Browsing by Author "Mellah, Hakima"

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    A Communication model of distributed information sources bacteria colonies inspired
    (IEEE, 2006) Mellah, Hakima; Hassas, Salima; Drias, Habiba
    The implementation of communication organizational strategies constitutes an essential performance factor. Nowadays, the organization becomes companies competitiveness element (organizational structures), networks, knowledge and competences management, and cooperation. This, to be better reactive to ensure the competing character, to support better new information technologies, concerning the data exchange inside as outside an organization. The information systems specification gives a partial description of the organization, which integrated with other descriptions is regarded as being the organization model. Using the abstraction level of an information system (information source) was proven to be not sufficient to face the conflicts confronted by the organizations. These conflicts are the improvement and the change with an aim of adapting constantly to the environment new requirements. These latter are essential to support the dynamic character which tends to characterize the current organizations and which is often nature taken. In order to implement this dynamism, we took as a starting point the biological sciences and more particularly the bacteria colonies. This paper presents a correspondence model between a communication system of distributed information sources and a bacteria colony
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    A fault tolerant services discovery by self organisation: a MAS approach.
    (Inderscience, 2013) Mellah, Hakima; Hassas, Salima; Drias, Habiba
    The service discovery has become an emerging phenomena in software engineering and process engineering as well. The paper presents a multi agent system (MAS) approach, for service discovery process, based on a self-organising protocol. This feature is very crucial for assuring a correct service delivery, to avoid failures or mal-function for the service discovery environment. The requirement for self-organising choreographed services have been well realised, in case of operational, functional and behavioural faults. The self-organising protocol is conceived from bacteria colony.
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    A Formal Approach for a Self Organizing Protocol Inspired by Bacteria Colonies: Production System Application
    (Springer Berlin Heidelberg, 2010) Mellah, Hakima; Hassas, Salima; Drias, Habiba; Raiah, A.; Tiguemoumine, A.
    Any dysfunction in production system (PS) is likely to be very expensive; so modelling by Multi Agent Systems (MAS) makes the production system (PS) possible to have aspects of robustness, reactivity and flexibility, which allow the PS control to be powerful and to react to all the risks being able to occur. In order to have a fault-tolerant PS, we propose when and how to recourse to a self organizing protocol making the MAS capable of changing its communication structure or organization, and thus reorganizing itself without any external intervention.
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    A formal approach for a self organizing protocol: Production System application
    (CERIST, 2009-10) Mellah, Hakima; Drias, Habiba; Hassas, Salima
    Any dysfunction in production system (PS) is likely to be very expensive; so modelling by Multi Agent Systems (MAS) makes the production system (PS) possible to have aspects of robustness, reactivity and flexibility, which allow the PS control to be powerful and to react to all the risks being able to occur. In order to have a fault-tolerant PS, we propose when and how to recourse to a self organizing protocol making the MAS capable of changing its communication structure or organization, and thus reorganizing itself without any external intervention.
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    Une Approche d’Intégration des Contenus Multimédia dans des Services Web
    (Université Abderrahmane Mira de Bejaia, 2012-12-19) Lebib, Fatma-Zohra; Amghar, Youssef; Mellah, Hakima
    Les contenus multimédia sont disponibles dans un grand nombre de diverses sources de contenus distribuées et hétérogènes. Afin de résoudre le problème posé par l’hétérogénéité des sources de contenu, une architecture orientée service est proposée pour assurer une intégration dynamique des contenus multimédia, provenant de différentes sources (base de données relationnelle ou objet, application multimédia, serveur multimédia, etc.). Dans ce travail, nous proposons un modèle que nous appelons Multimédia comme un Service (ou MaaS pour Multimedia as a Service), à travers lequel les fournisseurs de contenus multimédia exposent leurs contenus. Lorsque le service MaaS est découvert, il est classé dans une catégorie de concepts sur la base d’une ontology de domaine. Cependant, l’accès aux contenus se fait à travers une hiérarchie de concepts. Afin de valider notre approche, nous avons implémenté en java un système qui permet l’intégration des contenus multimédia de domaine du sport.
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    Building a social network, based on collaborative tagging, to enhance social information retrieval
    (CERIST, 2012) Benna, Amel; Mellah, Hakima
    Web 2.0 technologies put user at the center of data production and introduce a strong social collaboration. Therefore, the techniques used in traditional information retrieval systems do not meet the requirements of users who want to take into account their social preferences. The idea reported in this paper is to include not only the social context of the user but also that of the resource. In the social network that we consider, the user social context brings his interests, which are captured from a collaborative tagging system, while the resource social context is related to clusters of tags, obtained by classification method, and users’ opinions according to their expertise level on the resource. The results of our experiment evaluation on real-world dataset (crawled from delicious folksonomy) demonstrate significant improvements over traditional retrieval approaches.
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    Building a social network, based on collaborative tagging, to enhance social information retrieval
    (2012-03-24) Benna, Amel; Mellah, Hakima; Hadjari, Karima
    Web 2.0 technologies put user at the center of data production and introduce a strong social collaboration. Therefore, the techniques used in traditional information retrieval systems do not meet the requirements of users who want to take into account their social preferences. The idea reported in this paper is to include not only the social context of the user but also that of the resource. In the social network that we consider, the user social context brings his interests, which are captured from a collaborative tagging system, while the resource social context is related to clusters of tags, obtained by classification method, and users’ opinions according to their expertise level on the resource. The results of our experiment evaluation on real-world datasets (crawled from delicious folksonomy) demonstrate significant improvements over traditional retrieval approaches.
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    Data mining pour la construction de communautés d'utilisateurs
    (CERIST, 2016-05-10) Boulkrinat, Nour El Houda; Drias, Habiba; Mellah, Hakima; Khellouf, Hassina; Bouchabou, Aida
    Les communautés d’utilisateurs sont tenues ensemble par un intérêt commun dans un champ de savoir et sont conduites par un désir et un besoin de partager des idées, des expériences, des modèles, des outils et des meilleures pratiques. Dans ce travail nous présentons notre solution pour la construction de communautés d’utilisateurs en tenant compte des centres d’intérêts et en se basant sur la technologie du data mining. Les centres d’intérêts seront introduits à partir d’une ontologie dédie au domaine de l’informatique. Quant au data mining, il sera utilisé pour la segmentation des communautés via l’utilisation de l’algorithme K-means. Cette construction de communautés aidera le système de recherche d’information à l’acquisition implicite des nouveaux profils par la sélection ou l’adaptation d’un profil prédéfini, et à la reformulation des requêtes de l’utilisateur en fonction de nouvelles connaissances acquissent à partir de la communauté où il appartient.
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    Enterprise information system, agility and complexity, what is the relationship?
    (CERIST, 2016-02-05) Mellah, Hakima; Drias, Habiba
    Complexity term is present everywhere. Complexity surrounds information, information system, organization as well as computing systems. In this work we present some challenges that deal with complexity. Why enterprise organization can be seen as complex? From what, complexity can arise within enterprise information system? What is relationship between complexity and agility? What are factors that may evolve complexity within enterprise information system? How computing system led information system towards complexity? To response to all this challenges, several dimensions dealing with complexity are displayed such as dynamics in enterprise information system components, while interacting, that can be tolerated by components autonomy, intelligibility that causes knowledge evolving, and inter-connectivity that is necessary with distribution. All these factors influence each others, within in a three dimensional system. UML modeling of enterprise information system that includes complexity parameters is given.
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    Exploring a self organizing Multi Agent System for service discovery
    (CERIST, 2009-09) Mellah, Hakima; Drias, Habiba; Banarjee, Soumya; Hassas, Salima
    The paper presents a Multi Agent System (MAS) approach, for service discovery process to consider the user in the service discovery process involoving his interactions under constraints. The service discovery has become an emerging phenomena in software engineering and process engineering as well. The proposed MAS has demonstrated significant self oranizining potential. This feature is very crucial for assuring a correct service delivery, to avoid failures or mal-function for the service discovery environment. The requirement for self organizing choreographed services have been well realized, in case of operational, functional and behavioral faults. Self organization within the MAS is adopted by the recourse to a self organizing protocol conceived from bacteria colony and evolutinary computation paradigm.
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    Handicraft women Recommendation Approach based on User's Social Tagging Operations
    (CERIST, 2016-07-12) Kichou, Saida; Mellah, Hakima; Boussaid, Omar; Meziane, Abdelkrim
    Recommendation predicts which items the user might be interested in, and aims to help users finding the adequate element. Such as movies, music and commercial products, persons may be also recommended. In the case of handicraft women, we propose a recommendation approach based on extracted user’s interest using his/her social tagging operations to improve business activities of the handicrafts women, the approach is applied with preliminary tests.
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    Improving multimedia as a service (MaaS) approach for dynamic multimedia content integration
    (Inderscience, 2013-12) Lebib, Fatma-Zohra; Mellah, Hakima; Monfort, Valérie
    Multimedia content is derived from various autonomous, distributed and heterogeneous content sources. Service Oriented Architecture (SOA) is seen as a general answer to data integration problems. In this research work, we extend previous research works based on a model called Multimedia as a Service (MaaS); through which multimedia content providers expose their content. We propose now a method to automatically discover and invoke relevant MaaSs services, which enables dynamic and transparent multimedia content integration according to user’s preferences and device capabilities. For that, we propose to enhance the semantics in the MaaSs services description using domain ontology and use the standard Composite Capabilities/Preferences Profile (CC/PP) of W3C to manage the user profile.
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    Inclure l’aspect social dans une recherche d’information
    (CERIST, 2012) Benna, Amel; Mellah, Hakima; Oualid, Ali; Choui, Islam; Hadjari, Karima
    Les technologies du Web 2.0 mettent l’utilisateur au centre de la production de données et introduisent une forte composante collaborative et sociale. En conséquence, les techniques utilisées dans les systèmes de recherche d’information classiques ne répondent plus aux exigences des utilisateurs qui veulent voir leurs préférences sociales prises en compte. L’idée rapportée dans ce travail consiste à inclure dans une recherche d’information non seulement le contexte social de l’utilisateur mais aussi celui de la ressource recherché en se basant sur deux aspects sociaux à savoir : le tagging collaboratif et le réseautage social. Dans le réseau social que nous considérons, le contexte social de l’utilisateur réunit ses centres d’intérêt, lesquels sont capturés à partir d’un système de tagging collaboratif. Par contre, le contexte social du document comprend les clusters de tags, obtenus par classification, et les avis des utilisateurs avec leur niveau d’expertise sur le document. Les résultats de notre expérimentation pour mesurer l’impact de l’intégration du contexte social dans une recherche d’information, sur le site de folksonomy déclicious, ont été concluants.
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    Indexing multimedia content for textual querying: A multimodal approach
    (2013-07) Amrane, Abdesalam; Mellah, Hakima; Amghar, Youssef; Aliradi, Rachid
    Multimedia retrieval approaches are classified into three categories: those using textual information, and those using low-level information and those that combine different information extracted from multimedia. Each approach has its advantages and disadvantages as well to improving multimedia retrieval systems. The recent works are oriented towards multimodal approaches. It is in this context that we propose an approach that combines the surrounding text with the information extracted from the visual content of multimedia and represented in the same repository in order to allow querying multimedia content based on keywords or concepts. Each word contained in queries or in description of multimedia is disambiguated by using the WordNet in order to define its semantic concept.
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    Interopérabilité des ontologies
    (CERIST, 2012) Boumellil, Lamia Sabiha; Mellah, Hakima
    Les ontologies sont de plus en plus utilisées depuis une dizaine d’années, notamment depuis l’apparition du Web sémantique. Elles représentent le moyen le plus efficace pour la représentation des connaissances et permettent une représentation structurée et formelle des connaissances tout en préservant leurs sémantiques. Cependant, la diversité des formats de représentation de la connaissance pour un même domaine conduit à l’apparition d’un problème d’hétérogénéité entre les différentes ontologies et donc à un problème d’interopérabilité. Internet étant devenu le moyen de communication de tout un chacun, au point que personne ne peut plus s’en passer, par conséquent il est nécessaire, voir indispensable de concilier entre ces sources d’informations. Pour résoudre le problème d’interopérabilité sémantique entre les ontologies, plusieurs techniques existent : le mapping, l’alignement et la fusion. Ces techniques se basent principalement sur la comparaison des entités de chaque ontologie.
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    Knowledge Discovery from Log Data Analysis in a Multi-source Search System based on Deep Cleaning
    (CERIST, 2019-07) Lebib, Fatma Zohra; Mellah, Hakima; Meziane, Abdelkrim
    In a multi-source search system, understanding users’ interests and behaviour is essential to improve the search and adapt the results according to each user profile. The interesting information characterizing the users can be hidden in large log files, whereas it must be discovered, extracted and analyzed to build an accurate user profile. This paper presents an approach which analyzes the log data of a multi-source search system using the web usage mining techniques. The aim is to capture, model and analyze the behavioural patterns and profiles of users interacting with this system. The proposed approach consists of two major steps, the first step “pre-processing” eliminates the unwanted data from log files based on predefined cleaning rules, and the second step “processing” extracts useful data on user’s previous queries. In addition to the conventional cleaning process that removes irrelevant data from the log file, such as access of multimedia files, error codes and accesses of Web robots, deep cleaning is proposed, which analyzes the queries structure of different sources to further eliminate unwanted data. This allows to accelerate the processing phase. The generated data can be used for personalizing user-system interaction, information filtering and recommending appropriate sources for the needs of each user.
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    Matching Resources in Social Environment
    (2012-06-28) Benna, Amel; Mellah, Hakima; Choui, Islam; Oualid, Ali
    User comments on the web are becoming more and more important. We focus, in this paper, on the use of user-defined tags for annotating resources to identify links between them. These links are based on a social context of the resource, obtained by applying k-means classification method and a hierarchi- cal classification of tags within a cluster. The resources are re-assigned to this classification to facilitate the search process. The ranking of results is performed according to their degree of relevance, by evaluating a similarity score between the tagged contents, in hierarchical clusters of tags, and the user request. The re- sults of the evaluation, on the social bookmarking systemdel.icio.us, demonstrate significant improvements over traditional approaches.
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    La Modélisation des Sytèmes d’Information avec la Méthode Formelle B.
    (CERIST, Alger, 1998) Mellah, Hakima
    Dans la majorité des conceptions de systèmes d’information ,les données et les traitements sont assez bien analysés par la combinaison de diagrammes ,de la langue naturelle et de guide méthodologique. Ce qui nous permet tout de même de représenter le système de manière synthétique et intuitive. Ce que nous pouvons reprocher à cette classe de méthode, c’est l’absence totale d’une sémantique. D’ou l’apparition d’une certaine ambiguïté, ce qui entraîne un manque de fiabilité dans les logiciels produits . C’est dans ce cadre d’idée que l’étude s’est orientée vers les méthodes formelles qui commencent à se répandre sur le marché et plus spécialement la méthode B.
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    Modélisation et organisation des activités coopératives de télémaintenance
    (Ecole nationale supérieure en informatique, 2004) Mellah, Hakima; Zerhouni, Nouredine
    La promesse d'une industrie généralisée et intégrée est de rendre l'entreprise distante plus effective capable de réaliser des innovations à travers un environnement industriel. Les processus industriels deviennent de plus en plus complexes, cette complexité ne fait qu'augmenter la surcharge de l'information et le risque d'erreurs, ce qui entraîne forcément une difficulté immense à les superviser par l'opérateur humain, et un coût important de l'opération de maintenance. Le développement d'un système de télémaintenance ou de maintenance à distance offre aux industriels et aux utilisateurs une grande flexibilité dans la conduite des activités industrielles, il doit supporter des facilités distantes pour assurer la performance de l'équipement industriel et la qualité des opérations. Dans ce sens l’approche par systèmes Multi agents avec ses caractéristiques et sa robustesse dans la résolution de problèmes tend à être répandue dans tous les domaines de la recherche notamment dans ceux de la télémaintenance. Devant l’immensité de l’information, aucun génie ne peut se rappeler de tout, ni résoudre n’importe quel problème. Un groupe de travail coopératif s’avère donc nécessaire voire indispensable. Cependant les capacités de résolution de problèmes ne reposent pas uniquement sur la connaissance du groupe, son expérience mais dépendent encore de ses capacités de faire une recherche efficace d’une assistance de ce groupe de travail. Dans ce cadre d’idée se situe notre modélisation des activités d’un système télémaintenance en choisissant un protocole d’interaction entre des agents experts permettant d’assurer une coopération efficace
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    Ontological Interaction Modeling and Semantic Rule-Based Reasoning for User Interface Adaptation
    (CERIST, 2016) Lebib, Fatma-Zohra; Mellah, Hakima; Mohand Oussaïd, Linda
    Disabled users conducting their interactive tasks on their devices address challenges such as user interface adaptation. The paper provides a valuable knowledge for supporting adaptive user interfaces. In this work an interactive application development, in handicrafts’ domain is considered, with the aim to build ontology which models the available interaction modalities and resources to be used by craftswomen interacting with the system. The paper is more focused on the Semantic Web Rule Language (SWRL) rules allowing to derive the appropriate modalities for specific woman considering different factors related to its sensory perception and motor skills to one finality that is enriching interaction ontology.