• [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] houssem safi, Maher Jaoua et Lamia Belguith. PIRAT:a Personalized Information Retrieval system in Arabic Texts based on a hybrid representation of a user profile. NLDB 2016 - 21st International Conference on Applications of Natural Language to Information Systems, juin, 2016, International Conference, Royaume-Uni
    The work presented in this paper aims at developing a Personalized Information Retrieval system in Arabic Texts (“PIRAT”) based on the user's preferences/interests. For this reason, we proposed a user’s modeling and a personalized matching method document-query. The proposed user’s modeling is based on a hybrid representation of the user profile. In this approach, we introduce an algorithm which automatically builds a hierarchical user profile that represents his implicit personal interests and domain. It is to represent the interests and the domain with a conceptual network of nodes linked together through relationships respecting the linking topology defined in the domain of hierarchies and ontologies (hyperonymy, hyponymy, and synonymy). Then, we address the problem of unavailable language resources by building i) a large Arabic text corpus entitled “WCAT” (ie 30550 articles) and ii) i) Building our own Arabic queries corpus entitled “AQC2” in order to evaluate the suggested PIRAT system and AXON system. The results of this evaluation are promising.
  • [Conférence intertnationale] Wassim Chtourou et Lotfi Bouzguenda. Towards an Interaction Protocols Adaptation and Management System for Coordination in Crisis Business Processes. 10th International KES Conference on AGENTS AND MULTI-AGENT SYSTEMS: TECHNOLOGIES AND APPLICATIONS KES-AMSTA-16, juin, 2016, Tenerife, Espagne

    This work addresses the Interaction Protocols (IP) adaptation issue for coordination in the context of Crisis Management Processes (CMP). CMP refers to the coordination of different activities performed by involved actors in a dy-namic and unstable context. Using interaction protocols (such as contract net, negotiation or vote) is one possible way to deal with this coordination. In order to guarantee an efficient use of IP, we need to adapt them. In our previous work, we proposed an MDA (Model Driven Architecture) framework to support the IP adaptation. More precisely, we proposed the conjointly use of version and context notions to model the IP versions and their contexts (the CIM level). We also pro-posed an extension of AUML sequence diagram meta-model to specify graph-ically the contextualized versioned interaction protocols (the PIM level). In this paper, we propose an Interaction Protocols Adaptation and Management System (IPAMS) that supports the previous contributions. This IPAMS ensures the IP adaptation at run time. Finally, we propose a well-known crisis scenario called “Air Crash Management Process” in order to illustrate the proposed solution.

  • [Chapitre] Soufiene JAFFALI, Salma Jammoussi, Abdelmajid Ben Hamadou et Smaili Kamel. Grouping Like-Minded Users for Ratings’ Prediction. KES-Intelligent Decision Technologies 2016, juin, 2016, 3-14, Espagne
  • [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.

  • [Conférence intertnationale] Salma Ben jemaa. Human identification based on the palmar surface of the hand. 13 th International Conference Computer Graphics, Imaging and Visualization, avril, 2016, pp.51-56, Beni Mellal, Maroc
    In this paper, we investigate a new multimodal
    biometric approach for personal recognition, based on two
    different biometrics computed from the same hand image:
    palmprint and fingerprint surface. The detection of these
    modalities is conducted with no constraints imposed on the
    subject. In addition, this approach has the particularity of
    using a new fusion scheme based on the rank level integration
    method to consolidate the results obtained from the different
    biometric instances. Rank level fusion is a relatively new fusion
    approach. It is not a well-studied research problem, yet it
    has a high potential for efficient consolidation of multiple
    unimodal biometric outputs matching. To the best of our
    knowledge, we present the first application of the rank level
    fusion to consolidate the rank information produced by the
    five individual fingerprint surface and the palmprint. The
    achieved experimental results have shown that the designed
    system achieves an excellent recognition rate and provides more
    security than unimodal biometric system.
  • [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).

  • 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.