publications/77951494856
M3 - Conference contribution
AN - SCOPUS:77951494856
SN - 1932432655
SN - 9781932432657
T3 - COLING/ACL 2006 - 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics, Proceedings of the Conference
SP - 689
EP - 696
BT - COLING/ACL 2006 - 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics, Proceedings of the Conference
T2 - 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics, COLING/ACL 2006
Y2 - 17 July 2006 through 21 July 2006
ER -