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Mostrando ítems 155-174 de 362

    • openAccess   Feature selection in regression tasks using conditional mutual information 

      Latorre Carmona, Pedro; Martínez Sotoca, José; Pla, Filiberto; Phoa, Frederick K. H.; Bioucas-Dias, José Springer (2011)
      This paper presents a supervised feature selection method applied to regression problems. The selectionmethod uses a Dissimilarity matrix originally developed for classification problems, whose applicability is extended ...

    • closedAccess   Federate resource management in a Distributed Virtual Environment 

      Belmonte-Fernández, Óscar; Castañeda Garay, Miguel; Fernández Mota, David; Gil, José; Aguado González, Sergio; Varella Cerdá, Ester; Núñez Redó, Manuela; Segarra Sola, José Vicente Elsevier (2010)
      Most Distributed Virtual Environments use ad hoc protocols to share resources and synchronize interaction over a common virtual world. In this scenario, it is difficult to use new virtual reality devices if they have not ...

    • closedAccess   FIDOS: A generalized Fisher based feature extraction method for domain shift 

      Dinh, Cuong V.; Duin, Robert P. W.; Piqueras Salazar, Ignacio Jaime; Loog, Marco Elsevier (2013)
      Traditional pattern recognition techniques often assume that the data sets used for training and testing follow the same distribution. However, this assumption is usually not true for many real world problems as data from ...

    • openAccess   Filter banks for hyperspectral pixel classification of satellite images 

      Rajadell Rojas, Olga; García-Sevilla, Pedro; Pla, Filiberto Springer Verlag (Germany) (2009)
      Satellite hyperspectral imaging deals with heterogenous images containing different texture areas. Filter banks are frequently used to characterize textures in the image performing pixel classification. This filters are ...

    • closedAccess   Finding association rules in semantic web data 

      Nebot Romero, Victoria; Berlanga Llavori, Rafael Elsevier (2012-02)
      The amount of ontologies and semantic annotations available on the Web is constantly growing. This new type of complex and heterogeneous graph-structured data raises new challenges for the data mining community. In this ...

    • openAccess   FloU-Net: An Optical Flow Network for Multi-modal Self-Supervised Image Registration 

      Ibáñez Fernández, Damián; Fernández Beltrán, Rubén; Pla, Filiberto Institute of Electrical and Electronics Engineers (2023)
      Image registration is an essential task in image processing, where the final objective is to geometrically align two or more images. In remote sensing, this process allows comparing, fusing or analyzing data, specially ...

    • openAccess   Framework for using online social networks for sustainability awareness 

      Chalmeta, Ricardo; Barbeito Caamaño, Adriana Macarena Emerald (2023-08-10)
      Purpose: This study aims to contribute to the field of computer systems for sustainability research. It proposes a framework for sustainability awareness using online social networks (OSNs) by analyzing major research ...

    • closedAccess   Frequent Consumption of Sugar- and Artificially Sweetened Beverages and Natural and Bottled Fruit Juices Is Associated with an Increased Risk of Metabolic Syndrome in a Mediterranean Population at High Cardiovascular Disease Risk 

      Ferreira-Pêgo, Cíntia; Babio, Nancy; Bes-Rastrollo, Maira; Corella, Dolores; Estruch, Ramon; Ros, Emilio; Fitó, Montserrat; Serra-Majem, Lluis; Arós, Fernando; Fiol Ramis, Miquel; Santos Lozano, José Manuel; Muñoz-Bravo, Carlos; Pintó, Xavier; Ruiz-Canela, Miguel; Salas-Salvadó, Jordi; Coltell, Oscar American Society for Nutrition (2016-08)
      Background: The relation between the consumption of sweetened beverages and metabolic syndrome (MetS) is controversial. Objective: This analysis evaluated the associations between intakes of sugar-sweetened beverages ...

    • openAccess   Future Internet technologies for Environmental Applications 

      Granell, Carlos; Havlik, Denis; Schade, Sven; Sabeur, Zoheir; Delaney, Conor; Pielorz, Jasmin; Usländer, Thomas; Mazzetti, Paolo; Schleidt, Katharina; Kobernus, Mike; Havlik, Fuada; Rune Bodsberg, Nils; Berre, Arne; Mon, Jose Lorenzo Elsevier (2016)
      This paper investigates the usability of Future Internet technologies (aka “Generic Enablers of the Future Internet”) in the context of environmental applications. The paper incorporates the best aspects of the state-of-the-art ...

    • openAccess   Gait recognition from corrupted silhouettes: a robust statistical approach 

      Ortells Lorenzo, Javier; Mollineda, Ramón A.; Mederos, Boris; Martín Félez, Raúl Springer Verlag (2016-07)
      This paper introduces a method based on robust statistics to build reliable gait signatures from averaging silhouette descriptions, mainly when gait sequences are affected by severe and persistent defects. The term robust ...

    • openAccess   Gamification and Virtual Reality for Tongue Rehabilitation 

      Rodríguez, Antonio; Chover, Miguel; Boada, Inma Institute of Electrical and Electronics Engineers Inc. (2023-11-10)
      Purpose: Lingual exercises based on tongue movements are common in speech therapy. These exercises can be tedious for patients, but gamification and virtual reality (VR) with head-mounted displays (HMD) can serve as effective ...

    • openAccess   Gene selection and disease prediction from gene expression data using a two-stage hetero-associative memory 

      Cleofás Sánchez, Laura; Sánchez Garreta, Josep Salvador; García, Vicente Springer Verlag (2019)
      In general, gene expression microarrays consist of a vast number of genes and very few samples, which represents a critical challenge for disease prediction and diagnosis. This paper develops a two-stage algorithm that ...

    • closedAccess   Generating complex ontology instances from documents 

      Danger, Roxana; Berlanga Llavori, Rafael Elsevier (2009)
      This paper presents a novel Information Extraction system able to generate complex instances from free text available on the Web. The approach is based on a non-monotonical processing over ontologies, and makes use of ...

    • openAccess   Genome-Wide Association Study (GWAS) on Bilirubin Concentrations in Subjects with Metabolic Syndrome: Sex-Specific GWAS Analysis and Gene-Diet Interactions in a Mediterranean Population 

      Coltell, Oscar; Asensio, Eva Maria; Sorlí, José V; Barragán-Arnal, Rocío; Fernández-Carrión, Rebeca; Portolés, Olga; CAROLINA, ORTEGA-AZORÍN; Martínez-LaCruz, Raúl; González, José I.; Zanón-Moreno, Vicente; Gimenez Alba, Ignacio Manuel; Fitó, Montserrat; Ros, Emilio; Ordovás Muñoz, José M.; Corella, Dolores MDPI (2019)
      Although, for decades, increased serum bilirubin concentrations were considered a threatening sign of underlying liver disease and had been associated with neonatal jaundice, data from recent years show that bilirubin is ...

    • openAccess   Genome-Wide Association Study for Serum Omega-3 and Omega-6 Polyunsaturated Fatty Acids: Exploratory Analysis of the Sex-Specific Effects and Dietary Modulation in Mediterranean Subjects with Metabolic Syndrome 

      Coltell, Oscar; Sorlí, José V; Asensio, Eva Maria; Barragán-Arnal, Rocío; González, José I.; Gimenez Alba, Ignacio Manuel; Zanón-Moreno, Vicente; Estruch, Ramon; Ramírez-Sabio, Judith B.; Pascual, Eva C.; CAROLINA, ORTEGA-AZORÍN; Ordovas, Jose; Corella, Dolores MDPI (2020)
      Many early studies presented beneficial effects of polyunsaturated fatty acids (PUFA) on cardiovascular risk factors and disease. However, results from recent meta-analyses indicate that this effect would be very low or ...

    • openAccess   Geolocalización en TB: producción de mapas de distribución espacial en TB en Barcelona 

      Dominkovics Coll, Pau; Perez-Navarro, Antoni; Granell, Carlos Esmon (2011)
      Tener en cuenta la componenete geográfica va más allá de representar un punto sobre un mapa: consiste en relacionar geográficamente diversas variables y representarlas conjuntamente para generar información. En este sentido ...

    • openAccess   Geometric approach to non-relativistic quantum dynamics of mixed states 

      Gimeno, Vicent; Martínez Sotoca, José AIP Publishing LLC (2013-05)
      In this paper we propose a geometrization of the non-relativistic quantum mechanics for mixed states. Our geometric approach makes use of the Uhlmann's principal fibre bundle to describe the space of mixed states and as a ...

    • openAccess   Geoskills among academic librarians in Greece, Cyprus and Spain 

      Vardakosta, Ifigenia; Aguilar Moreno, Estefanía; Granell, Carlos; Kapidakis, Sarantos Elsevier (2016)
      Existing literature on Geographic Information (GI) and libraries points out that American and Canadian librarians have long been aware of the intimate relationship between geospatial data and libraries. In Europe, though, ...

    • openAccess   Global earth observation initiatives: European contributions to GEOSS 

      Díaz Sánchez, Laura; Granell, Carlos; Huerta, Joaquin; Simonazzi Domínguez, Walter Novática (2009-04)
      This article provides an introduction to European initiatives relating to spatial and environmental data policy contribut- ing to the Global Earth Observation System of Systems (GEOSS). We begin by describing the background ...

    • openAccess   Graphical Framework for Categorizing Data Capabilities and Properties of Objects in the Internet of Things 

      Ibarra-Esquer, Jorge Eduardo; González-Navarro, Félix Fernando; Sánchez Garreta, Josep Salvador; Flores-Ríos, Brenda Leticia; Astorga Vargas, María Angélica; Gonzalez-Ramirez, Maria-Luisa IEEE (2020-01-27)
      Things are the core of the Internet of Things (IoT) and must be properly characterized according to the different functions they accomplish. Identifying their capabilities and combining them as sets provides a view on the ...