• [Journal] Elyes Zarrouk et Yassine Ben Ayed. Hybrid SVM/HMM model for the Arab phonemes recognition. , septembre, 2016, The International Arab Journal of Information Technology (IAJIT), Volume 13 issue no 5

    Hidden Markov Models (HMM) are currently widely used in Automatic Speech Recognition (ASR) as being the most effective models. Yet, they sometimes pose some problems of discrimination. The hybridization of Artificial Neural Networks(ANN) in particular Multi Layer Perceptrons (MLP) with HMM is a promising technique to overcome these limitations. In order to ameliorate results of recognition system, we use Support Vector Machines (SVM) witch characterized by a high predictive power and discrimination. The incorporation of SVM with HMM brings into existence of the new system of ASR. So,

    by using 2800 occurrences of Arabic phonemes, this work arises a comparative study of our acknowledgment system of it as the following: The use of especially the HMM standards lead to a recognition rate of 66.98%. Also, with the hybrid system MLP/HMM we succeed in achieving the value of 73.78%. Moreover, our proposed system SVM/HMM realizes the best performances, whereby, we achieve 75.8% as a recognition frequency.
  • [Conférence intertnationale] Nabil KHOUFI, Chafik Aloulou et Lamia Belguith. Toward Hybrid Method for Parsing Modern Standard Arabic. 17th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNLP 2016), juin, 2016, Chine
  • [Conférence intertnationale] Nabil KHOUFI, Chafik Aloulou et Lamia Belguith. A Framework for Language Resource Construction and Syntactic Analysis: Case of Arabic. 17th International Conference on Intelligent Text Processing and Computational Linguistics, avril, 2016, Konya, Turquie
  • [Proceeding] Malek Lhioui, Kais Haddar et Romary Laurent. Algebraic specification for interoperability between data formats: Application on Arabic lexical data. CICLing 2016: 17th International Conference on Intelligent Text Processing and Computational Linguistics, avril, 2016, Konya, Turquie

    Abstract. Linguistic data formats (LDF) became, over the years, more and more complex and heterogeneous due to the diversity of linguistic needs. Communication between these linguistic data formats is impossible since they are increasingly multiplatform and multi-providers. LDF suffer from several communication issues. Therefore, they have to face several interoperability issues in order to guarantee consistency and avoid redundancy. In an interoperability resolution context, we establish a method based on algebraic specifications to resolve interoperability among data formats. The proposed categorical method consists in constructing a unified lan-guage. In order to compose this unified language, we apply the co-limit algebraic specifications category for each data format. With this method, we establish a complex grid between existing data formats allowing the mapping to the unifier using algebraic specification. Then, we apply our approach on Arabic lexical data. We experiment our approach using Specware software.

  • [Journal] mounira chkiwa, Anis Jedidi et Faiez Gargouri. META-DOCUMENTS AND QUERY EXTENSION TO ENHANCE INFORMATION RETRIEVAL PROCESS. , février, 2016, International Journal of Research in Engineering and Technology, Inde

    In this paper, we present two facets indispensable for the efficiency of our information retrieval system: meta-documents and query extension. Meta-document represents a structure used to annotate our web documents collection and query extension represents an automatic process aimed to enhance user query expression by additional terms. The two facets are indirectly related since added terms to a given query are taken from an ontology based on meta-documents. The cooperation between meta- documents and query extension aims to have an enhanced information retrieval process. In this paper, we present our proposition particularity and its evaluation results which show its efficiency. 

  • [Conférence intertnationale] Fedia Hlioui, Nedia Aloui et Faiez Gargouri. Composition and Adaptation of Educational Resources based on Learner Profile. Fifth International Conference on ICT & Accessibility ICTA, decembre, 2015, Marrakech, Maroc

    Computing Environment for Human Learning (CEHL) systems are based on the use of new technologies to improve the quality of learning. However, their training suffers from a crucial problem mainly in the construction of the adapted
    learning process according to the needs of the learner. In fact thousands of educational resources are available through the
    web today. Therefore, the learner gets lost and hesitated to choose the most adequate educational resources according to
    their preferences and state of knowledge. This paper aims to define reusable, accessible and adapted educational resources.
    For reusing phase, we propose to define a composed educational resource by assembling existing resources through an appropriate schema called also a narrative structure. For the adaptation, we propose a new general learner model. We treat not only the pedagogic aspect, but also the psychological aspect of the learner by including models from cognitive theories such as the MBTI model (Myers-Briggs Type Indicator).

  • [Conférence intertnationale] Wiem Khlif. Integrating semantics and structural information for BPMN model refactoring. Proc. of International conference on information systems (ICIS’15), decembre, 2015, Texas, Etats-Unis
     Refactoring a business process model may enhance 
    the understandability and/or ease the maintainability of the 
    process. So far  proposed refactoring approaches  tackled only the 
    structural aspect of  a  model. As we illustrate in this paper, 
    combining  the semantic aspect with the structural aspect further 
    reduces  the control flow complexity of a business process 
    modeled in the Business Process Modelling Notation. Our 
    refactoring  method adapts a set of rules from  the graph 
    optimization domain. We illustrate the  efficiency  of a subset of 
    the proposed rules through well-established complexity metrics.
  • [Conférence intertnationale] manel fourati, Chaari Abir , Anis Jedidi et Faiez Gargouri. A semiotic semi-automatic annotation for movie audiovisual document. International Conference on Intelligent Systems Design and Applications (ISDA), decembre, 2015, Marrakesh, Maroc
  • [Conférence intertnationale] sihem cherif. Adaptable Web Service Registry for Publishing Context Aware Service Composition. The 17th International Conference on Information Integration and Web-based Applications & Services (iiWAS2015), Brussels, Belgium. , decembre, 2015
  • [Conférence intertnationale] Nawel Jmail, MartineGavaret, FabriceWendling et Christian G bénar. Despikifying SEEG signals using a temporal basis set. ISDA, decembre, 2015
    The current trend in the diagnosis of epilepsy is
    oriented towards high frequency activity that is used to
    characterize the epileptogenic zone. Still, interictal spikes, i.e.
    transient activity, remain a classical marker. A difficult
    question is to separate these two classes of activity that overlap
    in the time-frequency plane. We propose to use a temporal
    basis set in order to describe and subtract spiking activity from
    the traces, as a preprocessing step for further space-timefrequency
    analysis. The set is based on singular value
    decomposition. We select the first three temporal components,
    construct a model of the spikes by projecting the data on the
    new basis and obtain a spike-free signal by subtracting the
    model from the original signal. We prove that despikifying
    results in a better characterization of oscillatory activity,
    promoting time and frequency separation. The resulting
    spatio-temporal maps could help for a better characterization
    of the oscillatory activity in electrophysiology of epilepsy.
  • Date de création : 19 Décembre 2012
    MIRADOC 2011 : Journées doctorales du laboratoire Miracl. Décembre 2011. Touzeur , Tunisie
  • Date de création : 19 Décembre 2012
    MIRADOC’2010, Rencontre Doctorale de Miracl Date : 19-22 décembre 2010. Lieu: Douz , Tunisie
  • Date de création : 19 Décembre 2012
    Les 2éme Journées sur les Réseaux Bayésiens et leurs Applications Date et lieu : octobre 2011, Sfax, Tunisie. Abstract The Bayesian Networks are graphical models that are easy to interpret and update. These models are useful if the knowledge is uncertain, but they lack some means to express ambiguity. To face this problem, we propose Fuzzy Evidence in Bayesian Networks and combine the Fuzzy Logic and Bayesian Network. This has allowed to benefit from mutual advantages of these two approaches, and to overcome the problem of data and observation ambiguity. This paper proposes an inference algorithm which uses the Bayesian Network and Fuzzy Logic reliability. This solution has been implemented, tested and evaluated in comparison with the existing methods.
  • Faiez Gargouri, Wassim Jaziri  Ontology Theory, Management and Design: Advanced Tools and Models ». IGI Global. ISBN-978-1-61520-   859-3. Mars 2010. Description Ontologies and formal representations of knowledge are extremely powerful tools for modeling and managing large applications in several domains ranging from knowledge engineering, to data mining, to the semantic web. Ontology Theory, Management and Design: Advanced Tools and Models, explores the wide range of applications for ontologies, while providing a complete view of the both the theory behind the design and the problems posed by the practical development and use of ontologies. This reference presents an in-depth and forward looking analysis of current research, illustrating the importance of this field and pointing toward to the future of knowledge engineering, management and information technology.  
  • Titre : Finite State Language Engineering Autheurs : BEN HAMADOU A., MESFAR S., SILBERZTEIN M.  ISBN : 978-9973-37602-2 Livre, Edition CPU, Tunis, 2010
  • Titre :  Les Systèmes décisionnels : Théorie et pratique Autheurs : BEN-ABDALLAH H., BOULMARKOUL A., BOUSSAID O., FEKI J., GARGOURI F. ISBN : 789973990020. Nombre des pages: 130 pages Livre, Nouha Editions, 2010.