• A Novel Approach to Preserving Privacy in Social Network Data Publishing 

    Bensimessaoud, Sihem; Benmeziane, Souad; Badache, Nadjib; Djellalbia, Amina
    In : Rapports de recherche internes, (CERIST, Alger, 2016-10-24)
    Today, more and more social network data are published for data analysis. Although this analysis is important, these publications may be targeted by re-identification attacks i.e., where an attacker tries to recover the identities of some nodes that were removed during the anonymization process. Among these attacks, we ...
  • A basic platform of collaborative filtring 

    Nouali, Omar; Kirat, Sabah; Meziani, Hadjer
    In : Rapports de recherche internes, (CERIST, Alger, 2008)
    With the explosive growth of the quantity of new information the development of information systems to target the best answers provided to users, so they are closer to their expectations and personal taste, has become an unavoidable necessity. The collaborative filtering systems are among these information systems with ...
  • A causal multicast protocol for dynamic groups in cellular networks 

    Benzaid, Chafika; Badache, Nadjib
    In : EATIS08 : Proceedings of the 2008 Euro American Conference on Telematics and Information Systems, (ACM, Aracaju, Brazil, 2008-09-10)
    Group communication is an abstraction which deals with multicasting a message from a source process to a group of processes. In Group Communication Systems (GCS), causal message ordering is an essential tool to ensure interaction among group members in a consistent way. In this paper, we propose a simple and optimal ...
  • A Classification-based XML Information Retrieval Model 

    Bessai, Fatma-Zohra
    In : Rapports de recherche internes, (CERIST, Alger, 2014-11-27)
    The main problem of content-based XML information retrieval is how to select the relevant unit of information that answers the user’s query composed of only key words (content only). Our objective is to select relevant elements that can belong to different parts of XML documents of the corpus for user’s information need. ...
  • A Clustering Application for the Web Usage Mining 

    Kouici, Salima
    In : Rapports de recherche internes, (CERIST, Alger, 2012-12)
    The Web Usage Mining constitutes a new branch of the Web Mining. It allows the study of the behavior of both users and potential customers via their site navigation. The mainly used source for the Web Usage Mining is the servers Log Files. A Log File contains an important mass of data, including user’s information ...
  • A Clustering application for the Web Usage Mining. 

    Kouici, Salima; Khelladi, Abdelkader
    In : Universal Journal of Mathematics and Mathematical Sciences, (Pushpa Publishing House, 2013-07)
    The web usage mining constitutes a new branch of the web mining. It allows the study of the behavior of both users and potential customers via their site navigation. The mainly used source for the web usage mining is the servers log files. A log file contains an important mass of data, including user’s information ...
  • A clustering technique to analyse anonymous systems 

    Benmeziane, Souad; Badache, Nadjib
    In : Rapports de recherche internes, (CERIST, Alger, 2014-07-20)
    Concerns about privacy and anonymity have gained more and more attention in conjunction with the rapid growth of the Internet as a means of communication and information dissemination. A number of anonymous communication systems have been developed to protect the identity of communication participants. Nevertheless, it ...
  • A clustering technique to analyse anonymous users. 

    Benmeziane, Souad; Badache, Nadjib
    In : 2014 International Conference on Communications Systems and Technologies - Network Security and Privacy, (CPS, Tunisie, 2014-08-09)
    Concerns about privacy and anonymity have gained more and more attention in conjunction with the rapid growth of the Internet as a means of communication and information dissemination. A number of anonymous communication systems have been developed to protect the identity of communication participants. Nevertheless, it ...
  • A Communication model of distributed information sources bacteria colonies inspired 

    Mellah, Hakima; Hassas, Salima; Drias, Habiba
    In : INES '06 : 10th International Conference on Intelligent Engineering Systems, 26-28 June 20062006. Proceedings, (IEEE, London, 2006)
    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 ...
  • A comparative study between compressed video watermarking methods based on DCT coefficients and intra prediction 

    Bouchama, Samira; Hamami, Latifa; Aliane, Hassina
    In : Rapports de recherche internes, (CERIST, Alger, 2011-09)
    Several watermarking methods have been applied to the newest video codec H.264/AVC to satisfy different applications such as authentication, tamper proof and copyright protection. Our objective through this paper is to present a comparative study between watermarking methods based on the quantized (Q) DCT coefficients ...
  • A comparative study between compressed video watermarking methods based on DCT coefficients and intra prediction 

    Bouchama, Samira; Hamami, Latifa; Aliane, Hassina
    In : Séminaire inter-laboratoires des doctorants en Informatique, (Constantine, Algerie, 2011-04-20)
    Several watermarking methods have been applied to the newest video codec H.264/AVC to satisfy different applications such as authentication, tamper proof and copyright protection. Our objective through this paper is to present a comparative study between watermarking methods based on the quantized (Q) DCT coefficients ...
  • A Comparison on MANETs’ Service Replication Schemes: Interest versus Topology Prediction 

    Derhab, Abdelouahid; Hamdy, Mohamed; König-Ries, Birgitta
    In : Recent Trends in Wireless and Mobile Networks : Second International Conference, WiMo 2010, Ankara, Turkey, June 26-28, 2010. Proceedings, (Springer, Berlin, 2010)
    Mobile ad hoc networks (MANETs) are characterized by high dynamics in particular with respect to the formation of network partitions. The presence of unconnected partitions makes the deployed services inaccessible to some network participants. Service replication is employed as an approach to overcome this problem and ...
  • A distributed mutual exclusion algorithm over multi-routing protocol for mobile ad hoc networks 

    Derhab, Abdelouahid; Badache, Nadjib
    In : International Journal of Parallel, Emergent and Distributed Systems, (Taylor et Francis, 2008-04-15)
    In this paper, we propose a new architecture to solve the problem of mutual exclusion in mobile ad hoc networks (MANET). The architecture is composed of two layers: (i) a middleware layer that contains a token-based distributed mutual exclusion algorithm (DMEA) and (ii) a network layer that includes two routing forwarding ...
  • A fault tolerant services discovery by self organisation: a MAS approach. 

    Mellah, Hakima; Hassas, Salima; Drias, Habiba
    In : International journal of Business Information Systems, (Inderscience, 2013)
    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 ...
  • A flexible distance for the spatial placement in a multimedia document 

    Maredj, Azze-Eddine; Tonkin, Nourredine; Sadallah, Madjid; Alimazighi, Zaia
    In : The third international conference on iInformation and Communication Technologies: From Theory to Applications (ICTTA 2008), (Institute of Electrical and Electronics Engineers ( IEEE ), Damas - Syrie, 2008-04-07)
    In the multimedia documents authoring systems the management of spatial and temporal inter-objects relations is the most delicate task. Spatial relations management refers to the appropriate means to express relations between the document objects and guarantee their consistency. Usually it is represented by spatial ...
  • A Formal Approach for a Self Organizing Protocol Inspired by Bacteria Colonies: Production System Application 

    Mellah, Hakima; Hassas, Salima; Drias, Habiba; Raiah, A.; Tiguemoumine, A.
    In : Bioinspired Models of Network, Information, and Computing Systems : 4th International Conference, BIONETICS 2009, Avignon, France, December 9-11, 2009, Revised Selected Papers, (Springer Berlin Heidelberg, Berlin, 2010)
    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 ...
  • A formal approach for a self organizing protocol: Production System application 

    Mellah, Hakima; Drias, Habiba; Hassas, Salima
    In : Rapports de recherche internes, (CERIST, Alger, 2009-10)
    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 ...
  • A formal model for output multimodal HCI 

    Mohand Oussaïd, Linda; Ait Sadoune, Idir; Ait Ameur, Yamine; Ahmed-Nacer, Mohamed
    In : (Springer Vienna, 2015-07)
    Multimodal human–computer interaction (HCI) combine modalities at an abstract specification level in order to get information from the user (input multimodality) and to return information to the user (output multimodality). These multimodal interfaces use two mechanisms: first, the fusion of information transmitted by ...
  • A framework for Object Classification in Fareld Videos 

    Setitra, Insaf; Larabi, Slimane
    In : Wicon 2014, (Springer, Lisbon, Portugal, 2014-12)
    Object classification in videos is an important step in many applications such as abnormal event detection in video surveillance, traf- fic analysis is urban scenes and behavior control in crowded locations. In this work, propose a framework for moving object classification in farfield videos. Much works have been ...
  • A framework for object classification in farfield videos 

    Setitra, Insaf; Larabi, Slimane
    In : Rapports de recherche internes, (CERIST, Alger, 2014-10-26)
    Object classification in videos is an important step in many applications such as abnormal event detection in video surveillance, traffic analysis is urban scenes and behavior control in crowded locations. In this work, propose a framework for moving object classification in farfield videos. Much works have been dedicated ...