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Envíos recientes

  • New Results on Non-normalized Floating-point Formats 

    Gonzalez-Navarro, Sonia; Hormigo-Aguilar, Javier (IEEE Computer Society, 2019)
    Compulsory normalization of the represented numbers is a key requirement of the floating-point standard. This requirement contributes to fundamental characteristics of the standard, such as taking the most of the precision ...
  • 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 ...
  • Soporte de Orden y Reducciones en Sistemas de Memoria Transaccional 

    Pedrero Luque, Manuel (UMA Editorial, 2018-11-12)
    En esta tesis se proponen soluciones basadas en memoria transaccional (TM) para optimizar la detección y resolución de conflictos en códigos que presentan operaciones de reducción. Las reducciones aparecen frecuentemente ...
  • Gait recognition from multiple view-points 

    Castro Payan, Francisco Manuel (UMA Editorial, 2018-11-15)
    Arquitectura de Computadores Resumen tesis: La identificación automática de personas está ganando mucha importancia en los últimos años ya que se puede aplicar en entornos que deben ser seguros (aeropuertos, centrales ...
  • Algoritmos multicore para el cálculo de parámetros de visibilidad en sistemas de información geográfica 

    Rodriguez Cervilla, Antonio Manuel (UMA Editorial, 2018-10)
    La mayoría de los algoritmos de visibilidad en Sistemas de Información Geográfica (SIG) se basan en el cálculo y análisis de las Cuencas Visuales desde un punto o a lo sumo desde un conjunto limitado de puntos. El ...
  • 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 ...
  • ReduxSTM: Optimizing STM designs for Irregular Applications 

    Pedrero, Manuel; Gutierrez, Eladio; Romero-Montiel, Sergio; Plata, Oscar (2018-11-15)
  • Mejorando el rendimiento de la memoria transaccional para aplicaciones irregulares 

    Pedrero, Manuel; Gutiérrez, Eladio; Romero-Montiel, Sergio; Plata, Oscar (2018-11-15)
    La Memoria Transaccional (TM) ofrece un modelo de ejecución concurrente optimista en arquitecturas multinúcleo, permitiendo a los programadores extraer paralelismo cuando la información de las dependencias de datos no está ...
  • A Comparative Analysis of STM Approaches to Reduction Operations in Irregular Applications 

    Pedrero, Manuel; Gutierrez-Carrasco, Eladio Damian; Romero-Montiel, Sergio; Plata-Gonzalez, Oscar Guillermo
    As a recently consolidated paradigm for optimistic concurrency in modern multicore architectures, Transactional Memory (TM) can help to the exploitation of parallelism in irregular applications when data dependence ...
  • 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 ...
  • Transactional memory on heterogeneous architectures 

    Villegas Fernandez, Alejandro (UMA Editorial, 2018-02)
    Si observamos las necesidades computacionales de hoy, y tratamos de predecir las necesidades del mañana, podemos concluir que el procesamiento heterogéneo estará presente en muchos dispositivos y aplicaciones. El motivo ...
  • Computational methods and parallel strategies in dynamic decision making 

    Gutierrez-Alcoba, Alejandro (UMA Editorial, 2018)
    Esta tesis analiza aplicaciones de toma de decisiones dinámica para un conjunto de problemas. Pueden diferenciarse dos líneas principales. La primera trata problemas de gestión de la cadena de suministro para productos ...
  • Fast HUB Floating-point Adder for FPGA 

    Villalba-Moreno, Julio; Hormigo-Aguilar, Javier; Gonzalez-Navarro, Sonia (2018-10-17)
    Several previous publications have shown the area and delay reduction when implementing real number computation using HUB formats for both floating-point and fixed-point. In this paper, we present a HUB floating-point ...
  • 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 ...
  • Scheduling strategies for parallel patterns on heterogeneous architectures 

    Vilches Reina, Antonio (UMA Editorial, 2017)
    During the last decade, power consumption and energy efficiency have become key aspects in processor design. Nowadays, the power consumption is the principal limitation for further scaling of chip multiprocessors design ...

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