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Mostrando ítems 267-286 de 419

    • closedAccess   Modeling power and energy consumption of dense matrix factorizations on multicore processors 

      Alonso-Jordá, Pedro; Dolz, Manuel F.; Mayo, Rafael; Quintana-Orti, Enrique S. Wiley (2013-10-11)
      In this paper, we propose a model for the energy consumption of the concurrent execution of three key dense matrix factorizations, with task parallelism leveraged via the Symmetric Multi-Processing Superscalar (SMPSs) ...

    • closedAccess   Modeling power and energy of the task-parallel Cholesky factorization on multicore processors 

      Alonso-Jordá, Pedro; Dolz, Manuel F.; Mayo, Rafael; Quintana-Orti, Enrique S. Springer Berlin Heidelberg (2014-05)
      In this paper we introduce a model for the total energy consumption of the Cholesky factorization on a multicore processor. Our model assumes a task-parallel execution of the factorization process, with concurrency leveraged ...

    • openAccess   Modeling power consumption of 3D MPDATA and the CG method on ARM and Intel multicore architectures 

      Rojek, Krzysztof; Quintana-Orti, Enrique S.; Wyrzykowski, Roman Springer-Verlag (2017-03)
      We propose an approach to estimate the power consumption of algorithms, as a function of the frequency and number of cores, using only a very reduced set of real power measures. In addition, we also provide the formulation ...

    • closedAccess   Modeling the user acceptance of long-term evolution (LTE) services 

      Park, Eunil; del Pobil, Angel P. Wiley (2013-06)
      With an integrated framework, this paper aims to analyze user perception and acceptance toward long-term evolution (LTE) services, focusing on factors that may influence the intention to use. We conducted a web-based survey ...

    • openAccess   Monocular Robust Depth Estimation Vision System for Robotic Tasks Interventions in Metallic Targets 

      Veiga Almagro, Carlos; Di Castro, Mario; Lunghi, Giacomo; Marin, Raul; Sanz, Pedro J; Ferre, Manuel; Masi, Alessandro MDPI (2019)
      Robotic interventions in hazardous scenarios need to pay special attention to safety, as in most cases it is necessary to have an expert operator in the loop. Moreover, the use of a multi-modal Human-Robot Interface ...

    • openAccess   Multi-Sensor Localization and Navigation for Remote Manipulation in Smoky Areas 

      Martí Avilés, José Vicente; Sales Gil, Jorge; Marin, Raul; Sanz, Pedro J InTech (2013)
      Abstract When localizing mobile sensors and actuators in indoor  environments  laser  meters,  ultrasonic  meters  or  even image processing techniques are usually used. On  the  other  hand,  in  smoky  conditions,  ...

    • openAccess   Multi-sensor localization and navigation for remote manipulation in smoky areas 

      Martí Avilés, José Vicente; Sales Gil, Jorge; Marin, Raul; Sanz, Pedro J SAGE Publications (2013)
      When localizing mobile sensors and actuators in indoor environments laser meters, ultrasonic meters or even image processing techniques are usually used. On the other hand, in smoky conditions, due to a fire or building ...

    • openAccess   Multi-Sensor Person Following in Low-Visibility Scenarios 

      Sales Gil, Jorge; Marin, Raul; Cervera, Enric; Rodríguez, Sergio; Pérez Soler, Javier MDPI (2010)
      Person following with mobile robots has traditionally been an important research topic. It has been solved, in most cases, by the use of machine vision or laser rangefinders. In some special circumstances, such as a smoky ...

    • closedAccess   Multi-threaded dense linear algebra libraries for low-power asymmetric multicore processors 

      Catalán, Sandra; Herrero Zaragoza, José R.; Igual, Francisco; Rodríguez Sánchez, Rafael; Quintana-Orti, Enrique S.; Adeniyi-Jones, Chris Elsevier (2018-03)
      Dense linear algebra libraries, such as BLAS and LAPACK, provide a relevant collection of numerical tools for many scientific and engineering applications. While there exist high performance implementations of the BLAS ...

    • openAccess   Multicore implementation of a multichannel parallel graphic equalizer 

      BELLOCH, JOSE A.; Badía, José; León, Germán; Bank, Balázs; Välimäki, Vesa Springer (2022-04-22)
      Numerous signal processing applications are emerging on mobile computing systems. These applications are subject to responsiveness constraints for user interactivity and, at the same time, must be optimized for energy ...

    • openAccess   Multidimensional Author Profling for Social Business Intelligence 

      Lanza Cruz, Indira Lázara; Berlanga Llavori, Rafael; Aramburu Cabo, María José Springer (2023)
      This paper presents a novel author profling method specially aimed at classifying social network users into the multidimensional perspectives for social business intelligence (SBI) applications. In this scenario, being the ...

    • closedAccess   Multimedia Communications Using a Fast and Flexible DVC to H.264/AVC/SVC Transcoder 

      Corrales García, Alberto; Rodríguez Sánchez, Rafael; Martínez, José Luis; Fernández Escribano, Gerardo; Quiles, Francisco José Springer (2013)
      The evolution of network technologies and mobile devices (equipped with low-cost video cameras) offer new multimedia services for mobile telephony, such as video communications. However, this kind of multimedia services ...

    • openAccess   Multimodal Human-Robot Interface for Accessible Remote Robotic Interventions in Hazardous Environments 

      Lunghi, Giacomo; Marin, Raul; Di Castro, Mario; Masi, Alessandro; Sanz, Pedro J IEEE (2019-09-04)
      Human-Robot Interfaces have a key role in the design of secure and efficient robotic systems. Great effort has been put during the past decades on the design of advanced interfaces for domestic and industrial robots. ...

    • openAccess   Multimodal Multi-User Mixed Reality Human–Robot Interface for Remote Operations in Hazardous Environments 

      Szczurek, Krzysztof Adam; Marin, Raul; Matheson, Eloise; Rodriguez-Nogueira, Jose; Di Castro, Mario Institute of Electrical and Electronics Engineers Inc. (2023-02-15)
      In hazardous environments, where conditions present risks for humans, the maintenance and interventions are often done with teleoperated remote systems or mobile robotic manipulators to avoid human exposure to dangers. The ...

    • openAccess   Multimodal Sensor Data Integration for Indoor Positioning in Ambient-Assisted Living Environments 

      Sansano-Sansano, Emilio; Belmonte-Fernández, Óscar; Montoliu Colás, Raul; Gascó Compte, Arturo; Caballer Miedes, Antonio Hindawi (2020)
      A reliable Indoor Positioning System (IPS) is a crucial part of the Ambient-Assisted Living (AAL) concept. The use of Wi-Fi fingerprinting techniques to determine the location of the user, based on the Received Signal ...

    • closedAccess   New approach for a Reconfigurable Autonomous Underwater Vehicle for Intervention 

      De Novi, G.; Melchiorri, Claudio; García Sánchez, Juan Carlos; Sanz, Pedro J; Ridao, Pere; Oliver, Gabriel IEEE (2010-11)
      This shows an on-going project named RAUVI (i.e., Reconfigurable AUV for Intervention). This project aims to design and develop an Underwater Autonomous Robot, able to perceive the environment by means of acoustic and optic ...

    • openAccess   Noise estimation for hyperspectral subspace identification on FPGAs 

      León, Germán; González, Carlos; Mayo, Rafael; Mozos, Daniel; Quintana-Orti, Enrique S. Springer (2019-05)
      We present a reliable and efficient FPGA implementation of a procedure for the computation of the noise estimation matrix, a key stage for subspace identification of hyperspectral images. Our hardware realization is based ...

    • openAccess   Object Detection and Recognition for Assistive Robots: Experimentation and Implementation 

      Martínez Martín, Ester; del Pobil, Angel P. Institute of Electrical and Electronics Engineers (IEEE) (2017-09)
      Technological advances are being made to assist humans in performing ordinary tasks in everyday settings. A key issue is the interaction with objects of varying size, shape, and degree of mobility. Autonomous assistive ...

    • openAccess   Off-Line Evaluation of Indoor Positioning Systems in Different Scenarios: The Experiences From IPIN 2020 Competition 

      Potortì, Francesco; Torres-Sospedra, Joaquín; Quezada Gaibor, Darwin; Jimenez Ruiz, Antonio Ramon; Seco, Fernando; Perez-Navarro, Antoni; ortiz, miguel; Zhu, Ni; Renaudin, Valerie; Ichikari, Ryosuke Institute of Electrical and Electronics Engineers (2022-03)
      Every year, for ten years now, the IPIN competition has aimed at evaluating real-world indoor localisation systems by testing them in a realistic environment, with realistic movement, using the EvAAL framework. The competition ...

    • closedAccess   On the adequacy of lightweight thread approaches for high-level parallel programming models 

      Castelló, Adrián; Mayo, Rafael; Sala, Kevin; Beltran Querol, Vicenç; Balaji, Pavan; Peña Monferrer, Antonio J. Elsevier (2018-07)
      High-level parallel programming models (PMs) are becoming crucial in order to extract the computational power of current on-node multi-threaded parallelism. The most popular PMs, such as OpenMP or OmpSs, are directive-based: ...