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Ara es mostren els items 202-221 de 403

    • Game-theoretic, market and meta-heuristics approaches for modelling scheduling and resource allocation in grid systems 

      Xhafa Xhafa, Fatos; Kolodziej, Joana (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      Task scheduling and resource allocation are the crucial issues in any large scale distributed system, such as Computational Grids (CGs). However, traditional computational models and resolution methods cannot effectively ...

    • Generation of game contents by social media analysis and MAS planning 

      Amato, Flora; Moscato, Francesco; Xhafa Xhafa, Fatos (Elsevier, 2019-11)
      Article
      Accés obert
      In the age of pervasive computing and social networks, it has become commonplace to retrieve opinions about digital contents in games. In the case of multi-player, open world gaming, in fact even in “old-school” single ...

    • Generic parallel implementations for Tabu Search 

      Blesa Aguilera, Maria Josep; Petit Silvestre, Jordi; Xhafa Xhafa, Fatos (2005-11)
      Report de recerca
      Accés obert
      Tabu Search (TS) is a meta-heuristic for solving combinatorial optimization problems. A review of existing implementations for TS reveals that, on the one hand, these implementations are ad hoc and, on the other hand, most ...

    • Genetic algorithm based schedulers for grid computing systems 

      Xhafa Xhafa, Fatos; Carretero Casado, Javier Sebastián; Abraham, Ajith (2007-10)
      Article
      Accés obert
      In this paper we present Genetic Algorithms (GAs) based schedulers for efficiently allocating jobs to resources in a Grid system. Scheduling is a key problem in emergent computational systems, such as Grid and P2P, in order ...

    • Genetic algorithms for efficient placement of router nodes in wireless mesh networks 

      Xhafa Xhafa, Fatos; Sánchez Lopez, Christian; Barolli, Leonard (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
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      In Wireless Mesh Networks (WMNs) the meshing architecture, consisting of a grid of mesh routers, provides connectivity services to different mesh client nodes. The good performance and operability of WMNs largely depends ...

    • Genetic algorithms for node placement in WMNs: effect of changes in population size and number of generations 

      Oda, Tetsuya; Barolli, Admir; Spaho, Evjola; Barolli, Leonard; Xhafa Xhafa, Fatos; Iwashige, Jiro (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Genetic algorithms for satellite scheduling problems 

      Xhafa Xhafa, Fatos; Sun, Junzi; Barolli, Admir; Biberaj, Alexander; Barolli, Leonard (HINDAWI, 2012)
      Article
      Accés obert
      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 ...

    • Geometrical and topological approaches to big data 

      Snasel, Vaclav; Nowaková, Jana; Xhafa Xhafa, Fatos; Barolli, Leonard (Elsevier, 2016-06-29)
      Article
      Accés obert
      Modern data science uses topological methods to find the structural features of data sets before further supervised or unsupervised analysis. Geometry and topology are very natural tools for analysing massive amounts of ...

    • Grid and P2P middleware for scientific computing systems 

      Xhafa Xhafa, Fatos; Pllana, Sabri; Barolli, Leonard (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      Grid and P2P systems have achieved a notable success in the domain of scientific and engineering applications, which commonly demand considerable amounts of computational resources. However, Grid and P2P systems remain ...

    • Gridifying IBM's generic log adapter to speed-up the processing of log data 

      Paniagua, Claudi; Xhafa Xhafa, Fatos; Daradoumis, Thanasis (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Text en actes de congrés
      Accés obert
      Problem determination in today's computing environments consumes between 30 and 70% of an organization's IT resources and represents from one third to one half of their total cost of ownership. The first step to cutting ...

    • HAP: a heterogeneous ad hoc protocol 

      Doci, Arta; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Text en actes de congrés
      Accés obert
      Ad hoc wireless networks are becoming an important infrastructure for developing networking applications due to their decentralized nature, improved scalability as compared to wireless managed networks, minimal configuration ...

    • Hiring expert consultants in e-healthcare: an analytics-based two sided matching approach 

      Kumar Singh, Vikash; Mukhopadhyay, Sajal; Xhafa Xhafa, Fatos; Sharma, Aniruddh; Roy, Arpan (2018-11)
      Article
      Accés obert
      Very often in some censorious healthcare scenario, there may be a need to have some expert consultancies (especially by doctors) that are not available in-house to the hospitals. Earlier, this interesting healthcare scenario ...

    • Hybrid algorithms for independent batch scheduling in grids 

      Xhafa Xhafa, Fatos; Kolodziej, Joanna; Barolli, Leonard; Kolici, Vladi; Miho, Rozeta; Takizawa, Makoto (2012)
      Article
      Accés obert
      Grid computing has emerged as a wide area distributed paradigm for solving large-scale problems in science, engineering, etc. and is known as the family of eScience grid-enabled applications. Computing planning of incoming ...

    • Hybrid performance modeling and prediction of large-scale computing systems 

      Pllana, Sabri; Benkner, Siegfried; Xhafa Xhafa, Fatos; Barolli, Leonard (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Text en actes de congrés
      Accés obert
      Performance is a key feature of large-scale computing systems. However, the achieved performance when a certain program is executed is significantly lower than the maximal theoretical performance of the large-scale computing ...

    • Identity based proxy re-encryption scheme (IBPRE+) for secure cloud data sharing 

      Wang, Xu An; Xhafa Xhafa, Fatos; Zheng, Zhiheng; Nie, Jinting (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      In proxy re-encryption (PRE), a proxy with re-encryption keys can transfer aciphertext computed under Alice's public key into a new one, which can be decrypted by Bob only with his secret key. Recently, Wang et al. introduced ...

    • Immediate mode scheduling of independent jobs in computational grids 

      Xhafa Xhafa, Fatos; Barolli, Leonard; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Text en actes de congrés
      Accés obert
      With the emerging paradigm of grid computing and the development of grid infrastructures, grid-based applications are becoming a common approach for solving many complex, large-scale problems in science and engineering. ...

    • Impact of mobile event movement on the performance of wireless sensor networks 

      Yang, Tao; Barolli, Leonard; Mino, Gjergji; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
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      In this paper, we investigate how the sensor network performs in the case when the event moves with special movement path. We compare the simulation results for four scenarios: when the event is stationary, moving randomly, ...

    • Impact of mobile sink for wireless sensor networks considering different radio models and performance metrics 

      Yang, Tao; Mino, Gjergji; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      In this work, we investigate how WSN performs in the case when sink node moves using different radio models and metrics. We consider routing efficiency, delay and number of received packet metrics to evaluate the performance ...

    • Impact of mobile sink for wireless sensor networks considering goodput and routing efficiency metrics 

      Yang, Tao; Mino, Gjergji; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves ...

    • Impact of population size and number of generations on the performance of dense WMNs 

      Barolli, Admir; Oda, Tetsuya; Spaho, Evjola; Barolli, Leonard; Xhafa Xhafa, Fatos; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial