Paper: Consonant Spreading in Arabic Stems

ACL ID P98-1018
Title Consonant Spreading in Arabic Stems
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1998

This paper examines the phenomenon of conso- nant spreading in Arabic stems. Each spread- ing involves a local surface copying of an un- derlying consonant, and, in certain phonologi- cal contexts, spreading alternates productively with consonant lengthening (or gemination). The morphophonemic triggers of spreading lie in the patterns or even in the roots themselves, and the combination of a spreading root and a spreading pattern causes a consonant to be copied multiple times. The interdigitation of Arabic stems and the realization of consonant spreading are formalized using finite-state mor- photactics and variation rules, and this ap- proach has been successfully implemented in a large-scale Arabic morphological analyzer which is available for testing on the Internet.