A Computational Morphological Model for Arabic Diminutive Generation
Keywords:diminutive, Prosodic Morphology, non-concatenative, pushdown automata, NooJ platform.
This paper presents a computational morphological model which is capable of generating Arabic diminutives. It consists mainly of two parts: a linguistic analysis and implementation. The linguistic analysis follows the Prosodic Morphology theory to account for the templatic formation of Arabic diminutives. In the implementation part, the model employs pushdown automata (PDA) to model diminutive morphology building on the linguistic analysis. The model consists of two components: a lexicon and transformational rules. The lexicon component contains the lexical entries which are classified according to four criteria: their syllabic structure, the number of consonants they have, vowels length in syllables, and the presence of the feminine marker. The core of the grammar is a set of 11 transformational rules which are capable of generating diminutives from the different classes of stems. The model has been implemented in NooJ tool and has been tested on all classes of stems, biconsonantal, triconsonantal, quadri-consonantal and quinque-consonantal. The paper also shows how the challenging problem of Arabic non-concatenative diminutive formation can be efficiently handled using pushdown automata implemented in NooJ tool
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