Achour Hadhémi

Université de Tunis, ISG, Tunis, Tunisia · Informatique

In recent years the growth of social media use all over the world, has had a big impact on the proliferation of misleading information and fake news on the social web. The possibility of sharing any content that is given to users, has emphasized this issue and made the automatic detection of fake news a crucial need. In this work, we focus on the T...

Language resources like corpora, lexicons and dictionaries are the key element to automatically process any natural language. In this paper, we focus on the written Tunisian dialect (TD) which is abundantly present on social media and yet still qualified as a low-resource language. We automatically construct sizable bi-script TD language resources...

Diglossia is one of the main characteristics of Arabic language. In Arab countries, there are three forms of Arabic that co-exist: Classical Arabic (CA) which is mainly used in the Quran and in several classical literary texts, Modern Standard Arabic (MSA) that descends from CA and used as official language, and various regional colloquial varietie...

Language identification is an important task in natural language processing that consists in determining the language of a given text. It has increasingly picked the interest of researchers for the past few years, especially for code-switching informal textual content. In this paper, we focus on the identification of the Romanized user-generated Tu...

In recent years, social web users in Arabic countries have been resorting to the dialects as a written language in their social exchanges. Arabic dialects derive from modern standard Arabic (MSA) and differ significantly from one country to another and one region to another. The use of these dialects has led to an increase of interest in the specif...

With the increasing use of social networks and the multilingualism that characterizes the Internet in general and the social media in particular, an increasing number of recent research works on Sentiment Analysis and Opinion Mining are tackling the analysis of informal textual content, which includes language alternation, known as code-switching....

Dans le domaine du traitement automatique de la langue arabe, la majorité des recherches menées et des réalisations accomplies ont porté principalement sur l’arabe standard moderne (ASM). Les divers dialectes arabes (DA) comptent encore parmi les langues sous-dotées. Ce n’est que depuis une dizaine d’années que ces dialectes ont commencé à susciter...

The language study and automatic processing require the availability of large raw and annotated corpora. Collecting data and constructing such language resources are non-trivial tasks in the NLP field, especially when it comes to deal with low-resource languages. In this paper, we are concerned with the Tunisian dialect (TD) and propose to survey t...

E-government is one of the areas that have been strongly impacted by Information and Communication Technology (ICT) in general and by the growing use of social media, in particular. Social networks are indeed, being increasingly used as an e-participation tool for a better involvement of citizens in decision-making with their governments, raising c...

In recent years, semantic web technologies and ontologies in particular, are being increasingly used in various e-Health systems and applications. However, issues related to automatically constructing, populating and enriching such ontologies are still outstanding. In this paper, we propose an automatic Adverse Drug Events (ADE) ontology population...

In recent years, semantic web technologies and ontologies in particular, are being increasingly used in various e-Health systems and applications. However, issues related to automatically constructing, populating and enriching such ontologies are still outstanding. In this paper, we propose an automatic Adverse Drug Events (ADE) ontology population...

E-government is one of the areas that have been strongly impacted by Information and Communication Technology (ICT) in general and by the growing use of social media, in particular. Social networks are indeed, being increasingly used as an e-participation tool for a better involvement of citizens in decision-making with their governments, raising c...

Transliteration consists of automatically transforming a grapheme’s transcription from one writing system to another, while preserving its pronunciation. It is usually used in the context of machine translation and cross language information retrieval, mainly to deal with the issue of named entities and technical terms. In the case of some Arabic d...

In the Arabic-speaking world, textual productions on social networks are often informal and generally characterized by the use of various dialects, which can be transcribed in Latin or Arabic characters. More specifically, electronic writing in Tunisia is characterized in large part by a mixture of Tunisian dialect with other languages and by a mar...

The Tunisian dialect is the naturally spoken language in Tunisia and unlike the MSA (Modern Standard Arabic), it is an informal and non-written Arabic language variant. However, with the growing use of ICT and especially the internet, a written form of Tunisian dialect is emerging: the electronic Tunisian dialect (ETD). Originally used in the SMS w...

In Arab countries, the dialect is daily gaining ground in the social interaction on the web and swiftly adapting to globalization. Strengthening the relationship of its practitioners with the outside world and facilitating their social exchanges, the dialect encompasses every day new transcriptions that arouse the curiosity of researchers in the NL...

 جميل إطميزي، حذامِ عاشور وأحمد الفرشيشي، 2013، تحرير كتاب "أعمال المؤتمر الدولي الثاني لتقنيات المعلومات والاتصالات في التعليم والتدريب"، ردمك: 9781304583406، الناشر: فيليبس للنشر، 30 أكتوبر، اللغة: العربية، الصفحات:328، www.lulu.com/shop/ahmed-ferchichi-and-hadhemi-achour-and-jamil-itmazi/second-international-conference-technologies-of-informati...

Learning, teaching and training processes are increasingly relying on the Web. Different types of educational web applications are indeed available and provide to learners and trainers a considerable number of online educational resources. In this paper, we tackle the problem of learning objects indexing and retrieving in online learning environmen...

Semantic annotation can facilitate the discovery, retrieval and reusability of Web services. In this paper, we address the problem of automatically creating semantic annotation of web services in the field of bioinformatics. We propose a semi-automatic approach for lexico-syntactic patterns discovery from a training corpus. Lexico-syntactic pattern...

As a result of ICT development and the increasingly growing use of the Internet in particular, practices of language teaching and learning are about to evolve significantly. Our study focuses on the Arabic language, and aims to explore and evaluate Arabic language learning websites. To reach these goals, we propose in a first step, to define an eva...

This study consists in a presentation of the current situation in respect of Internet based financial services in Tunisia. The first part of the study gives an evaluation of Internet Banking in this country, using a quality evaluation model of Internet banking websites, which is derived from the existing Hersey's tailored model. The second part of...

Nous abordons les deux problèmes liés de l’étiquetage grammatical et de la voyellation automatiques de l’arabe. Nous décrivons les difficultés qu’ils posent l’un et l’autre, et au moyen de nombreux comptages, nous en donnons une caractérisation chiffrée. La question posée est jusqu’à quel point la résolution des ambiguïtés grammaticales permet-ell...

We tackle the problem of automatic, or at least assisted, vocalization, a problem that arises from the almost universal absence of vowels in Arabic texts. We show that the problem of vocalization resides in the fact that the majority of Arabic words accept several potential vocalizations and are therefore ambiguous. In essence, the problem reduces...