In this paper, we describe a web-based multilingual tool for Arabic information retrieval based on ontology in the legal domain. We illustrate the manual construction of the ontology and the way it is edited using Protégé2000. Using Arabic (UN) documents we identify the legal terms and the semantic relations between them before mapping them onto their position in the ontology. The process of se...

New input and output concepts under Unicode: Literary, Classical and Qurʾānic Arabic in Unicode involve more characters than the Arabic keyboard can accommodate. To enter sophisticated Arabic, Basis Technology and DecoType jointly developed an IME (input method editor): ALI (Arabic, Latin Input). When used at full power, ALI overstretches conventional font technology. Only DecoType’s Arabic Cal...

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In this paper we present initial results on parsing Arabic using treebank-based parsers and automatic LFG f-structure annotation methodologies. The Arabic Annotation Algorithm (A) (Tounsi et al., 2009) exploits the rich functional annotations in the Penn Arabic Treebank (ATB) (Bies and Maamouri, 2003; Maamouri and Bies, 2004) to assign LFG f-structure equations to trees. For parsing, we modify ...

The existence of dialects for any language constitutes a challenge for NLP in general since it adds another set of variation dimensions from a known standard. The problem is particularly interesting and challenging in Arabic and its different dialects, where the diversion from the standard could, in some linguistic views, warrant a classification as different languages. This problem would not b...

This study reports the reading of 11 Arabic-speaking individuals with letter position dyslexia (LPD), and the effect of letter form on their reading errors. LPD is a peripheral dyslexia caused by a selective deficit to letter position encoding in the orthographic-visual analyzer, which results in migration of letters within words, primarily of middle letters. The Arabic orthography is especiall...

This article presents a comparison between 3-gram and 4-gram term indexing in Arabic document retrieval. The calculation of similarity between query and documents is performed using single term and two term query, based on corpora of Arabic language documents collected from Arabic news websites available online.

Applications of statistical Arabic NLP in general, and text mining in specific, along with the tools underneath perform much better as the statistical processing operates on deeper language factorization(s) than on raw text. Lexical semantic factorization is very important in that aspect due to its feasibility, high level of abstraction, and the language independence of its output. In the core ...

In Cross-Language Information Retrieval (CLIR), queries in one language retrieve relevant documents in other languages. Machine-Readable Dictionaries (MRD) and Machine Translation (MT) systems are important resources for query translation in CLIR. We investigate the use of MT systems and MRD to Arabic-English and English-Arabic CLIR. The translation ambiguity associated with these resources is ...

Using Hidden Markov Models Husni A. Al-Muhtaseb, Sabri A. Mahmoud, Information and Computer Science Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia. e-mail: [email protected], [email protected]. and Rami S. Qahwaji Electronic Imaging and media communications department, University of Bradford, Bradford, UK e-mail: [email protected] Abstract Th...