Listar Departament: Enginyeria i Ciència dels Computadors por título

Mostrando ítems 410-429 de 540

    • openAccess   Qualitative distances and qualitative description of images for indoor scene description and recognition in robotics 

      Falomir, Zoe IOS Press (2012-09)
      This thesis is focused on reducing the gap between the acquisition of low level information by robot sensors and the need of obtaining high level information for enhancing human-machine communication and for applying ...

    • closedAccess   Qualitative distances and qualitative image descriptions for representing indoor scenes in robotics 

      Falomir, Zoe; Museros, Lledó; Castelló, Vicente; Gonzalez Abril, Luis Elsevier (2013)
      Patterns of qualitative concepts are extracted from robot sensors in order to describe the shapes, colours, spatial orientations and topology situations of natural landmarks in the robot environment and also the distance ...

    • openAccess   Quality management in social business intelligence projects 

      Aramburu Cabo, María José; Berlanga Llavori, Rafael; Lanza Cruz, Indira Lázara SciTePress Science and Technology Publications (2021)
      Social networks have become a new source of useful information for companies. Increasing the value of social data requires, first, assessing and improving the quality of the relevant data and, subsequently, developing ...

    • openAccess   Quality of services solution for efficient communication within a distributed urban traffic control system 

      Mocofan, Ana Maria Nicoleta; Ghita, Razvan; Tomás López, Vicente Ramón; Nemtanu, Florin Codrut University Politechnica of Bucharest (2016)
      Modern Urban Traffic Control (UTC) systems are based on cooperative entities, able to produce optimal signalling strategies independently of traffic control centres. The more information the junction’s entities receive ...

    • openAccess   ¿Qué nos dicen los estudiantes sobre lo que hace que funcione la clase invertida? 

      Marqués-Andrés, Mercedes; Badía, José JENUI Editores (2021)
      La clase invertida es uno de las modelos docentes que más se ha popularizado en los últimos años. La mayoría de los estudios publicados indican que mejora el aprendizaje y la satisfacción del estudiantado. Sin embargo, ...

    • openAccess   Radiological Structured Report Integrated with Quantitative Imaging Biomarkers and Qualitative Scoring Systems 

      Mañas Garcia , Alejandro; González Valverde, Ismael; Camacho‑Ramos, E.; Alberich-Bayarri, Angel; Maldonado, Jose Alberto; Marcos, Mar; Robles, Montserrat Springer (2022-02-01)
      The benefits of structured reporting (SR) in radiology are well-known and have been widely described. However, there are limitations that must be overcome. Radiologists may be reluctant to change the conventional way of ...

    • openAccess   randUTV: A Blocked Randomized Algorithm for Computing a Rank-Revealing UTV Factorization 

      MARTINSSON, GUNNAR; Quintana-Ortí, Gregorio; Heavner, Nathan Association for Computing Machinery (2019-03)
      A randomized algorithm for computing a so-called UTV factorization efficiently is presented. Given a matrix , the algorithm “randUTV” computes a factorization , where and have orthonormal columns, and is triangular ...

    • openAccess   Reaching for the Unreachable: Reorganization of Reaching with Walking 

      Grzyb, Beata J.; Smith, L. B.; del Pobil, Angel P. Institute of Electrical and Electronics Engineers (IEEE) (2013)
      Previous research suggests that reaching and walking behaviors may be linked developmentally as reaching changes at the onset of walking. Here we report new evidence on an apparent loss of the distinction between the ...

    • closedAccess   Real-time endmember extraction on multicore processors 

      Quintana-Orti, Enrique S.; Remón Gómez, Alfredo; Sánchez, Sergio; Paz, Abel; Plaza, Antonio IEEE (2011)
      In this letter, we discuss the use of multicore processors in the acceleration of endmember extraction algorithms for hyperspectral image unmixing. Specifically, we develop computationally efficient versions of two popular ...

    • closedAccess   Real-time rate distortion-optimized image compression with region of interest on the ARM architecture for underwater robotics applications 

      Moscoso Rubino, Eduardo; Alvares, Alberto; Marin, Raul; Sanz, Pedro J Springer (2019-02)
      This paper proposes the use of a real-time progressive image compression and region of interest algorithm for the ARM processor architecture. This algorithm is used for the design of an underwater image sensor for an ...

    • openAccess   Recent Progress in the RAUVI Project: A Reconfigurable Autonomous Underwater Vehicle for Intervention 

      Sanz, Pedro J; Prats Sánchez, Mario; Ridao, Pere; Ribas, David; Oliver, Gabriel; Ortiz, Alberto (2011)
      Starting in January 2009, the RAUVI project is a three years coordinated research action funded by the Spanish Ministry of Research and Innovation. This paper shows the research evolution during the first half of RAUVI’s ...

    • openAccess   Reconfigurable AUV for Intervention Missions: A Case Study on Underwater Object Recovery 

      Prats Sánchez, Mario; Ribas, David; Palomeras, Narcís; García Sánchez, Juan Carlos; Nannen, Volker; Wirth, Stephan; Fernández Fresneda, José Javier; Beltrán, Joan P.; Campos, Ricard; Ridao, Pere; Sanz, Pedro J; Oliver, Gabriel; Carreras, Marc; Gracias, Nuno; Marin, Raul; Ortiz, Alberto Springer (2012)
      Starting in January 2009, the RAUVI (Reconfigurable Autonomous Underwater Vehicle for Intervention Missions) project is a 3-year coordinated research action funded by the Spanish Ministry of Research and Innovation. In ...

    • openAccess   Recovering Depth from Still Images for Underwater Dehazing Using Deep Learning 

      Pérez Soler, Javier; Bryson, Mitch; Williams, Sephan B.; Sanz, Pedro J MDPI (2020)
      Estimating depth from a single image is a challenging problem, but it is also interestingdue to the large amount of applications, such as underwater image dehazing. In this paper, a newperspective is provided; by taking ...

    • openAccess   Reducing Power Consumption of the LU Factorization with Partial Pivoting on Multi-Core Processors 

      Alonso-Jordá, Pedro; Dolz, Manuel F.; Mayo, Rafael; Quintana-Orti, Enrique S. Departament d' Enginyeria i Ciència dels Computadors, Universitat Jaume I (2011-07)
      In this paper we analyze the trade-off between energy and performance for a data- parallel execution of the LU factorization with partial pivoting on a multi-core proces- sor. To improve power efficiency, we adapt the ...

    • closedAccess   Reducing the cost of power monitoring with DC wattmeters 

      Castaño Álvarez, María Asunción; Catalán, Sandra; Mayo, Rafael; Quintana-Orti, Enrique S. Springer Berlin Heidelberg (2015-05)
      The use of internal DC wattmeters, connected to the ATX lines that distribute power from the supply unit to the computer components, is a luring method to profile power in server configurations due to the accurate and ...

    • closedAccess   Reduction to Condensed Forms for Symmetric Eigenvalue Problems on Multi-core Architectures 

      Bientinesi, Paolo; Igual, Francisco; Kressner, Daniel; Quintana-Orti, Enrique S. Springer Berlin Heidelberg (2010)
      We investigate the performance of the routines in LAPACK and the Successive Band Reduction (SBR) toolbox for the reduction of a dense matrix to tridiagonal form, a crucial preprocessing stage in the solution of the symmetric ...

    • openAccess   Reformulating the direct convolution for high-performance deep learning inference on ARM processors 

      Barrachina Mir, Sergio; Castelló, Adrián; Dolz, Manuel F.; Low, Tze Meng; Martinez, Hector; Quintana-Orti, Enrique S.; Upasana, Sridhar; Tomás Domínguez, Andrés Enrique Elsevier (2022-12-20)
      We present two high-performance implementations of the convolution operator via the direct algorithm that outperform the so-called lowering approach based on the im2col transform plus the gemm kernel on an ARMv8-based ...

    • openAccess   Reliability Evaluation of LU Decomposition on GPU-Accelerated System-on-Chip Under Proton Irradiation 

      Badía, José; León, Germán; BELLOCH, JOSE A.; LINDOSO, ALMUDENA; García Valderas, Mario; Morilla, Yolanda; Entrena, Luis IEEE (2022-03-22)
      Graphic processing units (GPUs) have become a basic accelerator both in high-performance nodes and low-power system-on-chip (SoC). They provide massive data parallelism and very high performance per watt. However, their ...

    • openAccess   Reliable non-prehensile door opening through the combination of vision, tactile and force feedback 

      Prats Sánchez, Mario; Sanz, Pedro J; del Pobil, Angel P. Springer (2010-08-01)
      Whereas vision and force feedback—either at the wrist or at the joint level—for robotic manipulation purposes has received considerable attention in the literature, the benefits that tactile sensors can provide when combined ...

    • openAccess   Remote GPU Virtualization: Is It Useful? 

      Silla, Federico; Prades, Javier; Iserte, Sergio; Reaño, Carlos IEEE (2016-03)
      Graphics Processing Units (GPUs) are currently used in many computing facilities. However, GPUs present several side effects, such as increased acquisition costs as well as larger space requirements. Also, GPUs still require ...