Ara es mostren els items 123-142 de 403

    • Data as a Service (DaaS) for sharing and processing of large data collections in the cloud 

      Terzo, Olivier; Ruiu, Pietro; Bucci, Enrico; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés obert
      Data as a Service (DaaS) is among the latest kind of services being investigated in the Cloud computing community. The main aim of DaaS is to overcome limitations of state-of-the-art approaches in data technologies, according ...
    • Data replication and synchronization in P2P collaborative systems 

      Xhafa Xhafa, Fatos (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Data replication and synchronization techniques have recently attracted a lot of attention of researchers from P2P computing community. Such techniques are fundamental to increase data availability, reliability and robustness ...
    • Deadline scheduling for aperiodic tasks in inter-cloud environments: a new approach to resource management 

      Pop, Florin; Dobre, Ciprian M.; Cristea, Valentin; Bessis, Nik; Xhafa Xhafa, Fatos; Barolli, Leonard (2015-05-01)
      Article
      Accés obert
      In the big data era, the speed of analytical processing is influenced by the storage and retrieval capabilities to handle large amounts of data. While the distributed crunching applications themselves can yield useful ...
    • Design and evaluation of a tabu search method for job scheduling in distributed enviorments 

      Xhafa Xhafa, Fatos; Carretero Casado, Javier Sebastián; Alba, Enrique; Dorronsoro, Bernabe (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      The efficient allocation of jobs to grid resources is indispensable for high performance grid-based applications. The scheduling problem is computationally hard even when there are no dependencies among jobs. Thus, we ...
    • Design and implementation of a JXTA-Overlay P2P system and smart box environment 

      Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos; Koyama, Akio; Durresi, Arjan; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      In this paper, we present the design and implementation of the JXTA-based e-Learning P2P system. We also show the design and implementation of a smart box environment that will be used for stimulating the learners to ...
    • Design and implementation of testbed using IoT and P2P technologies: improving reliability by a fuzzy-based approach 

      Liu, Yi; Yamada, Masafumi; Oda, Tetsuya; Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos (2017-08-23)
      Article
      Accés obert
      The internet of things (IoT) is a new type of internet application which enables the objects to be active participants with other members of the network. In P2P systems, each peer has to obtain information of other peers ...
    • Designing cloud-based electronic health record system with attribute-based encryption 

      Xhafa Xhafa, Fatos; Li, Jingwei; Zhao, Gansen; Li, Jin; Chen, Xiaofeng; Wong, Duncan S. (2015-05-01)
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      Accés obert
      With the development of cloud computing, electronic health record (EHR) system has appeared in the form of patient-centric, in which patients store their personal health records (PHRs) at a remote cloud server and selectively ...
    • Developing an information system for monitoring student's activity in online collaborative learning 

      Juan Pérez, Ángel Alejandro; Daradoumis, Thanasis; Faulín Fajardo, Francisco Javier; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      In this paper we address the issue of monitoring students’ and groups’ activity in online collaborative learning environments. This issue is especially important in the collaborative e-learning context, since an efficient ...
    • Distributed-based massive processing of activity logs for efficient user modeling in a Virtual Campus 

      Caballé Llobet, Santiago; Xhafa Xhafa, Fatos (Kluwer Academic Publishers, 2013-12)
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      Accés obert
      This paper reports on a multi-fold approach for the building of user models based on the identification of navigation patterns in a virtual campus, allowing for adapting the campus’ usability to the actual learners’ needs, ...
    • Edge and cluster computing as enabling infrastructure for Internet of Medical Things 

      Ritrovato, Pierluigi; Xhafa Xhafa, Fatos; Giordano, Andrea (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      Accés obert
      The continuous adoption of fitness and medical smart sensors are boosting the development of Internet of Medical Things (IoMT), reshaping and revolutionizing Healthcare. This digital transformation is paving the way to new ...
    • Edge computing and IoT analytics for agile optimization in intelligent transportation systems 

      Peyman, Mohammad; Copado, Pedro J.; Tordecilla Madera, Rafael David; Martins, Leandro do C.; Xhafa Xhafa, Fatos; Juan, Angel Alejandro (2021-10-01)
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      Accés obert
      With the emergence of fog and edge computing, new possibilities arise regarding the data-driven management of citizens’ mobility in smart cities. Internet of Things (IoT) analytics refers to the use of these technologies, ...
    • Effects of population size for location-aware node placement in WMNs: evaluation by a genetic algorithm--based approach 

      Oda, Tetsuya; Barolli, Admir; Spaho, Evjola; Barolli, Leonard; Xhafa Xhafa, Fatos; Younas, Muhammad (2014-02)
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      Accés obert
      Wireless mesh networks (WMNs) are cost-efficient networks that have the potential to serve as an infrastructure for advanced location-based services. Location service is a desired feature for WMNs to support location-oriented ...
    • Effects of sustained communication time on reliability of JXTA-Overlay P2P platform: a comparison study for two fuzzy-based systems 

      Liu, Yi; Sakamoto, Shinji; Barolli, Leonard; Spaho, Evjola; Ikeda, Makoto; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      In P2P systems, each peer has to obtain information of other peers and propagate the information to other peers through neighboring peers. Thus, it is important for each peer to have some number of neighbor peers. Moreover, ...
    • Efficient batch job scheduling in grids using cellular memetic algorithms 

      Xhafa Xhafa, Fatos; Alba, Enrique; Dorronsoro, Bernabé (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Text en actes de congrés
      Accés obert
      Computational grids are an important emerging paradigm for large-scale distributed computing. As grid systems become more wide-spread, techniques for efficiently exploiting the large amount of grid computing resources ...
    • Efficient controlling of end-devices in a JXTA-based P2P platform and its application to online learning 

      Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2009)
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      Accés obert
      The current Internet infrastructure is becoming each time more heterogeneous regarding computational resources. With the fast improvements in computational capabilities of devices, end-devices are becoming important ...
    • Efficient embedding of information and knowledge into CSCL applications 

      Caballé Llobet, Santiago; Daradoumis, Thanasis; Xhafa Xhafa, Fatos (Springer, 2007)
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      Accés obert
      This study aims to explore two crucial aspects of collaborative work and learning: the importance of enabling CSCL applications, on the one hand, to capture and structure the information generated by group activity and, ...
    • Efficient interaction analysis for an effective provision of knowledge about the discussion process to CSCL practices 

      Caballé Llobet, Santiago; Xhafa Xhafa, Fatos; Daradoumis, Thanasis; Abraham, Ajith (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      The discussion process plays an important social task in Computer-Supported Collaborative Learning (CSCL) where participants can discuss about the activity being performed, collaborate with each other through the exchange ...
    • Efficient parallel LAN/WAN algorithms for optimization: The mallba project 

      Alba, E.; Almeida, F.; Blesa Aguilera, Maria Josep; Cotta Porras, Carlos; Díaz, M.; Dorta, Isabel; Gabarró Vallès, Joaquim; León Hernández, Coromoto; Luque, G.; Petit Silvestre, Jordi; Rodríguez, C.; Rojas, A.; Xhafa Xhafa, Fatos (2006-06)
      Article
      Accés obert
      The mallba project tackles the resolution of combinatorial optimization problems using generic algorithmic skeletons implemented in C++. A skeleton in the mallba library implements an optimization method in one of the three ...
    • Efficient peer selection in P2P JXTA-based platforms 

      Xhafa Xhafa, Fatos; Daradoumis, Thanasis; Barolli, Leonard; Fernandez Correa, Raul; Caballé Llobet, Santiago; Kolici, Vladi (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      P2P systems are nowadays being used not only for file sharing but also for developing large-scale distributed applications. As an emerging paradigm for distributed computing, P2P systems are raising important issues as ...
    • Efficient privacy preserving predicate encryption with fine-grained searchable capability for cloud storage 

      Wang, Xu An; Xhafa Xhafa, Fatos; Cai, Weiyi; Ma, Jianfeng; Wei, Fushan (2016-06-01)
      Article
      Accés obert
      With the fast development in Cloud storage technologies and ever increasing use of Cloud data centres, data privacy and confidentiality has become a must. Indeed, Cloud data centres store each time more sensitive data such ...