Publications

Displaying 901 - 925 of 1351

Publication	Date
A preliminary approach to near-optimal multi-hop capacitated network design using grouping-dandelion encoded heuristics Authors: J. Del Ser,Sergio Gil-Lopez,Itziar Landa-Torres,Diana Manjarres,Sancho Salcedo-Sanz In this paper we outline a novel global heuristic tool to deal with a combination of the Capacitated P-Median (CPMP) and the Capacitated Minimum Spanning Tree (CMST) problems. This preliminary approach provides an efficient (in terms of power consumption due to emission or signal interferences)… IEEE	2012-09-01
A discrete Particle Swarm Optimization Algorithm for Mobile Network Deployment Problems Authors: J. Plaza-Laina,J. Del Ser,Antonio Portilla-Figueras,P. Garcia-Diaz,Sancho Salcedo-Sanz In this paper we present a hybrid discrete Particle Swarm Optimization (PSO) algorithm for the Mobile Network Deployment Problem (MNDP). First, we fully describe the MNDP, including a term for taking into account the Electromagnetic field produced by new locations of BTSs. We also describe the… IEEE	2012-09-01
Spectrum band and RAT selection for infrastructure governed opportunistic networks Authors: Mustonen, Miia,Matinmikko, Marja,Höyhtyä, Marko,Del Ser,Javier,Sarvanko, Heli This paper presents a modular decision flow for the selection of radio access technique (RAT), carrier frequency, and bandwidth for opportunistic networks that are operator governed temporary extensions of mobile communication network infrastructures. In this study the emphasis is placed on finding… IEEE	2012-09-01
A heuristically-driven multi-criteria tool for the design of efficient open WiFi access networks Authors: Sancho Salcedo-Sanz,Itziar Landa-Torres,Diana Manjarres,Sergio Gil-Lopez,J. Del Ser This paper presents a novel heuristic multi-criteria tool capable of generating open-access wireless network deployments by exploiting the existing broadband infrastructure. Specifically, an external user dynamically selects, by virtue of our proposed scheme, a certain network layout depending on… IEEE	2012-09-01
PATHS: Personalising access to cultural heritage spaces Authors: Fernie K.,Griffiths J.,Stevenson M.,Clough P.,Goodale P.,Hall M.,Archer P.,Chandrinos K.,Agirre E.,De Lacalle O.L. Digitisation of the cultural heritage means that a significant amount of material is now available through online digital library portals. However, the vast quantity of cultural heritage material can also be overwhelming for many users who lack knowledge of the collections, subject knowledge and… IEEE	2012-09-01
Approaching Sentiment Analysis by using semi-supervised learning of multi-dimensional classifiers Authors: Manuel Lucania,Jose A. Lozano,Iñaki Inza,J.D. Rodriguez,Jonathan Ortigosa-Hernández,Leandro Alzate Sentiment Analysis is defined as the computational study of opinions, sentiments and emotions expressed in text. Within this broad field, most of the work has been focused on either Sentiment Polarity classification, where a text is classified as having positive or negative sentiment, or… Elsevier BV	2012-09-01
A high-temporal resolution algorithm to discriminate shockable from nonshockable rhythms in adults and children Authors: Elisabete Aramendi,Unai Irusta,Jesus Ruiz,Sofía Ruiz de Gauna,Erik Alonso,Unai Ayala To design the core algorithm of a high-temporal resolution rhythm analysis algorithm for automated external defibrillators (AEDs) valid for adults and children. Records from adult and paediatric patients were used all together to optimize and test the performance of the algorithm.A total of 574… Elsevier BV	2012-09-01
On the stability of self-similar solutions of 1D cubic Schrödinger equations Authors: Susana Gutiérrez,Luis Vega 38 pages, 8 figures Springer Science and Business Media LLC	2012-08-28
Molecular Dynamics Simulations of Iron- and Aluminum-Loaded Serum Transferrin: Protonation of Tyr188 Is Necessary To Prompt Metal Release Authors: Mujika, J.I.,Escribano, B.,Akhmatskaya, E.,Ugalde, J.M.,Lopez, X. Serum transferrin (sTf) carries iron in blood serum and delivers it into cells by receptor-mediated endocytosis. The protein can also bind other metals, including aluminum. The crystal structures of the metal-free and metal-loaded protein indicate that the metal release process involves an opening… American Chemical Society (ACS)	2012-08-23
A novel heuristic approach for distance- and connectivity-based multihop node localization in wireless sensor networks Authors: Manjarres, D.,Del Ser, J.,Gil-Lopez, S.,Vecchio, M.,Landa-Torres, I.,Lopez-Valcarce, R. The availability of accurate location information of constituent nodes becomes essential in many applications of wireless sensor networks. In this context, we focus on anchor-based networks where the position of some few nodes are assumed to be fixed and known a priori, whereas the location of all… Springer Science and Business Media LLC	2012-08-02
EChO Authors: G. Tinetti,J. P. Beaulieu,T. Henning,M. Meyer,G. Micela,I. Ribas,D. Stam,M. Swain,O. Krause,M. Ollivier,E. Pace,B. Swinyard,A. Aylward,R. van Boekel,A. Coradini,T. Encrenaz,I. Snellen,M. R. Zapatero-Osorio,J. Bouwman,J. Y-K. Cho,V. Coudé de Foresto,T.… A dedicated mission to investigate exoplanetary atmospheres represents a major milestone in our quest to understand our place in the universe by placing our Solar System in context and by addressing the suitability of planets for the presence of life. EChO -the Exoplanet Characterisation… Springer Science and Business Media LLC	2012-08-02
Ground-based observations of the long-term evolution and death of Saturn’s 2010 Great White Spot Authors: Ricardo Hueso,Agustín Sánchez-Lavega,Jon Legarreta,Enrique Garcia-Melendo,David Barrado-Navascués,M. Delcroix,Santiago Pérez-Hoyos,Josep M. Gomez-Forrellad,Teresa del Río-Gaztelurrutia,Jorge Lillo We report on the long-term evolution of Saturn’s sixth Great White Spot (GWS) event that initiated at northern mid-latitudes of the planet on December 5th, 2010 (Fletcher, L. et al. [2011]. Science 332, 1413–1417; Sanchez-Lavega, A. et al. [2011]. Nature 475, 71–74; Fischer, G. et al. [2011].… Elsevier BV	2012-08-01
A new grouping genetic algorithm for clustering problems Authors: L. E. Agustín-Blas,Sancho Salcedo-Sanz,Jose A. Portilla-Figueras,J. Del Ser,Silvia Jiménez-Fernández,L. Carro-Calvo Highlights? A hybrid grouping-encoding algorithm for clustering problems is presented. ? Details on the encoding, operators and parallelization are given. ? Results in synthetic and real clustering problems are provided. In this paper we present a novel grouping genetic algorithm for clustering… Elsevier BV	2012-08-01
Evaluating the Internationalization Success of Companies Through a Hybrid Grouping Harmony Search—Extreme Learning Machine Approach Authors: J.M. Leiva-Murillo,Sergio Gil-Lopez,M. Miranda,Itziar Landa-Torres,Sancho Salcedo-Sanz,J. Del Ser,María Jesús Segovia-Vargas,E. G. Ortiz-Garcia The internationalization of a company is widely understood as the corporative strategy for growing through external markets. It usually embodies a hard process, which affects diverse activities of the value chain and impacts on the organizational structure of the company. There is not a general… Institute of Electrical and Electronics Engineers (IEEE)	2012-08-01
Dynamic modeling of the morphology of multiphase waterborne polymer particles Authors: Akhmatskaya, E.,Asua, J.M. Multiphase waterborne polymer particles provide advantages in more demanding applications, and their performance depends on particle morphology. Currently, no dynamic model for the prediction of the development of the morphology of multiphase latex particles is available. In this work, a model was… Springer Science and Business Media LLC	2012-07-29
Evolving NK-complexity for evolutionary solvers Authors: Alexander Mendiburu,Jose A. Lozano,Roberto Santana In this paper we empirically investigate the structural characteristics that can help to predict the complexity of NK-landscape instances for estimation of distribution algorithms (EDAs). We evolve instances that maximize the EDA complexity in terms of its success rate. Similarly, instances that… ACM	2012-07-07
Effects of Second-Order Extreme Waves on the Dynamics of a Non-Linear Floating Body Authors: Nava V.,Arena F. Nowadays technical and scientific communities are increasingly interested in the development of technologies for floating devices which can serve different purposes both in coastal and offshore environment. Thus, strong effort is required in the development of correct and efficient algorithms for… American Society of Mechanical Engineers	2012-07-01
Editorial Authors: S. Gil-López,S. Salcedo-Sanz,J. Del Ser Elsevier BV	2012-07-01
Suppression of the cardiopulmonary resuscitation artefacts using the instantaneous chest compression rate extracted from the thoracic impedance Authors: Jo Kramer-Johansen,Trygve Eftestøl,Elisabete Aramendi,Unai Ayala,Unai Irusta,Erik Alonso To demonstrate that the instantaneous chest compression rate can be accurately estimated from the transthoracic impedance (TTI), and that this estimated rate can be used in a method to suppress cardiopulmonary resuscitation (CPR) artefacts.A database of 372 records, 87 shockable and 285 non-… Elsevier BV	2012-06-01
Foraging Ecology in Mehely's Horseshoe Bats: Influence of Habitat Structure and Water Availability Authors: Inmaculada Arostegui,Urtzi Goiti,Joxerra Aihartza,Inazio Garin,Egoitz Salsamendi,David Almenar (Uploaded by Plazi for the Bat Literature Project) The climate in Mediterranean ecosystems is characterised by aestival hot temperatures and water shortages which may affect the behaviour of bats living in these environments. We evaluated the influence of habitat type, habitat structure, and water… Museum and Institute of Zoology at the Polish Academy of Sciences	2012-06-01
An analysis of the use of probabilistic modeling for synaptic connectivity prediction from genomic data Authors: Jose A. Lozano,Alexander Mendiburu,Roberto Santana The identification of the specific genes that influence particular phenotypes is a common problem in genetic studies. In this paper we address the problem of determining the influence of gene joint expression in synapse predictability. The question is posed as an optimization problem in which the… IEEE	2012-06-01
Structural transfer using EDAs: An application to multi-marker tagging SNP selection Authors: Alexander Mendiburu,Roberto Santana,Jose A. Lozano In this paper we investigate the question of transfer learning in evolutionary optimization using estimation of distribution algorithms. We propose a framework for transfer learning between related optimization problems by means of structural transfer. Different methods for incrementing or… IEEE	2012-06-01
Cloud structure of Saturn’s 2010 storm from ground-based visual imaging Authors: Sanz-Requena, J. F.,Pérez-Hoyos, S.,Sánchez-Lavega, A.,del Río-Gaztelurrutia, T.,Barrado-Navascués, D.,Colas, F.,Lecacheux, J.,Parker, D. Abstract We present a study of the vertical cloud structure for the initial stage of the Great White Spot (GWS), a giant storm that developed in Saturn in December 2010, using ground-based visual images. We focus in the characterization of the undisturbed atmosphere preceding the storm and the… Elsevier BV	2012-05-01
Lower bounds for non-trivial travelling wave solutions of equations of KdV type Authors: Carlos E. Kenig,Luis Vega,Gustavo Ponce We prove that if a solution of an equation of KdV type is bounded above by a traveling wave with an amplitude that decays faster than a given linear exponential then it must be zero. We assume no restrictions neither on the size nor in the direction of the speed of the traveling wave. IOP Publishing	2012-04-02
A novel grouping harmony search algorithm for the multiple-type access node location problem Authors: Itziar Landa-Torres,Jose A. Portilla-Figueras,Sancho Salcedo-Sanz,Sergio Gil-Lopez,J. Del Ser In this paper we present a novel grouping harmony search algorithm for the Access Node Location Problem (ANLP) with different types of concentrators. The ANLP is a NP-hard problem where a set of distributed terminals, with distinct rate demands, must be assigned to a variable number of… Elsevier BV	2012-04-01