Envíos recientes

  • A weakly-supervised approach for discovering common objects in airport video surveillance footage 

    Castro Payan, Francisco Manuel; Delgado-Escaño, Rubén; Guil-Mata, Nicolas; Marín-Jiménez, Manuel J. (2019-07-22)
    Object detection in video is a relevant task in computer vision. Standard and current detectors are typically trained in a strongly supervised way, what requires a huge amount of labelled data. In contrast, in this paper ...
  • Solving Large-Scale Markov Decision Processes on Low-Power Heterogeneous Platforms 

    Constantinescu, Denisa-Andreea; Gonzalez-Navarro, Maria Angeles; Corbera, Francisco; Fernández-Madrigal, Juan Antonio; Asenjo-Plaza, Rafael (2019-07-11)
    Markov Decision Processes (MDPs) provide a framework for a machine to act autonomously and intelligently in environments where the effects of its actions are not deterministic. MDPs have numerous applications. We focus ...
  • Time Series Heterogeneous Co-execution on CPU+GPU 

    Romero, José Carlos; Gonzalez-Navarro, Maria Angeles; Rodriguez-Moreno, Andres; Asenjo-Plaza, Rafael; Cole, Murray (2019-07-10)
    Time series motif (similarities) and discords discovery is one of the most important and challenging problems nowadays for time series analytics. We use an algorithm called “scrimp” that excels in collecting the relevant ...
  • Reproducible SUmmation under HUB Format 

    Villalba-Moreno, Julio; Hormigo-Aguilar, Javier; Jaime Rodriguez, Francisco Jose
    Floating point reproducibility is a property claimed by programmers and end users. Half-Unit-Biased (HUB) is a new representation format in which the round to nearest is carried out by truncation, preventing any ...
  • Boosting Backward Search Throughput for FM-Index Using a Compressed Encoding 

    Herruzo Ruiz, José Manuel; Gonzalez-Navarro, Sonia; Ibáñez, Pablo; Viñals, Victor; Alastruey-Benedé, Jesús; [et al.] (2019-04-11)
    The rapid development of DNA sequencing technologies has demanded for com- pressed data structures supporting fast pattern matching queries. FM-index is a widely-used compressed data structure that also supports fast ...
  • Path planning for socially-aware humanoid robots 

    Constantinescu, Denisa-Andreea; Rohra, Aakash; Padir, Taskin; Kaeli, David; Rohra (2019-04-11)
    Designing efficient autonomous navigation systems for mobile robots involves consideration of the robotís environment while arriving at a systems architecture that trades off multiple constraints. We have architected a ...
  • Modelling vessel fleet composition for maintenance operations at offshore wind farms 

    Gutiérrez-Alcoba, Alejandro; Garcia, Inmaculada; Ortega López, Gloria; Hendrix, Eligius Maria Theodorus (2018-12-20)
    Chartering a vessel fleet to support maintenance operations at offshore wind farms (OWF's) constitutes one of the major costs of maintaining this type of installations. Literature describes deterministic optimization models ...
  • TMbarrier: speculative barriers using hardware transactional memory 

    Pedrero, Manuel; Gutiérrez Carrasco, Eladio D.; Plata, Oscar (2018-11-15)
    Barrier is a very common synchronization method used in parallel programming. Barriers are used typically to enforce a partial thread execution order, since there may be dependences between code sections before and after ...
  • Memoria Transaccional Software en Procesadores CPU+GPU Heterogéneos 

    Navarro, Angeles; Asenjo-Plaza, Rafael; Plata-Gonzalez, Oscar Guillermo; Villegas, Alejandro (2018-09-19)
    En los procesadores multi-núcleo, la memoria transaccional (TM) ha aparecido como una alternativa prometedora a las técnicas basadas en cerrojos para garantizar exclusión mutua y está siendo incluida como parte de procesadores ...
  • Explotando el nuevo módulo OpenCL de Intel TBB 

    Romero, Jose Carlos; Villegas, Alejandro; Navarro, Angeles; Rodriguez, Andres; Asenjo, Rafael (2018-07-20)
    Este artículo tiene como objetivo contribuir al desarrollo de la programación paralela trabajando en una de las herramientas desarrolladas por Intel: Intel Threading Building Blocks (Intel TBB). Hemos implementado una ...
  • A scheduling theory framework for GPU tasks efficient execution 

    Lázaro Muñoz, Antonio José; López Albelda, Bernabé; Gonzalez-Linares, Jose Maria; Guil-Mata, Nicolas (2018-07-16)
    Concurrent execution of tasks in GPUs can reduce the computation time of a workload by overlapping data transfer and execution commands. However it is difficult to implement an efficient run- time scheduler ...
  • A first step to accelerating fingerprint matching based on deformable minutiae clustering 

    Romero, Luis F.; Tabik, Siham; Sánchez, Andrés Jesús; Medina Pérez, Miguel Angel; Herrera, Francisco (2018-07-12)
    Fingerprint recognition is one of the most used biometric methods for authentication. The identification of a query fingerprint requires matching its minutiae against every minutiae of all the fingerprints of the database. ...
  • Acelerando la comparación de huellas dactilares basadas en agrupaciones deformables de minucias 

    Romero, Luis F.; Sánchez, Andrés Jesús; Tabik, Siham (2018-07-11)
    El reconocimiento de huellas dactilares es considerado como uno de los m´etodos de acreditaci´on biom´etrica m´as utilizado en la actualidad. La identificaci´on de una huella requiere realizar la comparaci´on de sus ...
  • Project based learning on industrial informatics: applying IoT to urban garden 

    Hormigo-Aguilar, Javier; Rodriguez-Moreno, Andres (2018-06-28)
    The fast evolution of technologies forces teachers to trade content off for self-learning. PBL is one of the best ways to promote self-learning and simultaneously boost motivation. In this paper, we present our experience ...
  • Workflows and service discovery: a mobile device approach 

    Holthausen, Ricardo; Díaz-Del-Pino, Sergio; Pérez-Wohlfeil, Esteban; Rodríguez-Brazzarola, Pablo; Trelles-Salazar, Oswaldo Rogelio (Springer, Cham, 2018-03)
    Bioinformatics has moved from command-line standalone programs to web-service based environments. Such trend has resulted in an enormous amount of online resources which can be hard to find and identify, let alone execute ...
  • Analyzing the differences between reads and contigs when performing a taxonomic assignment comparison in metagenomics 

    Rodríguez-Brazzarola, Pablo; Pérez-Wohlfeil, Esteban; Díaz-del-Pino, Sergio; Holthausen, Ricardo; Trelles-Salazar, Oswaldo Rogelio (Springer, Cham, 2018-03)
    Metagenomics is an inherently complex field in which one of the primary goals is to determine the compositional organisms present in an environmental sample. Thereby, diverse tools have been developed that are based on ...
  • An Introduction to Intel Threading Building Blocks and its Support for Heterogeneous Programming 

    Asenjo Plaza, Rafael; Cownie, Jim; Fedotov, Aleksei (2018-03-12)
    Due to energy constraints, high performance computing platforms are becoming increasingly heterogeneous, achieving greater performance per watt through the use of hardware that is tuned to specific computational kernels ...
  • Expressing Heterogeneous Parallelism in C++ with Threading Building Blocks 

    Reinders, James; Voss, Michael J.; Reble, Pablo; Asenjo-Plaza, Rafael (2017-12-18)
    Due to energy constraints, high performance computing platforms are becoming increasingly heterogeneous, achieving greater performance per watt through the use of hardware that is tuned to specific computational kernels ...
  • Evaluation of CNN architectures for gait recognition based on optical flow maps 

    Castro, F. M.; Marín-Jiménez, M.J.; Guil, N.; López-Tapia, S.; Pérez de la Blanca, N. (2017)
    This work targets people identification in video based on the way they walk (\ie gait) by using deep learning architectures. We explore the use of convolutional neural networks (CNN) for learning high-level descriptors ...
  • Floating Point Square Root under HUB Format 

    Villalba Moreno, Julio; Hormigo-Aguilar, Javier (2017-09-26)
    Unit-Biased (HUB) is an emerging format based on shifting the representation line of the binary numbers by half unit in the last place. The HUB format is specially relevant for computers where rounding to nearest is ...

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