• openAccess   2D qualitative shape matching applied to ceramic mosaic assembly 

      Museros, Lledó; Falomir, Zoe; Velasco, Francisco; Gonzalez Abril, Luis; Martí, Isabel Springer Verlag (2012)
      A theory of shape recognition of 2D objects and its application in the ceramic industry for intelligent automation of the mosaic mural assembly process are presented in this paper. This theory qualitatively describes the ...
    • openAccess   2D qualitative shape matching applied to ceramic mosaic assembly 

      Museros, Lledó; Falomir, Zoe; Velasco, Francisco; Gonzalez Abril, Luis; Martí, Isabel Springer Science+Business Media, LLC (2011-03-15)
      A theory of shape recognition of 2D objects and its application in the ceramic industry for intelligent automation of the mosaic mural assembly process are presented in this paper. This theory qualitatively describes the ...
    • openAccess   3D high definition video coding on a GPU-based heterogeneous system 

      Rodríguez Sánchez, Rafael; Martínez, José Luis; De Cock, Jan; Fernández Escribano, Gerardo; Pieters, Bart; Sánchez, José L.; Claver, José M.; Van de Walle, Rik Elsevier (2013-11)
      H.264/MVC is a standard for supporting the sensation of 3D, based on coding from 2 (stereo) to N views. H.264/MVC adopts many coding options inherited from single view H.264/AVC, and thus its complexity is even higher, ...
    • closedAccess   A 3D grasping system based on multimodal visual and tactile processing 

      Grzyb, Beata J.; Chinellato, Eris; Morales, Antonio; del Pobil, Angel P. Emerald Group Publishing (2009)
      urpose – The purpose of this paper is to present a novel multimodal approach to the problem of planning and performing a reliable grasping action on unmodeled objects. Design/methodology/approach – The robotic system is ...
    • openAccess   A Biologically Inspired Approach for Robot Depth Estimation 

      Martínez Martín, Ester; del Pobil, Angel P. Hindawi (2018)
      Aimed at building autonomous service robots, reasoning, perception, and action should be properly integrated. In this paper, the depth cue has been analysed as an early stage given its importance for robotic tasks. So, ...
    • openAccess   A Case for Malleable Thread-Level Linear Algebra Libraries: The LU Factorization With Partial Pivoting 

      Catalán, Sandra; Herrero Zaragoza, José R.; Quintana-Orti, Enrique S.; Rodríguez Sánchez, Rafael; Van de Geijn, Robert A. IEEE (2019-01)
      We propose two novel techniques for overcoming load-imbalance encountered when implementing so-called look-ahead mechanisms in relevant dense matrix factorizations for the solution of linear systems. Both techniques target ...
    • closedAccess   A community-of-practice-based evaluation methodology for knowledge intensive computational methods and its application to multimorbidity decision support 

      Van Woensel, William; Tu, Samson W.; Michalowski, Wojtek; Abidi, Syed Sibte Raza; Abidi, Samina; Alonso, Jose-Ramon; Bottrighi, Alessio; Carrier, Marc; Edry, Ruth; Hochberg, Irit; Rao, Malvika; Kingwell, Stephen; Kogan, Alexandra; Marcos, Mar; Martínez-Salvador, Begoña; Michalowski, Martin; Piovesan, Luca; Riaño, David; Terenziani, Paolo; Wilk, Szymon; Peleg, Mor Elsevier (2023-06)
      Objective: The study has dual objectives. Our first objective (1) is to develop a community-of-practice-based evaluation methodology for knowledge-intensive computational methods. We target a whitebox analysis of the ...
    • closedAccess   A complete and efficient CUDA-sharing solution for HPC clusters 

      Peña Monferrer, Antonio J.; Reaño, Carlos; Silla, Federico; Mayo, Rafael; Quintana-Orti, Enrique S.; Duato, José Elsevier (2014)
      In this paper we detail the key features, architectural design, and implementation of rCUDA, an advanced framework to enable remote and transparent GPGPU acceleration in HPC clusters. rCUDA allows decoupling GPUs from ...
    • closedAccess   A customized precision format based on mantissa segmentation for accelerating sparse linear algebra 

      Grützmacher, Thomas; Cojean, Terry; Flegar, Goran; Göbel, Fritz; Anzt, Hartwig Wiley (2019)
      In this work, we pursue the idea of radically decoupling the floating point format used for arithmetic operations from the format used to store the data in memory. We complement this idea with a customized precision memory ...
    • openAccess   A Data Quality Multidimensional Model for Social Media Analysis 

      Aramburu Cabo, María José; Berlanga Llavori, Rafael; Lanza Cruz, Indira Lázara Springer (2023-11-10)
      Social media platforms have become a new source of useful information for companies. Ensuring the business value of social media first requires an analysis of the quality of the relevant data and then the development of ...
    • closedAccess   A deep hybrid learning model for customer repurchase behavior 

      Kim, Jina; Ji, honggeun; Oh, Soyoung; Hwang, Syjung; Park, Eunil; del Pobil, Angel P. Elsevier (2020-11-28)
      Smartphones have become an integral part of our daily lives, which has led to the rapid growth of the smartphone market. As the global smartphone market tends to remain stable, retaining existing customers has become a ...
    • closedAccess   A document clustering algorithm for discovering and describing topics 

      Anaya Sánchez, Henry; Pons Porrata, Aurora; Berlanga Llavori, Rafael Elsevier (2010)
      In this paper, we introduce a new clustering algorithm for discovering and describing the topics comprised in a text collection. Our proposal relies on both the most probable term pairs generated from the collection and ...
    • closedAccess   A factored variant of the Newton iteration for the solution of algebraic Riccati equations via the matrix sign function 

      Benner, Peter; Ezzatti, Pablo; Quintana-Orti, Enrique S.; Remón Gómez, Alfredo Springer (2013)
      In this paper we introduce a variant of the Newton iteration for the matrix sign function that results in an efficient numerical solver for a certain class of algebraic Riccati equations (AREs). In particular, when the ...
    • closedAccess   A fast band–Krylov eigensolver for macromolecular functional motion simulation on multicore architectures and graphics processors 

      Aliaga Estellés, José Ignacio; Alonso-Jordá, Pedro; Badía, José; Chacón, Pablo; Davidovic, Davor; López Blanco, José R.; Quintana-Orti, Enrique S. Elsevier (2016-03-15)
      We introduce a new iterative Krylov subspace-based eigensolver for the simulation of macromolecular motions on desktop multithreaded platforms equipped with multicore processors and, possibly, a graphics accelerator (GPU). ...
    • openAccess   A framework for compliant physical interaction : the grasp meets the task 

      Prats Sánchez, Mario; Sanz, Pedro J; del Pobil, Angel P. Springer Verlag (2010)
      Although the grasp-task interplay in our daily life is unquestionable, very little research has addressed this problem in robotics. In order to fill the gap between the grasp and the task, we adopt the most successful ...
    • openAccess   A Framework for Enhancing the Operational Phase of Traffic Management Plans 

      García Fernández, Luis Amable; Tomás, Vicente R. IEEE (2020-11-20)
      Road traffic emergencies are dangerous and unexpected situations that require immediate actions by the authorities. These actions involve to attend to the people who have been affected by the emergency and to minimize its ...
    • openAccess   A framework for genomic sequencing on clusters of multicore and manycore processors 

      Martínez Pérez, Héctor; Barrachina Mir, Sergio; Castillo Catalán, María Isabel; Tárraga, Joaquín; Medina, Ignacio; Dopazo, Joaquín; Quintana-Orti, Enrique S. Sage (2016-06)
      The advances in genomic sequencing during the past few years have motivated the development of fast and reliable software for DNA/RNA sequencing on current high performance architectures. Most of these efforts target ...
    • openAccess   A game engine to make games as multi-agent systems 

      Marin-Lora, Carlos; Chover, Miguel; Martínez Sotoca, José; García Fernández, Luis Amable Elsevier (2020-02)
      Video games are applications that present design patterns that resemble multi-agent systems. Game objects or actors are like autonomous agents that interact with each other to describe complex systems. The purpose of this ...
    • openAccess   A General Qualitative Spatio-Temporal Model Based on Intervals 

      Martínez Martín, Ester; Escrig Monferrer, María Teresa; del Pobil, Angel P. J.UCS (2012)
      Many real-world problems involve qualitative reasoning about space and/or time. Actually, it is an adequate tool for dealing with situations in which information is not sufficiently precise. However, despite its numerous ...
    • closedAccess   A general scheme for finding the static rate–distortion optimized ordering for the bits of the coefficients of all subbands of an N-level dyadic biorthogonal DWT 

      Moscoso Rubino, Eduardo; Álvares, Alberto J.; Sanz, Raul; Marin, Raul Elsevier (2018)
      The expected distortion decrease per bit attained by conveying the significance and refinement information of transform coefficients is derived taking into consideration their Probability Distribution Function (PDF) and ...