Jabalin: a Comprehensive Computational Model of Modern Standard Arabic Verbal Morphology Based on Traditional Arabic Prosody
What it is about
The authors build Jabalín, a generator of fully vocalised Modern Standard Arabic verb forms. The model separates three layers: a root, a derivational stem (the consonants added by the verb pattern), and a vocalism. The verb stem is placed in one of two templates, H or L, chosen by whether the penultimate syllable is heavy or light. The second idea comes from the medieval Arabic prosody of al-Khalil: a consonant with a vowel counts as heavy (1) and a consonant without one as light (0), so each word gets a weight that predicts its syllable shape. Phonological and orthographic changes (weak and doubled roots) are kept as a separate set of 63 rewrite rules. The generated lexicon is checked against the ElixirFM analyser: 99.52% of the sampled forms (44% of the output) are correct. The authors reduce the 24 traditional verb patterns to two templates, and they note that 3- and 4-consonant roots need not be treated differently. The input is a lexicon of 15,453 verb lemmas, which the authors call outdated in places.
Ideas
- I1. A two-template verb generator for The verb: test whether the Hebrew binyanim can be reduced to a small set of consonant-slot templates (F and V/W slots) with the vowels as a separate table, and measure the coverage against
treebanks/hbo/ptnk. - I2. The 1–0 weight count as a deterministic syllable check in
tools/hbo: in pointed mode, reject a segmentation whose syllable weight does not fit the template, and measure the effect on the pointed accuracy. - I3. Their evaluation design, generate a lexicon and test it on a random sample against an independent analyser, with the sample size stated (44%), can be copied for
languages/hboverb paradigms against MACULA.
For Mova
I1 is a rule for The verb and The weak verbs (the weak-root rewrites are their 63-rule set, to be written from our own data). I2 is a test for tools/hbo in pointed mode. I3 is a measure: generated paradigms against MACULA verb forms. Licence: the text is NC-SA; only the ideas are used, no content is carried into a release.
Cite
@misc{martinez2014jabalin,
title = {{Jabalin: a Comprehensive Computational Model of Modern Standard Arabic Verbal Morphology Based on Traditional Arabic Prosody}},
author = {Martinez, Alicia Gonzalez and Hervas, Susana Lopez and Samy, Doaa and Arques, Carlos G. and Sandoval, Antonio Moreno},
year = {2014},
eprint = {1406.7483},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/1406.7483}
}References
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