Publications

Displaying 526 - 550 of 1307

Publication	Date
Overview of useful spectral regions for Venus: An update to encourage observations complementary to the Akatsuki mission Authors: Peralta, J.,Lee, Y.J.,McGouldrick, K.,Sagawa, H.,Sánchez-Lavega, A.,Imamura, T.,Widemann, T.,Nakamura, M. International audience Elsevier BV	2017-05-01
Fast inversion of logging-while-drilling resistivity measurements acquired in multiple wells Authors: Shaaban A. Bakr,David Pardo,Carlos Torres-Verdín We have developed a new method for the fast inversion of borehole resistivity measurements acquired in multiple wells using logging-while-drilling instruments. There are two key novel contributions. First, we approximate general 3D transversely isotropic (TI) formations with a sequence of several… Society of Exploration Geophysicists	2017-05-01
Reexamination of continuous fuzzy measurement on two-level systems Authors: Sokolovski, D.,Rusconi, S.,Brouard, S.,Akhmatskaya, E. MINECO, Fondo Europeo de Desarrollo Regional FEDER, Grant No. FIS2015-67161-P (MINECO/FEDER) (D.S.), MINECO Grant No. SVP-2014-068451 (S.R.), MINECO Grant No. MTM2013-46553-C3-1-P (E.A.), SGI/IZOSGIker UPV/EHU, i2BASQUE academic network, American Physical Society (APS)	2017-04-10
Underwater Robot Task Planning Using Multi-Objective Meta-Heuristics Authors: Itziar Landa-Torres,Diana Manjarres,Sonia Bilbao,Javier Del Ser Robotics deployed in the underwater medium are subject to stringent operational conditions that impose a high degree of criticality on the allocation of resources and the schedule of operations in mission planning. In this context the so-called cost of a mission must be considered as an additional… MDPI AG	2017-04-04
The value of continuity: Refined isogeometric analysis and fast direct solvers Authors: Victor M. Calo,Victor M. Calo,David Pardo,David Pardo,David Pardo,Lisandro Dalcin,Lisandro Dalcin,Maciej Paszyński,Nathan Collier,Daniel Garcia We propose the use of highly continuous finite element spaces interconnected with low continuity hyperplanes to maximize the performance of direct solvers. Starting from a highly continuous Isogeometric Analysis (IGA) discretization, we introduce $C^0$-separators to reduce the interconnection… Elsevier BV	2017-04-01
An investigation of clustering strategies in many-objective optimization: the I-Multi algorithm as a case study Authors: Aurora Pozo,Olacir R. Castro,Jose A. Lozano,Jose A. Lozano,Roberto Santana 200040/2015-4, 306103/2015-0, IT-609-13 2013-2018, TIN2016-78365-R. Springer Science and Business Media LLC	2017-03-30
Enhancing sampling in atomistic simulations of solid-state materials for batteries: a focus on olivine $$\hbox {NaFePO}_4$$ NaFePO 4 Authors: Mario Fernández-Pendás,Elena Akhmatskaya,Elena Akhmatskaya,Tijana Radivojevic,Ariel Lozano,Bruno Escribano,Javier Carrasco The study of ion transport in electrochemically active materials for energy storage systems requires simulations on quantum- atomistic- and mesoscales. The methods accessing these scales not only have to be effective but also well compatible to provide a full description of the underlying processes… Springer Science and Business Media LLC	2017-03-07
Interpretable semantic textual similarity: Finding and explaining differences between sentences Authors: I. Lopez-Gazpio,M. Maritxalar,A. Gonzalez-Agirre,G. Rigau,L. Uria,E. Agirre Preprint version, Knowledge-Based Systems (ISSN: 0950-7051). (2016) Elsevier BV	2017-03-01
Hybridizing Cartesian Genetic Programming and Harmony Search for adaptive feature construction in supervised learning problems Authors: Andoni Elola,Javier Del Ser,Miren Nekane Bilbao,Cristina Perfecto,Enrique Alexandre,Sancho Salcedo-Sanz The advent of the so-called Big Data paradigm has motivated a flurry of research aimed at enhancing machine learning models by following very di- verse approaches. In this context this work focuses on the automatic con- struction of features in supervised learning problems, which differs from the… Elsevier BV	2017-03-01
A novel BRAM content accessing and processing method based on FPGA configuration bitstream Authors: J. Gomez-Cornejo,A. Zuloaga,I. Villalta,J. Del Ser,U. Kretzschmar,J. Lazaro This paper presents a new approach to manage data content of memories implemented in FPGAs through the configuration bitstream. The proposed approach is able to read and write the data content from Block RAMs (BRAMs) in FPGA based designs by reading and processing the information stored in the… Elsevier BV	2017-03-01
On the interplay between scheduling interval and beamwidth selection for low-latency and reliable V2V mmWave communications Authors: Perfecto, C.,Del Ser, J.,Bennis, M. The interest in mmWave communications has risen sharply in the last years motivated by their widespread con- sideration as a technological solution capable of dealing with the stringent rate requirements currently demanded by wireless networks. This momentum gained by mmWave bands springs several… IEEE	2017-03-01
Comparison of beta-binomial regression model approaches to analyze health-related quality of life data Authors: Najera-Zuloaga, J.,Lee, D.-J.,Arostegui, I. Health-related quality of life has become an increasingly important indicator of health status in clinical trials and epidemiological research. Moreover, the study of the relationship of health-related quality of life with patients and disease characteristics has become one of the primary aims of… SAGE Publications	2017-02-13
An efficient approximation to the K-means clustering for massive data Authors: Marco Capó,Aritz Pérez,Jose A. Lozano Due to the progressive growth of the amount of data available in a wide variety of scientific fields, it has become more difficult to manipulate and analyze such information. In spite of its dependency on the initial settings and the large number of distance computations that it can require to… Elsevier BV	2017-02-01
A multi-domain decomposition-based Fourier finite element method for the simulation of 3D marine CSEM measurements Authors: Shaaban A. Bakr,Shaaban A. Bakr,David Pardo,David Pardo,David Pardo We introduce a multi-domain decomposition Fourier finite element (MDDFFE) method for the simulation of three-dimensional (3D) marine controlled source electromagnetic measurement (CSEM). The method combines a 2D finite element (FE) method in two spatial dimensions with a hybrid discretization based… Springer Science and Business Media LLC	2017-01-25
Wireless Network Optimization for Massive V2I Data Collection Using Multiobjective Harmony Search Heuristics Authors: Sobron, I.,Alonso, B.,Del Ser, J.,Vélez, M. This paper proposes to improve the efficiency of the deploy- ment of wireless network infrastructure for massive data collection from vehicles over regional areas. The increase in the devices that are carried by vehicles makes it especially interesting being able to gain access to that data. From a… Springer Singapore	2017-01-01
Optimally refined isogeometric analysis Authors: Michael Bartoň,Daniel Garcia,David Pardo,David Pardo,David Pardo Performance of direct solvers strongly depends upon the employed discretization method. In particular, it is possible to improve the performance of solving Isogeometric Analysis (IGA) discretizations by introducing multiple C-continuity hyperplanes that act as separators during LU factorization [8… Elsevier BV	2017-01-01
Analyzing the Performance of Allocation Strategies Based on Space-Filling Curves Authors: Jose Miguel-Alonso,Jose A. Lozano,Jose A. Lozano,Jose Antonio Pascual Future exascale supercomputers will be composed of thousands of nodes. In those massive systems, the search for physically close nodes will become essential to deliver an optimal environment to execute parallel applications. Schedulers manage those resources, shared by many users and jobs,… Springer International Publishing	2017-01-01
Solving strategy board games using a CSP-based ACO approach Authors: Antonio Gonzalez-Pardo,Javier Del Ser,David Camacho In the last years, there have been a huge increase in the number of research contributions that use games and video-games as an application domain for testing different artificial intelligence algorithms. Some of these problems can be represented as a constraint satisfaction problem (CSP), and… Inderscience Publishers	2017-01-01
A multi-objective memetic inverse solver reinforced by local optimization methods Authors: David Pardo,David Pardo,David Pardo,Ewa Gajda-Zagórska,Ewa Gajda-Zagórska,Maciej Smołka,Robert Schaefer,Julen Álvarez-Aramberri We propose a new memetic strategy that can solve the multi-physics, complex inverse problems, formulated as the multi-objective optimization ones, in which objectives are misfits between the measured and simulated states of various governing processes. The multi-deme structure of the strategy… Elsevier BV	2017-01-01
Feasibility of the capnogram to monitor ventilation rate during cardiopulmonary resuscitation Authors: Elisabete Aramendi,Andoni Elola,Erik Alonso,Unai Irusta,Mohamud Daya,James K. Russell,Pia Hubner,Fritz Sterz The rates of chest compressions (CCs) and ventilations are both important metrics to monitor the quality of cardiopulmonary resuscitation (CPR). Capnography permits monitoring ventilation, but the CCs provided during CPR corrupt the capnogram and compromise the accuracy of automatic ventilation… Elsevier BV	2017-01-01
ICCS 2017 Workshop on Agent-Based Simulations, Adaptive Algorithms and Solvers Authors: Byrski, A.,Paszyński, M.,Schaefer, R.,Calo, V.,Pardo, D. This workshop seeks to integrate results from different domains of computer science, computational science, and mathematics. We welcome simulation papers, either hard simulations using finite element or finite difference methods, or soft simulations by means of evolutionary computations, and… Elsevier BV	2017-01-01
On-Line Dynamic Time Warping for Streaming Time Series Authors: Aritz Pérez,Javier Del Ser,Javier Del Ser,Jose A. Lozano,Jose A. Lozano,Izaskun Oregi Dynamic Time Warping is a well-known measure of dissimilarity between time series. Due to its flexibility to deal with non-linear distortions along the time axis, this measure has been widely utilized in machine learning models for this particular kind of data. Nowadays, the proliferation of… Springer International Publishing	2017-01-01
An Analysis of Coalition-Competition Pricing Strategies for Multi-operator Mobile Traffic Offloading Using Bi-objective Heuristics Authors: Consul, J.,Perfecto, C.,Del Ser, J.,Bilbao, M.N. In a competitive market relationships between telecommuni- cations operators serving simultaneously over a certain geographical area are diverse and motivated by very different business strategies and goals. Such relationships ultimately yield distinct pricing portfolios depending on the… Springer Singapore	2017-01-01
A Heuristically Optimized Complex Event Processing Engine for Big Data Stream Analytics Authors: Ana I. Torre-Bastida,Javier Del Ser,Javier Del Ser,Ibai Laña,Ignacio Olabarrieta,Sergio Campos-Cordobés This paper describes a Big Data stream analytics platform developed within the DEWI project for processing upcoming events from wireless sensors installed in a truck. The platform consists of a Complex Event Processing (CEP) engine capable of triggering alarms from a predefined set of rules. In… Springer Singapore	2017-01-01
Assessment of van der Waals inclusive density functional theory methods for layered electroactive materials Authors: Bruno Escribano,Javier Carrasco,Ariel Lozano,Elena Akhmatskaya,Elena Akhmatskaya This work provides solid guidance for the selection of accurate and robust vdW-inclusive methods for high-throughput computational screening of layered electroactive materials. Royal Society of Chemistry (RSC)	2017-01-01