Recent Submissions

  • Computer-assisted initial diagnosis of rare diseases 

    Alves, Rui; Piñol, Marc; Vilaplana, Jordi; Teixidó Torrelles, Ivan; Cruz, Joaquim; Comas, Jorge; Vilaprinyo Terré, Ester; Sorribas Tello, Albert; Solsona Tehàs, Francesc (PeerJ, 2016)
    Introduction. Most documented rare diseases have genetic origin. Because of their low individual frequency, an initial diagnosis based on phenotypic symptoms is not always easy, as practitioners might never have been exposed ...
  • Dynamic Distributed Collaborative Merging Policy to Optimize the Multicasting Delivery Scheme 

    Yang, X.Y.; Hernández, Porfidio; Cores Prado, Fernando; Ripoll, A.; Suppi, R.; Luque, Emilio (Springer Verlag, 2005)
    The advance of Internet 2 and the proliferation of switches and routers with level three functionalities made the multicast one of the most feasible video streaming delivering techniques for the near future. Assuming ...
  • CISNE: A New Integral Approach for Scheduling Parallel Applications on Non-dedicated Clusters 

    Hanzich, Mauricio; Giné, Francesc; Hernández, Porfidio; Solsona Tehàs, Francesc; Luque, Emilio (Springer Verlag, 2005)
    Our main interest is oriented towards keeping both local and parallel jobs together in a non-dedicated cluster. In order to obtain some profits from the parallel applications, it is important to consider time and space ...
  • Supporting Caching and Mirroring in Distributed Video-on-Demand Architectures 

    Yang, X. Y.; Cores Prado, Fernando; Ripoll, A.; Hernandez, Porfidio; Qazzaz, B.; Suppi, R.; Luque, Emilio (Springer Verlag, 2004)
    Distributed Video-on-Demand (DVoD) systems are proposed as a solution to the limited streaming capacity and null scalability of centralized systems. In such full decentralized architectures with storage constraints, ...
  • Incentive mechanism for scheduling jobs in a peer-to-peer computing system 

    Rius Torrentó, Josep Maria; Estrada, Soraya; Cores Prado, Fernando; Solsona Tehàs, Francesc (Elsevier, 2012)
    Peer-to-Peer (P2P) computing, the harnessing of idle CPU cycles through the Internet, offers new research challenges in distributed computing. One of the most critical aspects in the design of P2P systems is the development ...
  • A New Task Graph Model for Mapping Message Passing Applications 

    Roig Mateu, Concepció; Ripoll, A.; Guirado Fernández, Fernando (Institute of Electrical and Electronics Engineers, 2007)
    The exploitation of parallelism in a message passing platform implies a previous modeling phase of the parallel application as a task graph, which properly reflects its temporal behavior. In this paper, we analyze the ...
  • Dealing with Memory Constraints in a Non-Dedicated Linux Cluster 

    Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (SAGE, 2003)
    Our research is focused on keeping both local and parallel jobs together in a non-dedicated cluster and scheduling them efficiently. In such a system, memory becomes a critical resource for both kinds of job. Thus, the ...
  • Minimizing Paging Tradeoffs Applying Coscheduling Techniques in a Linux Cluster 

    Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2003)
    Our research is focused on keeping both local and parallel jobs together in a non-dedicated cluster or NOW (Network of Workstations) and efficiently scheduling them by means of coscheduling mechanisms. The performance ...
  • Predicting the Best Mapping for Efficient Exploitation of Task and Data Parallelism 

    Guirado Fernández, Fernando; Ripoll, A.; Roig Mateu, Concepció; Yuan, X.; Luque, Emilio (Springer Verlag, 2003)
    The detection and exploitation of different kinds of parallelism, task parallelism and data parallelism often leads to efficient parallel programs. This paper presents a simulation environment to predict the best mapping ...
  • Exploiting Traffic Balancing and Multicast Efficiency in Distributed Video-on-Demand Architectures 

    Cores Prado, Fernando; Ripoll, A.; Qazzaz, Bahjat; Suppi, Remo; Yang, Xiaoyuan; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2003)
    Distributed Video-on-Demand (DVoD) systems are proposed as a solution to the limited streaming capacity and null scalability of centralized systems. In a previous work, we proposed a fully distributed large-scale ...
  • Multiprogramming Level of PVM Jobs in a Non-dedicated Linux NOW 

    Giné, Francesc; Solsona Tehàs, Francesc; Barrientos, Jesus; Hernandez, Porfidio; Hanzich, Mauricio; Luque, Emilio (Springer Verlag, 2003)
    Our research is focussed on keeping both local and PVM jobs together in a time-sharing Network Of Workstations (NOW) and efficiently scheduling them by means of dynamic coscheduling mechanisms. In this framework, we ...
  • Cooperating Coscheduling in a Non-dedicated Cluster 

    Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2003)
    Our research is focussed on keeping both local and parallel jobs together in a time-sharing NOW. In such systems, new scheduling approaches are needed to allocate the underloaded resources among parallel jobs. In this ...
  • Implementing and Analysing an Effective Explicit Coscheduling Algorithm on a NOW 

    Solsona Tehàs, Francesc; Giné, Francesc; Molina, Fermín; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2001)
    Networks of workstations (NOWs) have become important and cost-effective parallel platforms for scientific computations. In practice, a NOW system is heterogeneous and non-dedicated. These two unique factors make ...
  • A Space and Time Sharing Scheduling Approach for PVM Non-dedicated Clusters 

    Hanzich, Mauricio; Giné, Francesc; Hernández, Porfidio; Solsona Tehàs, Francesc; Luque, Emilio (Springer Verlag, 2005)
    Wasted resources are a common reality in open laboratories in any University today [2]. Our aim is to take advantage of those resources to do parallel computation without disturbing the local tasks excessively. In order ...
  • Providing VCR in a Distributed Client Collaborative Multicast Video Delivery Scheme 

    Yang, X.Y.; Hernández, P.; Cores Prado, Fernando; Ripoll, A.; Suppi, R.; Luque, E. (Springer Verlag, 2006)
    In order to design a high scalable video delivery technology for VoD systems, two representative solutions have been developed: multicast and P2P. Each of them has limitations when it has to implement VCR interactions ...
  • Using On-the-Fly Simulation for Estimating the Turnaround Time on Non-dedicated Clusters 

    Hanzich, Mauricio; Lérida Monsó, Josep Lluís; Torchinsky, Matías; Giné, Francesc; Hernández, Porfidio; Luque, Emilio (Springer Verlag, 2006)
    The computation capacity of the workstations of an open laboratory in almost every university is enough to execute not only the local workload but some distributed computation. Unfortunately, the local workload introduces ...
  • Adjusting the Lengths of Time Slices when Scheduling PVM Jobs with High Memory Requirements 

    Giné, Francesc; Solsona Tehàs, Francesc; Hernandez, Porfidio; Luque, Emilio (Springer Verlag, 2002)
    Our research is focussed on keeping both local and parallel jobs together in a non-dedicated cluster and scheduling them efficiently. In such systems, the overflow of the physical memory into the virtual memory usually ...
  • A production planning model considering uncertain demand using two-stage stochastic programming in a fresh vegetable supply chain context 

    Mateo, Jordi; Pla Aragonés, Lluís Miquel; Solsona Tehàs, Francesc; Pagès, Adela (SpringerOpen, 2016-06-22)
    Production planning models are achieving more interest for being used in the primary sector of the economy. The proposed model relies on the formulation of a location model representing a set of farms susceptible of being ...
  • A Secure Elliptic Curve-Based RFID Protocol 

    Martínez Rodríguez, Santi; Valls Marsal, Magda; Roig Mateu, Concepció; Miret, Josep M. (Josep Maria); Giné, Francesc (Springer Verlag, 2009)
    Nowadays, the use of Radio Frequency Identification (RFID) systems in industry and stores has increased. Nevertheless, some of these systems present privacy problems that may discourage potential users. Hence, high ...
  • DynaPeer: A Dynamic Peer-to-Peer Based Delivery Scheme for VoD Systems 

    Souza, Leandro; Cores Prado, Fernando; Yang, Xiaoyuan; Ripoll, A. (Springer Verlag, 2007)
    Supporting Video-on-Demand (VoD) services in Internet is still a challenging issue due to high bandwidth requirement of multimedia contents and additional constraints imposed by such environment: higher delays and jitter, ...

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