Noun phrase chunking in hebrew: Influence of lexical and morphological features

Y. Goldberg, Meni Adler, Michael Elhadad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We present a method for Noun Phrase chunking in Hebrew. We show that the traditional definition of base-NPs as non-recursive 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 F-measure.
Original languageAmerican English
Title of host publication21st International Conference on Computational Linguistics and the 44th annual meeting of the Association for Computational Linguistics
PublisherAssociation for Computational Linguistics
StatePublished - 2006

Bibliographical note

Place of conference:Australia


Dive into the research topics of 'Noun phrase chunking in hebrew: Influence of lexical and morphological features'. Together they form a unique fingerprint.

Cite this