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Accelerating the SRP-PHAT algorithm on multi- and many-core platforms using OpenCL
Springer (2019-03)The Steered Response Power with Phase Transform (SRP-PHAT) algorithm is a well-known method for sound source localization due to its robust performance in noisy and reverberant environments. This algorithm is used in a ... -
Accelerating the task/data-parallel version of ILUPACK’s BiCG in multi-CPU/GPU configurations
Elsevier (2019)ILUPACK is a valuable tool for the solution of sparse linear systems via iterative Krylov subspace-based methods. Its relevance for the solution of real problems has motivated several efforts to enhance its performance on ... -
Acceleration of PageRank with Customized Precision Based on Mantissa Segmentation
Association for Computing Machinery (ACM) (2020-03)We describe the application of a communication-reduction technique for the PageRank algorithm that dynamically adapts the precision of the data access to the numerical requirements of the algorithm as the iteration converges. ... -
Acceleration of short and long DNA read mapping without loss of accuracy using suffix array
Oxford University Press (2014-08)HPG Aligner applies suffix arrays for DNA read mapping. This implementation produces a highly sensitive and extremely fast mapping of DNA reads that scales up almost linearly with read length. The approach presented here ... -
Accessing very high dimensional spaces in parallel
Springer (2016-02-17)Access methods are a fundamental tool on Information Retrieval. However, most of these methods suffer the problem known as the curse of dimensionality when they are applied to objects with very high dimensionality ... -
Adapting concurrency throttling and voltage–frequency scaling for dense eigensolvers
Springer Verlag (2015)We analyze power dissipation and energy consumption during the execution of high-performance dense linear algebra kernels on multi-core processors. On top of this analysis, we propose and evaluate several strategies to ... -
Adapting hierarchical bidirectional inter prediction on a GPU-based platform for 2D and 3D H.264 video coding
SpringerOpen (2013)The H.264/AVC video coding standard introduces some improved tools in order to increase compression efficiency. Moreover, the multi-view extension of H.264/AVC, called H.264/MVC, adopts many of them. Among the new features, ... -
Adaptive Precision Block-Jacobi for High Performance Preconditioning in the Ginkgo Linear Algebra Software
Association for Computing Machinery (ACM) (2021-04)The use of mixed precision in numerical algorithms is a promising strategy for accelerating scientific applications. In particular, the adoption of specialized hardware and data formats for low-precision arithmetic in ... -
Adaptive precision in block‐Jacobi preconditioning for iterative sparse linear system solvers
Wiley (2019-03-25)We propose an adaptive scheme to reduce communication overhead caused by data movement by selectively storing the diagonal blocks of a block‐Jacobi preconditioner in different precision formats (half, single, or double). ... -
Advances in Indoor Positioning and Indoor Navigation
MDP (2022) -
Algorithm 1022: Efficient Algorithms for Computing a Rank-Revealing UTV Factorization on Parallel Computing Architectures
Association for Computing Machinery (ACM) (2022-06)Randomized singular value decomposition (RSVD) is by now a well-established technique for efficiently computing an approximate singular value decomposition of a matrix. Building on the ideas that underpin RSVD, the recently ... -
Algorithm 1033: Parallel Implementations for Computing the Minimum Distance of a Random Linear Code on Distributed-memory Architectures
Association for Computing Machinery (ACM) (2023-03)The minimum distance of a linear code is a key concept in information theory. Therefore, the time required by its computation is very important to many problems in this area. In this article, we introduce a family of ... -
An Active System for Visually-Guided Reaching in 3D across Binocular Fixations
Hindawi Publishing Corporation (2014-02)Based on the importance of relative disparity between objects for accurate hand-eye coordination, this paper presents a biological approach inspired by the cortical neural architecture. So, the motor information is coded ... -
An adaptive offline implementation selector for heterogeneous parallel platforms
Universidad de Salamanca (2017-03)Heterogeneous parallel platforms, comprising multiple processing units and architectures, have become a cornerstone in improving the overall performance and energy efficiency of scientific and engineering applications. ... -
An agent-based platform to evaluate V2X routing road traffic scenarios
Elsevier (2023)Traffic congestion is a recurrent problem in both urban and non-urban road networks. It impacts several key issues such as higher overall gas consumption, vehicle emissions, and noise. Traffic information available on time ... -
An Algorithm-by-Blocks for SuperMatrix Band Cholesky Factorization
Springer Verlag (2008)We pursue the scalable parallel implementation of the factor- ization of band matrices with medium to large bandwidth targeting SMP and multi-core architectures. Our approach decomposes the computation into a large ... -
An analytical methodology to derive power models based on hardware and software metrics
Springer Berlin Heidelberg (2015-09)The use of models to predict the power con- sumption of a system is an appealing alternative to wattmeters since they avoid hardware costs and are easy to deploy. In this paper, we present a systematic ... -
An archetype-based solution for the interoperability of computerised guidelines and electronic health records
Springer Verlag (2011)Clinical guidelines contain recommendations based on the best empirical evidence available at the moment. There is a wide con- sensus about the benefits of guidelines and about the fact that they should be deployed through ... -
An art painting style explainable classifier grounded on logical and commonsense reasoning
Springer (2023-05-17)This paper presents the art painting style explainable classifier named ANYXI. The classifier is based on art specialists’ knowledge of art styles and human-understandable color traits. ANYXI overcomes the principal flaws ... -
An efficient GPU version of the preconditioned GMRES method
Springer (2019-03)In a large number of scientific applications, the solution of sparse linear systems is the stage that concentrates most of the computational effort. This situation has motivated the study and development of several iterative ...