Exploració per autor "Xhafa Xhafa, Fatos"
Ara es mostren els items 123-142 de 403
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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 obertData 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'editorialData 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 obertIn 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 obertThe 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 obertIn 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 obertThe 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)
Article
Accés obertWith 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 obertIn 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)
Article
Accés obertThis 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 obertThe 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)
Article
Accés obertWith 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)
Article
Accés obertWireless 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 obertIn 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 obertComputational 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 obertThe 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 obertThis 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)
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Accés obertThe 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 obertThe 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)
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Accés obertP2P 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 obertWith 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 ...