Exploració per autor "Xhafa Xhafa, Fatos"Més informacióMés informació

Ara es mostren els items 249-268 de 403

    • L-EncDB: a lightweight framework for privacy-preserving data queries in cloud computing 

      Li, Jin; Liu, Zheli; Chen, Xiaofeng; Xhafa Xhafa, Fatos; Tan, xiao; Wong, Duncan S. (2015-05-01)
      Article
      Accés obert
      With the advent of cloud computing, individuals and organizations have become interested in moving their databases from local to remote cloud servers. However, data owners and cloud service providers are not in the same ...

    • Learning structure and schemas from heterogeneous domains in networked systems: a survey 

      Biba, Marenglen; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      The rapidly growing amount of available digital documents of various formats and the possibility to access these through internet-based technologies in distributed environments, have led to the necessity to develop solid ...

    • Locals search algorithms for efficient router nodes placement in Wireless Mesh Networks 

      Xhafa Xhafa, Fatos; Sánchez Lopez, Christian; Barolli, Leonard (2009)
      Text en actes de congrés
      Accés obert
      Wireless Mesh Networks (WMNs) are an important networking infrastructure for providing cost-efficient broadband wireless connectivity to a group of users. WMNs are increasingly being used in urban areas, metropolitan and ...

    • MALLBA: a library of skeletons for combinatorial optimisation 

      Alba, E; Almeida, F; Blesa Aguilera, Maria Josep; Cabeza, J; Cotta, C; Díaz, M; Dorta, I; Gabarró Vallès, Joaquim; León, C; Luna Garcia, Jesus; Moreno Boronat, Lidia Ana; Pablos, C; Petit Silvestre, Jordi; Rojas Espinosa, Alfonso; Xhafa Xhafa, Fatos (2002-02)
      Report de recerca
      Accés obert
      The MALLBA project tackles the resolution of combinatorial optimization problems using algorithmic skeletons implemented in C++. MALLBA offers three families of generic resolution methods: exact, heuristic and hybrid. ...

    • MALLBA: towards a combinatorial optimization library for geographically distributed systems 

      Alba, E.; Almeida, F.; Blesa Aguilera, Maria Josep; Cotta, C.; Díaz, M.; Dorta, I.; Gabarró Vallès, Joaquim; González, J.; León, C.; Moreno de Antonio, Luz Marina; Petit Silvestre, Jordi; Roda, J.; Rojas, A.; Xhafa Xhafa, Fatos (2001-06)
      Report de recerca
      Accés obert
      Problems arising in different areas such as numerical methods, simulation or optimization can be efficiently solved by parallel super-computing. However, it is not always possible to buy and maintain parallel super-computers. ...

    • Matching IoT devices to the fog service providers: a mechanism design perspective 

      Bandyopadhyay, Anjan; Kumar Singh, Vikash; Mukhopadhyay, Sajal; Rai, Ujjwa; Xhafa Xhafa, Fatos; Krause, Paul (Multidisciplinary Digital Publishing Institute (MDPI), 2020-12-01)
      Article
      Accés obert
      In the Internet of Things (IoT) + Fog + Cloud architecture, with the unprecedented growth of IoT devices, one of the challenging issues that needs to be tackled is to allocate Fog service providers (FSPs) to IoT devices, ...

    • Maximum node degree mobility metric for wireless ad hoc networks 

      Doci, Arta; Springer, William; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      Mobility has a significant impact on the ad hoc network protocol performance. Mainly, the protocol performance has been evaluated in simulations and using synthetic mobility models, which have two main drawbacks: (a) they ...

    • Meta-scheduling issues in interoperable HPCs, grids and clouds 

      Bessis, Nik; Sotiriadis, Stelios; Xhafa Xhafa, Fatos; Pop, Florin; Cristea, Valentin (2012)
      Article
      Accés obert
      Over the last years, interoperability among resources has been emerged as one of the most challenging research topics. However, the commonality of the complexity of the architectures (e.g., heterogeneity) and the targets ...

    • Mission operations scheduling: complexity and resolution methods 

      Xhafa Xhafa, Fatos; Sun, Junzi; Barolli, Admir; Takizawa, Makoto (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Recently there has been a growing interest in mission operations scheduling problem. The problem, in a variety of formulations, arises in management of satellite/space missions requiring efficient allocation of user requests ...

    • MixMobGen: a realistic mixed traffic mobility generator for ad hoc network simulations 

      Doci, Arta; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Text en actes de congrés
      Accés obert
      Recently, performance evaluation of ad hoc network protocols is done using realistic mobility and traffic models, thus improving the validity and credibility of wireless simulation studies. In this paper we design and ...

    • Mobility effects of wireless multi-hop networks in indoor scenarios 

      Ikeda, Makoto; Hiyama, Masahiro; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      A Mobile Ad hoc Network (MANET) is a collection of wireless mobile terminals that are able to dynamically form a temporary network without any aid from fixed infrastructure or centralized administration. In recent years, ...

    • Mobility effects on the performance of mobile ad hoc networks 

      Ikeda, Makoto; Hiyama, Masahiro; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      In this paper, we present the implementation and analysis of our implemented testbed considering the Optimized Link State Routing (OLSR) protocol for Mobile Ad hoc Networks (MANET). We investigate the effect of mobility ...

    • Modelling of user requirements and behaviors in computational grids 

      Kolodziej, Joana; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      In traditional distributed computing systems a few user types are found having rather

    • Modern approaches to modeling user requirements on resource and task allocation in hierarchical computational grids 

      Kolodziej, Joanna; Xhafa Xhafa, Fatos (2011-06)
      Article
      Accés obert

    • MOMC: Multi-objective and Multi-constrained scheduling algorithm of many tasks in Hadoop 

      Voicu, Cristiana; Pop, Florin; Dobre, Ciprian M.; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés obert
      Even though scheduling in a distributed system was debated for many years, the platforms and the job types are changing everyday. This is why we need special algorithms based on new applications requirements, especially ...

    • MOMTH: multi-objective scheduling algorithm of many tasks in Hadoop 

      Nita, Mihaela-Catalina; Pop, Florin; Voicu, Cristiana; Dobre, Ciprian M.; Xhafa Xhafa, Fatos (Kluwer Academic Publishers, 2015-09-01)
      Article
      Accés obert
      A real challenge sits in front of the business solutions these days, in the context of the big amount of data generated by complex software applications: efficiently using the given limited resources to accomplish specific ...

    • Monitoring and detection of agitation in dementia: towards real-time and big-data solutions 

      Moore, Philip R.; Xhafa Xhafa, Fatos; Barolli, Leonard; Thomas, Andrew (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés obert
      The changing demographic profile of the population has potentially challenging social, geopolitical, and financial consequences for individuals, families, the wider society, and governments globally. The demographic change ...

    • MPLS traffic engineering in satellite networks 

      Durresi, Arjan; Durresi, Mimoza; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Text en actes de congrés
      Accés obert
      Broadband satellite constellation networks will be required to carry all types of IP traffic, real time interactive traffic as well as non-real time traffic, warranting the need for appropriate QoS for these different ...

    • Multi-agent collaborative planning in smart environments 

      Amato, Flora; Mazzocca, Nicola; Moscato, Francesco; Xhafa Xhafa, Fatos (Springer, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Nowadays Smart systems have become commonplace in our lives: domotics, social networks, automotive, smart application, virtual reality are having each time more and more users. One recent example of smart spaces can be ...

    • Multi-level orchestration of cloud services in OrCS 

      Amato, Flora; Moscato, Francesco; Xhafa Xhafa, Fatos (Springer, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Orchestration is a well known topic in old web services literature. Anyway, what Orchestration means for Cloud services is not yet Clear. Services, especially at lower layers of Cloud Architecture, are complex: Scientific ...