Now showing items 1-20 of 63

    • A Green Strategy for Federated and Heterogeneous Clouds with Communicating Workloads 

      Mateo Fornés, Jordi; Vilaplana Mayoral, Jordi; Solsona Tehàs, Francesc; Pla Aragonés, Lluís Miquel; Lérida Monsó, Josep Lluís (Hindawi Publishing Corporation, 2014-07)
      Providers of cloud environments must tackle the challenge of configuring their system to provide maximal performance while minimizing the cost of resources used. However, at the same time, they must guarantee an SLA ...
    • A Machine-Learning Model for Lung Age Forecasting by Analyzing Exhalations 

      Pifarré Montalà, Marc; Tena, Alberto; Clarià Sancho, Francisco; Solsona Tehàs, Francesc; Vilaplana Mayoral, Jordi; Benavides, Arnau; Mas, Lluis; Abella i Pons, Francesc (MDPI, 2022)
      Spirometers are important devices for following up patients with respiratory diseases. These are mainly located only at hospitals, with all the disadvantages that this can entail. This limits their use and consequently, ...
    • A production planning model considering uncertain demand using two-stage stochastic programming in a fresh vegetable supply chain context 

      Mateo Fornés, Jordi; Pla Aragonés, Lluís Miquel; Solsona Tehàs, Francesc; Pagès Bernaus, 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 queuing theory model for cloud computing 

      Vilaplana Mayoral, Jordi; Solsona Tehàs, Francesc; Teixidó Torrelles, Ivan; Mateo Fornés, Jordi; Abella i Pons, Francesc; Rius Torrentó, Josep Maria (Springer Verlag, 2014-04)
      The ability to deliver guaranteed QoS (Quality of Service) is crucial for the commercial success of cloud platforms. This paper presents a model based on queuing theory to study computer service QoS in cloud computing. ...
    • A queuing theory model for fog computing 

      Mas, Lluis; Vilaplana Mayoral, Jordi; Mateo Fornés, Jordi; Solsona Tehàs, Francesc (Springer, 2022)
      Under many scenarios where resources may be scarce or a good Quality of Service is a requirement, appropriately sizing components and devices is one of the main challenges. New scenarios, such as IoT, mobile cloud computing, ...
    • A Space and Time Sharing Scheduling Approach for PVM Non-dedicated Clusters 

      Hanzich, Mauricio; Giné, Francesc; Hernández Budé, 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 ...
    • A user-friendly web portal for T-Coffee on supercomputers 

      Rius Torrentó, Josep Maria; Cores Prado, Fernando; Solsona Tehàs, Francesc; Hemert, Jano van; Koetsier, Jos; Notredame, Cedric (BioMed Central, 2011)
      Background: Parallel T-Coffee (PTC) was the first parallel implementation of the T-Coffee multiple sequence alignment tool. It is based on MPI and RMA mechanisms. Its purpose is to reduce the execution time of the large-scale ...
    • 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 ...
    • Adjusting Time Slices to Apply Coscheduling Techniques in a non-dedicated NOW 

      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 time-sharing NOW and efficiently scheduling them by means of coscheduling mechanisms. In such systems, the proper length of the time slice ...
    • An SLA and power-saving scheduling consolidation strategy for shared and heterogeneous clouds 

      Vilaplana Mayoral, Jordi; Mateo Fornés, Jordi; Teixidó Torrelles, Ivan; Solsona Tehàs, Francesc; Giné, Francesc; Roig Mateu, Concepció (Springer Verlag, 2015)
      This paper presents a power-aware scheduling policy algorithm of Virtual Machines into nodes called Green Cloud (GreenC) for Heterogeneous cloud systems. GreenC takes into account optimal assignments according to physical ...
    • Analyzing locality over a P2P computing architecture 

      Castellà, Damià; Giné, Francesc; Solsona Tehàs, Francesc; Lérida Monsó, Josep Lluís (Elsevier, 2013)
      A characteristic of Peer-to-Peer (P2P) computing networks is their huge number of different computational resources scattered across the Internet. Gathering peers into markets according to their multi-attribute computational ...
    • Automated detection of COVID-19 cough 

      Tena, Alberto; Clarià Sancho, Francisco; Solsona Tehàs, Francesc (Elsevier, 2022)
      Easy detection of COVID-19 is a challenge. Quick biological tests do not give enough accuracy. Success in the fight against new outbreaks depends not only on the efficiency of the tests used, but also on the cost, time ...
    • Biblio-MetReS for user-friendly mining of genes and biological processes in scientific documents 

      Usié Chimenos, Anabel; Karathia, Hiren; Teixidó Torrelles, Ivan; Alves, Rui; Solsona Tehàs, Francesc (PeerJ, 2014)
      One way to initiate the reconstruction of molecular circuits is by using automated text-mining techniques. Developing more efficient methods for such reconstruction is a topic of active research, and those methods are ...
    • Biblio-MetReS: A bibliometric network reconstruction application and server 

      Usié Chimenos, Anabel; Karathia, Hiren; Teixidó Torrelles, Ivan; Valls Marsal, Joan; Faus i Torà, Xavier; Alves, Rui; Solsona Tehàs, Francesc (BioMed Central, 2011)
      Background: Reconstruction of genes and/or protein networks from automated analysis of the literature is one of the current targets of text mining in biomedical research. Some user-friendly tools already perform this ...
    • CART, a Decision SLA Model for SaaS Providers to Keep QoS Regarding Availability and Performance 

      Mateo Fornés, Jordi; Solsona Tehàs, Francesc; Vilaplana Mayoral, Jordi; Teixidó Torrelles, Ivan; Rius Torrentó, Josep Maria (IEEE, 2019)
      Cloud systems are becoming a powerful tool for business. The evidence of the advantages of offering infrastructure as a service (IaaS), platform as a service (PaaS), or software as a service (SaaS) is overwhelming. ...
    • Characterization of the CPAP-treated patient population in Catalonia 

      Turino, Cecilia; Bertran, Sandra; Gavaldá, Ricard; Teixidó Torrelles, Ivan; Woehrle, Holger; Rué i Monné, Montserrat; Solsona Tehàs, Francesc; Escarrabill, Joan; Colls, Cristina; García-Altés, Anna; Batlle Garcia, Jordi de; Sánchez de la Torre, Manuel; Barbé Illa, Ferran (Public Library of Science, 2017)
      There are different phenotypes of obstructive sleep apnoea (OSA), many of which have not been characterised. Identification of these different phenotypes is important in defining prognosis and guiding the therapeutic ...
    • CheNER: a tool for the identification of chemical entities and their classes in biomedical literature 

      Solsona Tehàs, Francesc; Alves, Rui; Usié Chimenos, Anabel; Cruz, Joaquim; Comas, Jorge (BioMed Central, 2015)
      Background: Small chemical molecules regulate biological processes at the molecular level. Those molecules are often involved in causing or treating pathological states. Automatically identifying such molecules in biomedical ...
    • CheNER: Chemical Named Entity Recognizer 

      Usié Chimenos, Anabel; Alves, Rui; Solsona Tehàs, Francesc; Vázquez, Miguel; Valéncia, Alfonso (Oxford University Press, 2013)
      Motivation: Chemical named entity recognition is used to automatically identify mentions to chemical compounds in text, and is the basis for more elaborate information extraction. However, only a small number of ...
    • CISNE-P: a global scheduling oriented to NOW environments 

      Torchinsky, Matias; Hanzich, Mauricio; Hernández Budé, Porfidio; Luque, Emilio; Giné, Francesc; Solsona Tehàs, Francesc; Lérida Monsó, Josep Lluís (Iberoamerican Science & Technology Education Consortium, 2007)
      In this work, we present an integral scheduling system for non-dedicated clusters, termed CISNE-P, which ensures the performance required by the local applications, while simultaneously allocating cluster resources to ...
    • CISNE: A New Integral Approach for Scheduling Parallel Applications on Non-dedicated Clusters 

      Hanzich, Mauricio; Giné, Francesc; Hernández Budé, 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 ...