Publications

Displaying 801 - 825 of 1351

Publication	Date
A Novel Harmony Search Algorithm for One-Year-Ahead Energy Demand Estimation Using Macroeconomic Variables Authors: Javier Del Ser,Jose A. Portilla-Figueras,Sancho Salcedo-Sanz,Miren Nekane Bilbao,Jesús Muñoz-Bulnes In this paper we tackle a problem of one-year ahead energy demand estimation from macroeconomic variables. A modified Harmony Search (HS) algorithm is proposed to this end, as one of the novelties of the paper. The modifications on the proposed HS include a hybrid encoding, with a binary part to… Springer International Publishing	2014-01-01
On Interlinking Linked Data Sources by Using Ontology Matching Techniques and the Map-Reduce Framework Authors: Ana I. Torre-Bastida,Javier Del Ser,David Camacho,Esther Villar-Rodriguez,Marta González-Rodríguez Interlinking different data sources has become a crucial task due to the explosion of diverse, heterogeneous information repositories in the so-called Web of Data. In this paper an approach to extract relationships between entities existing in huge Linked Data sources is presented. Our approach… Springer International Publishing	2014-01-01
Gene–Gene Interactions Detection Using a Two-stage Model Authors: Jae Hoon Sul,Jose A. Lozano,Eleazar Eskin,Zhanyong Wang,Sagi Snir Genome-wide association studies (GWAS) have discovered numerous loci involved in genetic traits. Virtually all studies have reported associations between individual single nucleotide polymorphisms (SNPs) and traits. However, it is likely that complex traits are influenced by interaction of multiple… Mary Ann Liebert Inc	2014-01-01
Optimization of Application Placement Towards a Greener Cloud Infrastructure Authors: Jose Antonio Pascual,Tania Lorido-Botran,Jose A. Lozano,Jose Miguel-Alonso Cloud infrastructures are designed to simultaneously service many, diverse applications that consist of collections of Virtual Machines (VMs). The policy used to map applications onto physical servers (placement policy) has important effects in terms of application performance and resource… Springer Berlin Heidelberg	2014-01-01
Gene-Gene Interactions Detection Using a Two-Stage Model Authors: Eleazar Eskin,Sagi Snir,Jae Hoon Sul,Zhanyong Wang,Jose A. Lozano Genome-wide association studies (GWAS) have discovered numerous loci involved in genetic traits. Virtually all studies have reported associations between individual single nucleotide polymorphisms (SNPs) and traits. However, it is likely that complex traits are influenced by interaction of multiple… Springer International Publishing	2014-01-01
Implementing Recommendations in the PATHS System Authors: Clough, Paul,Otegi, Arantxa,Agirre, Eneko,Hall, Mark M In this paper we describe the design and implementation of non-personalized recommendations in the PATHS system. This system allows users to explore items from Europeana in new ways. Recommendations of the type “people who viewed this item also viewed this item” are powered by pairs of viewed items… Springer International Publishing	2014-01-01
Automatically Adapted Perfectly Matched Layers for Problems with High Contrast Materials Properties Authors: David Pardo,Julen Álvarez-Aramberri,Hélène Barucq AbstractFor the simulation of wave propagation problems, it is necessary to truncate the computational domain. Perfectly Matched Layers are often employed for that purpose, especially in high contrast layered materials where absorbing boundary conditions are difficult to design. In here, we define… Elsevier BV	2014-01-01
UBC entity recognition and disambiguation at ERD 2014 Authors: Ander Barrena,Eneko Agirre,Aitor Soroa This paper describes the system developed at the University of the Basque Country (UBC) for the Entity Recognition and Disambiguation Challenge (ERD 2014). We developed a single system for both long and short tracks. We implemented a very basic mention detection component and complement it with a… ACM Press	2014-01-01
Computer Software for Understanding Resonances and Resonance-Related Phenomena in Chemical Reactions Authors: Dmitri Sokolovski,Dmitri Sokolovski,Elena Akhmatskaya,Elena Akhmatskaya In numerical modelling of chemical reactions one calculates the scattering matrix for the required values of energy and angular momentum. Having done so, one still faces the non-trivial task of extracting detailed information about the reaction mechanism. We discuss the methods and numerical tools… Springer International Publishing	2014-01-01
High latitude gravity waves at the Venus cloud tops as observed by the Venus Monitoring Camera on board Venus Express Authors: Arianna Piccialli,Arianna Piccialli,Agustín Sánchez-Lavega,Håkan Svedhem,Wojciech J. Markiewicz,O. S. Shalygina,Dmitrij V. Titov,Javier Peralta High resolution images of Venus Northern hemisphere obtained with the Venus Monitoring Camera (VMC/VEx) allow studying small-scale dynamical phenomena at the cloud tops (∼62-70 km altitude) including features like wave trains. A systematic visual search of these waves was performed; more than 1500… Elsevier BV	2014-01-01
Customized Selection in Estimation of Distribution Algorithms Authors: Jose A. Lozano,Alexander Mendiburu,Roberto Santana Selection plays an important role in estimation of distribution algorithms. It determines the solutions that will be modeled to represent the promising areas of the search space. There is a strong relationship between the strength of selection and the type and number of dependencies that are… Springer International Publishing	2014-01-01
Optimising the Welding Process in the Manufacture of Offshore Mooring Chains Authors: Carlos Gorria,D. Bilbao,Eduardo Sáinz de la Maza,Igor Gutiérrez,Mariano Lueches,Mikel Lezaun,David Pardo Vicinay Cadenas S.A is a world leader in the manufacture of mooring chains for the offshore industry. Welding is a key part of chain manufacturing. This study seeks to determine how the manufacturing parameters of welding machines influence the appearance of inhomogeneities. The idea is to optimise… Springer International Publishing	2014-01-01
Iterative Probabilistic Tree Search for the Minimum Common String Partition Problem Authors: Christian Blum,Jose A. Lozano,Pedro Pinacho Davidson,Pedro Pinacho Davidson The minimum common string partition problem is an NP-hard combinatorial optimization problem with applications in computational biology. In this work we propose an iterative probabilistic tree search algorithm for tackling this problem. By means of an extensive experimental evaluation we show the… Springer International Publishing	2014-01-01
On the assessment of extreme forces on a floating spar wind turbine Authors: Nava V.,Guedes Soares C.,Arena F. A model based on the Quasi-Determinism theory is used in this paper to evaluate the most probable extreme excitations and their time histories on a 3-degree-of-freedom (i.e. surge, heave and pitch motions) model of a floating spar-type 5 MW wind turbine. Numerical simulations of forces in the time… CRC Press, Boca Raton, 2013	2014-01-01
Rhythm Analysis during Cardiopulmonary Resuscitation: Past, Present, and Future Authors: Sofia Ruiz de Gauna,Unai Irusta,Jesus Ruiz,Unai Ayala,Elisabete Aramendi,Trygve Eftestøl Survival from out-of-hospital cardiac arrest depends largely on two factors: early cardiopulmonary resuscitation (CPR) and early defibrillation. CPR must be interrupted for a reliable automated rhythm analysis because chest compressions induce artifacts in the ECG. Unfortunately, interrupting CPR… Wiley	2014-01-01
Learning Maximum Weighted (k+1)-Order Decomposable Graphs by Integer Linear Programming Authors: Aritz Pérez,Jose A. Lozano,Christian Blum,Christian Blum This work is focused on learning maximum weighted graphs subject to three structural constraints: (1) the graph is decomposable, (2) it has a maximum clique size of k + 1, and (3) it is coarser than a given maximum k-order decomposable graph. After proving that the problem is NP-hard we give a… Springer International Publishing	2014-01-01
Novel hybrid heuristics for an extension of the dynamic relay deployment problem over disaster areas Authors: Sancho Salcedo-Sanz,Mikel Sanchez-Ponte,Sergio Gil-Lopez,Javier Del Ser,Miren Nekane Bilbao,Antonio Arana-Castro In this paper, we propose a novel autonomous intelligent tool for the optimum design of a wireless relayed communication network deployed over disaster areas. The so-called dynamic relay deployment problem consists of finding the optimum number of deployed relays and their location aimed at… Springer Science and Business Media LLC	2013-12-12
Impact flux on Jupiter: From superbolides to large-scale collisions Authors: Hueso, R.,Pérez-Hoyos, S.,Sánchez-Lavega, A.,Wesley, A.,Hall, G.,Go, C.,Tachikawa, M.,Aoki, K.,Ichimaru, M.,Pond, J. W. T.,Korycansky, D. G.,Palotai, C.,Chappell, G.,Rebeli, N.,Harrington, Joseph,Delcroix, M.,Wong, M.,de Pater, I.,Fletcher, L. N.,Hammel… Context. Regular observations of Jupiter by a large number of amateur astronomers have resulted in the serendipitous discovery of short bright flashes in its atmosphere, which have been proposed as being caused by impacts of small objects. Three flashes were detected: one on June 3, 2010, one on… EDP Sciences	2013-12-01
‘Superluminal paradox’ in wave packet propagation and its quantum mechanical resolution Authors: Dmitri Sokolovski,Dmitri Sokolovski,Elena Akhmatskaya We analyse in detail the reshaping mechanism leading to apparently "superluminal" advancement of a wave packet traversing a classically forbidden region. In the coordinate representation, a barrier is shown to act as an effective beamsplitter, recombining envelopes of the freely propagating pulse… Elsevier BV	2013-12-01
Learning Bayesian network classifiers from label proportions Authors: Iñaki Inza,Jerónimo Hernández-González,Jose A. Lozano This paper deals with a classification problem known as learning from label proportions. The provided dataset is composed of unlabeled instances and is divided into disjoint groups. General class information is given within the groups: the proportion of instances of the group that belong to each… Elsevier BV	2013-12-01
Colors of Jupiter's large anticyclones and the interaction of a Tropical Red Oval with the Great Red Spot in 2008 Authors: J. M. Gómez-Forrellad,G. S. Orton,Agustín Sánchez-Lavega,Paolo Tanga,M. Cecconi,Nancy J. Chanover,Ricardo Hueso,Jon Legarreta,Santiago Pérez-Hoyos,Enrique Garcia-Melendo,Amy A. Simon-Miller,Leigh N. Fletcher,Patrick G. J. Irwin AbstractThe nature and mechanisms producing the chromophore agents that provide color to the upper clouds and hazes of the atmospheres of the giant planets are largely unknown. In recent times, the changes in red coloration that have occurred in large‐ and medium‐scale Jovian anticyclones have been… American Geophysical Union (AGU)	2013-12-01
Domain decomposition Fourier finite element method for the simulation of 3D marine CSEM measurements Authors: Shaaban A. Bakr,David Pardo,Trond Mannseth We present a novel numerical method based on domain decomposition for the simulation of 3D geophysical marine controlled source electromagnetic (CSEM) measurements. Parts of the computational domain where it is reasonable to represent geoelectric properties in 2D, are discretized combining 2D mixed… Elsevier BV	2013-12-01
An Evaluation of Methods for Estimating the Number of Local Optima in Combinatorial Optimization Problems Authors: Hernando, Leticia,Mendiburu, Alexander,Lozano, Jose A. The solution of many combinatorial optimization problems is carried out by metaheuristics, which generally make use of local search algorithms. These algorithms use some kind of neighborhood structure over the search space. The performance of the algorithms strongly depends on the properties that… MIT Press	2013-11-01
Reliable extraction of the circulation component in the thoracic impedance measured by defibrillation pads Authors: Unai Ayala,Digna M. González-Otero,Elisabete Aramendi,Jo Kramer-Johansen,Erik Alonso,Jesus Ruiz,Trygve Eftestøl To analyze the feasibility of extracting the circulation component from the thoracic impedance acquired by defibrillation pads. The impedance circulation component (ICC) would permit detection of pulse-generating rhythms (PRs) during the analysis intervals of an automated external defibrillator… Elsevier BV	2013-10-01
Stability of the Self-similar Dynamics of a Vortex Filament Authors: Valeria Banica,Luis Vega revised version, 36 pages Springer Science and Business Media LLC	2013-09-06