Soumissions récentes

  • Angle Minimization and Graph Analysis for text line segmentation in handwritten documents 

    Setitra, Insaf; Meziane, Abdelkrim
    In : Rapports de recherche internes, (CERIST, Alger, 2018-07-08)
    We propose in this paper a novel approach for text line segmentation in handwritten documents. The approach is based on angle minimization and graph analysis for text lines extraction. We apply our approach on images of ICDAR 2013 Handwriting Segmentation Contest, and give details about its robustness against skew ...
  • Classification automatique des images histologiques du cancer du sein par réseaux de neurones convolutifs (RNC) 

    Setitra, Insaf; Meziane, Insaf; Mayouf, Mouna Sabrine; Hamrioui, Amel
    In : Rapports de recherche internes, (CERIST, Alger, 2018-08-01)
    Après le cancer de la peau, le cancer du sein est le deuxième type de cancer le plus commun chez la femme à l’échelle mondiale. Ce dernier enregistre un taux de mortalité assez élevé comparé aux autres types de cancer. (Spanhol, Oliveira et al. 2016). Le diagnostic des tumeurs du sein pour différencier les cellules ...
  • WebVR based Interactive Visualization of Open Health Data 

    HADJAR, Hayet; Meziane, Abdelkrim; GHERBI, Rachid; Setitra, Insaf; Zeghichi, Seyf eddine; Lahmil, Abdessalam
    In : Rapports de recherche internes, (CERIST, Alger, 2018-04-22)
    Visualization and manipulation of complex and multivariate data in virtual worlds is important for both holders of these data and for their users. Indeed, Virtual Reality helps to make multidimensional data more intelligible and to bring useful information and knowledge. Offering Virtual Reality to browsers, also known ...
  • INFLUENCE DE L’ENTRAIDE DES ETUDIANTS D’UNE FORMATION À DISTANCE SUR LE DEGRÉ D’AUTODÉTERMINATION DE LEUR MOTIVATION : LE RÔLE DU SENTIMENT D’APPARTENANCE SOCIALE 

    Bebbouchi, Dalila; Jézégou, Annie
    In : Rapports de recherche internes, (CERIST, Alger, 2018-02)
    Par une approche qualitative et compréhensive, cette recherche vise à décrire et analyser les comportements d’entraide spontanée entre des étudiants engagés dans des formations à distance. Il s’agit également d’examiner si le sentiment d’appartenance sociale exerce une influence sur ces comportements. Un autre objectif ...
  • Electrical Energy Consumption Control in Buildings Using Wireless Sensor 

    Djenouri, Djamel; Laidi, Roufaida; Zizoua, Cherif
    In : Rapports de recherche internes, (CERIST, Alger, 2018-01-25)
    Energy consumption in residential and commercial buildings has increased dramatically worldwide in the last decade, due to the constant population and economic growth, the proliferation of electronic and consumer appliances. This has dramatic footprint on the environment in terms of carbon emission, in addition ...
  • UDEPLOY: User-Driven Learning for Occupancy Sensors DEPLOYment In Smart Buildings 

    Laidi, Roufaida; Djenouri, Djamel
    In : Rapports de recherche internes, (CERIST, Alger, 2017-12-25)
    A solution for motion sensors deployment in smart buildings is proposed. It di erentiates the monitored zones according to their occupancy, where highly-occupied zones have higher coverage requirements over low-occupied zones, and thus are assigned higher granularity in the targeted coverage (weights). The proposed ...
  • A stochastic local search combined with support vector machine for web services classification 

    LAACHEMI, Abdelouahab; BOUGHACI, Dalila
    In : Rapports de recherche internes, (CERIST, Alger, 2016-04)
    In this paper, we are interested in the Web service classification. We propose a classification method that first uses a stochastic local search (SLS) meta-heuristic for feature selection then call the Support Vector Machine (SVM) to do the classification task. The proposed method that combines SLS and SVM for Web service ...
  • Big Data : Concepts et Cas d’utilisation 

    AMRANE, Abdesalam
    In : Rapports de recherche internes, (CERIST, Alger, 2015-06-15)
    Dans ce rapport nous décrivons l'écosystème Big Data, le contexte et les cas d'utilisation sont présentés. par la suite nous détaillons les technologies matérielles et logicielles nécessaires (stockage, traitement parallèle, virtualisation, …).
  • Les plateformes Big Data 

    AMRANE, Abdesalam
    In : Rapports de recherche internes, (CERIST, Alger, 2017-05-15)
    Avec la croissance exponentielle du volume de données et la nécessité de l'analyse de ces données, la conception et la mise en œuvre d’une plateforme d'analyse de données Big Data pour gérer, stocker et extraire des prévisions de toutes les données numériques devient primordiale. Une variété de plateformes de Big Data ...
  • New Technique to Deal With Verbose Queries in Social Book Search 

    Chaa, Messaoud; Nouali, Omar; Bellot, Patrice
    In : Rapports de recherche internes, (CERIST, Alger, 2017)
    Verbose query reduction and query term weighting are automatic techniques to deal with verbose queries.
  • New GPU-based Swarm Intelligence Approach For Reducing Big Association Rules Space 

    Djenouri, Youcef; Bendjoudi, Ahcène; Djenouri, Djamel; Belhadi, Asma; Nouali-Taboudjemat, Nadia
    In : Rapports de recherche internes, (CERIST, Alger, 2017-06-14)
    This paper deals with exploration and mining of association rules in big data, with the big challenge of increasing computation time. We propose a new approach based on meta-rules discovery that gives to the user the summary of the rules’ space through a meta-rules representation. This allows the user to decide about ...
  • Proposition d'un nouveau modèle de recherche sociale 

    Bessai Mechmache, Fatma Zohra; Hammouche, Karima; Alimazighi, Zaia
    In : Rapports de recherche internes, (CERIST, Alger, 2017-04-20)
    Dans ce rapport nous proposons un nouveau modèle de recherche d’information sociale. Ce modèle enrichit la structure du réseau en introduisant l’utilisateur comme une entité du réseau social. L’importance d’une entité dépendra de la structure du réseau et de la proximité sémantique entre les différentes entités composant ...
  • Les Manuscrits Arabes Anciens En Ligne : Pratiques et Recommandations 

    Habbak, Noureddine; Meziane, Abdelkrim
    In : Rapports de recherche internes, (CERIST, Alger, 2017-04-10)
    Les technologies de l’information ont révolutionné la bibliothèque classique. Aujourd’hui, de nombreuses bibliothèques passent au monde numérique. L’accès aux documents qui ont tendance à se détériorer rapidement et qui sont très demandés tels que les manuscrits arabes anciens, devient de plus en plus simple, ce qui ...
  • Fast and smart object proposals for object detection 

    Amrane, Abdesalam; Meziane, Abdelkrim; Boulekrinat, Houda; Atik, Ali
    In : Rapports de recherche internes, (CERIST, Alger, 2017-05-11)
    Object localization plays an important role in object detection and classification. In the last years, several methods have shifted from sliding windows techniques to object proposals techniques. The latter produces a small set of windows submitted to an object classifier to reduce the computational time. In this paper, ...
  • Binarization of Document Images with Various Object Sizes 

    Hadjadj, Zineb; Meziane, Abdelkrim
    In : Rapports de recherche internes, (CERIST, Alger, 2017-02-01)
    There are a lot of document image binarization techniques that try to differentiate between foreground and background but many of them fail to correctly detect all the text pixels because of degradations. In this paper, a new binarization method for document images is presented. The proposed method is based on the most ...
  • Ontological Interaction Modeling and Semantic Rule-Based Reasoning for User Interface Adaptation 

    Lebib, Fatma-Zohra; Mellah, Hakima; Mohand Oussaid, Linda
    In : Rapports de recherche internes, (CERIST, Alger, 2016)
    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 ...
  • Selection of Information Sources using a Genetic Algorithm 

    Lebib, Fatma Zohra; Drias, Habiba; Mellah, Hakima
    In : Rapports de recherche internes, (CERIST, Alger, 2017-01-02)
    We address the problem of information sources selection in a context of a large number of distributed sources. We formulate the sources selection problem as a combinatorial optimization problem in order to yield the best set of relevant information sources for a given query. We define a solution as a combination of ...
  • Toward an Approach to Improve Business Process Models Reuse Based on Linkedin Social Network 

    Khider, Hadjer; Benna, Amel; Meziane, Abdelkrim; Hammoudi, Slimane
    In : Rapports de recherche internes, (CERIST, Alger, 2017-01-10)
    Business process (BP) modeling is an important stage in BPM lifecycle. However, modeling BP from scratch is fallible task, complex, time-consuming and error prone task. One of the promising solutions to these issues is the reuse of BP models. BP reusability during the BP modeling stage can be very useful since it reduces ...
  • A tracking approach for text line segmentation in handwritten documents 

    Setitra, Insaf; Hadjadj, Zineb; Meziane, Abdelkrim
    In : Rapports de recherche internes, (CERIST, Alger, 2017-02-24)
    Tracking of objects in videos consists of giving a label to the same object moving in different frames. This labeling is performed by predicting position of the object given its set of features observed in previous frames. In this work, we apply the same rationale by considering each connected component in the manuscript ...
  • Survey and comparative study of Business process models repositories 

    Khider, Hadjer; Benna, Amel
    In : Rapports de recherche internes, (CERIST, Alger, 2016-12-21)
    A Business Process (BP) modeling is a complicated task, time-consuming, and error prone task. One of the promising solutions to overcome these challenges is by the reuse of BP models, consequently, it is important to provide a BP models repository to store thousands of BP models for business actors (e.g. analysts, modelers, ...

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