unlike the languages we know, some of the arabic sentences form without any verbs. arab grammarians call these sentences, which contain a subject and a predicate without any linking verbs, nominal sentences. examining theses sentences indicates that their predicate is composed of one of the following words or structures: 1. noun, 2. prepositional phrase, 3. an adverb of time or place, 4. a nomi...

In order to construct a generic grammatical resource for Arabic language, we have chosen to develop an Arabic grammar based on TAG formalism. Our choice is, especially, justified by complementarities that we have noticed between Arabic syntax and this grammatical formalism. This paper consists of two comparative studies. The first is between a set of unification grammars. The second is between ...

Arabic language is very rich in derivations, vocabulary, and grammatical structures. The problem of determining the correct meaning of a word in a non-vowelized Arabic sentence is not a trivial task since Arabic is very rich in the polysemy phenomena. This paper attempts to reveal the word sense ambiguity, by building a semantic parser powered by a statistical semantic analyzer, which may aid i...

In this paper we present a methodology for automating the evaluation of the grammatical coverage of machine translation (MT) systems. The methodology is based on the importance of unfolded grammatical structures, which represent the most basic syntactic pattern for a sentence in a given language. A database of unfolded grammatical structures is built to evaluate the parser of any NLP or MT syst...

undoubtedly the holy quran is a unique book in arabic language, eloquently and rhetorically. its words are a pure collection of arabic literature. all poets, jurisprudents and philosophers believe it as a master art. it is a permanent treasure of arabic and for it many sciences have been generated. it kept the arabic language active and dynamic during ups and downs of the history. it also conta...

in recent decades, research on the processing of grammatical structures in different languages has played a crucial role in psychological and linguistic studies. the present research aims to examine the extent to which arabic- and chinese-speaking learners apply passive voice and aspect in complement clauses in their pieces of writing. to that end, syntactic and pragmatic criteria of applying a...

Arabic has some special syntax features which lead to complex syntax structures. We have developed a formal description of Arabic syntax in Definite Clause Grammar. This grarnrnar is characterized by its h igh descriptive power due to its dual formulat ion in terms of functions and in terms of grammatical categories. The developed g rammar has a high coverage of Arabic language and has context ...

Parsing of Arabic sentences is a necessary mechanism for many natural language processing applications such as machine translation; question answering, knowledge extraction and information retrieval. In this study, we present a top-down chart parser for parsing simple Arabic sentences, including nominal and verbal sentences within specific domain Arabic grammar. We used the Context Free Grammar...

This paper describes the construction of a dependency bank gold standard for Arabic, DCU 250 Arabic Dependency Bank (DCU 250), based on the Arabic Penn Treebank Corpus (ATB) (Bies and Maamouri, 2003; Maamouri and Bies, 2004) within the theoretical framework of Lexical Functional Grammar (LFG). For parsing and automatically extracting grammatical and lexical resources from treebanks, it is neces...

In this paper, we present the redesign of an existing TAG for Arabic using a description language (so-called metagrammatical language). The use of such a language makes it easier for the linguist to share information among grammatical structures while ensuring a high degree of modular-ity within the target grammar. Additionally , this redesign benefits from a grammar testing environment which i...