Exploració per tema "Distributed systems"

Ara es mostren els items 1-20 de 68

    • A catallactic market for data mining services. 

      Joita, Liviu; Rana, Omer; Freitag, Fèlix; Chao, Isaac; Chacín Martínez, Pablo; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar (2007)
      Article
      Accés obert
      We describe a Grid market for exchanging data mining services based on the Catallactic market mechanism proposed by von Hayek. This market mechanism allows selection between multiple instances of services based on operations ...

    • A demand based algorithm for rapid updating of replicas 

      Acosta Elías, J. Jesús; Navarro Moldes, Leandro (IEEE, 2002)
      Text en actes de congrés
      Accés obert
      In many Internet scale replicated system, not all replicas can be dealt with in the same way, since some will be in greater demand than others. In the case of weak consistency algorithms, we have observed that updating first ...

    • A democratic Grid: collaboration, sharing and computing for everyone 

      Krishnaswamy, Ruby; Navarro Moldes, Leandro; Vlassov, Vladimir (IOS Press, 2008-10)
      Comunicació de congrés
      Accés obert
      This paper presents an integrated vision, architecture, middleware and applications of a public and large scale Grid for everyone: supporting collaboration for groups of people who can interact and share work and share or ...

    • A distributed auctioneer for resource allocation in decentralized systems 

      Khan, Muhammad Amin; Vilaça, Xavier; Rodrigues, Luís; Freitag, Fèlix (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      In decentralized systems, nodes often need to coordinate to access shared resources in a fair manner. One approach to perform such arbitration is to rely on auction mechanisms. Although there is an extensive literature ...

    • A dynamic periodicity detector: application to speedup computation 

      Freitag, Fèlix; Corbalán González, Julita; Labarta Mancho, Jesús José (IEEE, 2001-04)
      Text en actes de congrés
      Accés obert
      We propose a dynamic periodicity detector (DPD) for the estimation of periodicities in data series obtained from the execution of applications. We analyze the algorithm used by the periodicity detector and its performance ...

    • A Hayekian self-organization approach to service allocation in computing systems 

      Eymann, Torsten; Reinicke, Michael; Freitag, Fèlix; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar; Artigas Vidal, Pau (Elsevier, 2005)
      Article
      Accés obert
      Future ‘on-demand’ computing systems, often depicted as potentially large scale and complex Service-Oriented Architectures, will need innovative management approaches for controlling and matching services demand and supply. ...

    • A methodology for user-oriented scalability analysis. 

      Royo Vallés, María Dolores; Valero García, Miguel; González Colás, Antonio María; Mari Vila, Carme (IEEE, 1997-07-14)
      Text en actes de congrés
      Accés obert
      Scalability analysis provides information about the effectiveness of increasing the number of resources of a parallel system. Several methods have been proposed which use different approaches to provide this information. ...

    • A scalable distributed autonomy system for fractionated satellite missions 

      Rodrigo Muñoz, Santiago (Universitat Politècnica de Catalunya, 2016-02-11)
      Treball Final de Grau
      Accés obert
      Current trends in space systems are towards the design of autonomous spacecraft that are capable to generate their own plans of action based on system constraints, on-board data analysis and mission goals set by ground ...

    • A survey on the distributed computing stack 

      Ramón Cortés, Cristian; Alvarez Vecino, Pol; Lordan Gomis, Francesc; Álvarez Cid-Fuentes, Javier; Ejarque Artigas, Jorge; Badia Sala, Rosa Maria (Elsevier, 2021-11)
      Article
      Accés obert
      In this paper, we review the background and the state of the art of the Distributed Computing software stack. We aim to provide the readers with a comprehensive overview of this area by supplying a detailed big-picture of ...

    • A trace-scaling agent for parallel application tracing. 

      Freitag, Fèlix; Caubet Serrabou, Jordi; Labarta Mancho, Jesús José (IEEE, 2002)
      Text en actes de congrés
      Accés obert
      Tracing and performance analysis tools are an important component in the development of high performance applications. Tracing parallel programs with current tracing tools, however, easily leads to large trace files with ...

    • A two-stage multi-criteria optimization method for service placement in decentralized edge micro-clouds 

      Panadero, Javier; Selimi, Mennan; Calvet Liñán, Laura; Marques Puig, Joan Manuel; Freitag, Fèlix (Elsevier, 2021-08)
      Article
      Accés obert
      Community networks are becoming increasingly popular due to the growing demand for network connectivity in both rural and urban areas. Community networks are owned and managed at the edge by volunteers. Their irregular ...

    • Active yellow pages: a pipelined resource management architecture for wide-area network computing 

      Royo Vallés, María Dolores; Díaz de Cerio Ripalda, Luis Manuel; Kapadia, Nirav H.; Fortes, José Antonio Bautista (IEEE, 2001-07-08)
      Text en actes de congrés
      Accés obert
      This paper describes a novel, pipelined resource management architecture for computational grids. The design is based on two key realizations. One is that resource management involves a sequence of tasks that is best ...

    • Analysis and optimization of question answering systems 

      Domínguez Sal, David (Universitat Politècnica de Catalunya, 2010-04-23)
      Tesi
      Accés obert

    • Applying Internet random early detection strategies to scheduling in grid environments 

      Willmott, Steven Nicolás; Brugnoli, Manuel; Heymann, Elisa; Hurley, Paul; Senar, Miquel A. (2007-09)
      Report de recerca
      Accés obert
      Resource Allocation in Grid environments to date is generally carried out under the assumption that there is one primary scheduling system scheduling jobs. However, as environments tend towards larger open “utility” Grids ...

    • Assessing a distributed market infrastructure for economics-based service selection 

      Brunner, René; Chao, Isaac; Chacín Martínez, Pablo; Freitag, Fèlix; Navarro Moldes, Leandro; Ardáiz Villanueva, Óscar; Joita, Liviu; Rana, Omer (Springer, 2007)
      Comunicació de congrés
      Accés obert
      Service selection is an important issue for market-oriented Grid infrastructures. However, few results have been published on the use and evaluation of market models in deployed prototypes, making it difficult to assess ...

    • Benefits of a Fog-to-Cloud Approach in Proximity Marketing 

      Salis, Antonio; Mancini, Glauco; Bulla, Roberto; Cocco, Paolo; Lezzi, Daniele; Lordan, Francesc (Springer, 2018-12-31)
      Comunicació de congrés
      Accés obert
      The EC H2020 mF2C Project is working to the development of a software framework that enables the orchestration of resources and communication at fog level, as an extension of cloud computing and interacting with the IoT. ...

    • Better cloud storage usability through name space virtualization 

      Artiaga Amouroux, Ernest; Marti Fraiz, Jonathan; Cortés, Toni (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Cloud-based storage synchronization and backup services are widely available. Nevertheless, their usability is often rigid and coarse-grained: for example, most services synchronize specific whole directories, but are not ...

    • Building a flexible web caching system. 

      Sosa Sosa, Víctor Jesús; González Serna, Juan Gabriel; Navarro Moldes, Leandro (IEEE, 2003-09-08)
      Text en actes de congrés
      Accés obert
      Web caching is a technology that has demonstrated to improve traffic on the Internet. To find out how to implement a Web caching architecture that assures improvements is not an easy task. The problem is more difficult ...

    • Búsqueda de equilibrios de Nash en juegos poblacionales bajo información parcial y su aplicación en juegos de congestión 

      Martínez Piazuelo, Juan Pablo; Ocampo-Martínez, Carlos; Quijano Silva, Nicanor (Universidade da Coruña. Servizo de Publicacións, 2023)
      Comunicació de congrés
      Accés obert
      En este artículo, consideramos el marco de dinámicas evolutivas y juegos poblacionales. Para una clase de dinámicas evolutivas y una familia de juegos poblacionales contractivos, desarrollamos un método novedoso para la ...

    • CatNet: Catallactic mechanisms for service control and resource allocation in large-scale application-layer networks 

      Ardáiz Villanueva, Óscar; Freitag, Fèlix; Navarro Moldes, Leandro; Eymann, Torsten; Reinicke, Michael (IEEE, 2002-05-21)
      Text en actes de congrés
      Accés obert
      Collaborative tools based on the Web/Internet infrastructure such as E-mail, discussion groups, video/audio conferencing and virtual campuses have been proposed and implemented in many distance learning scenarios. Grids ...