Now showing items 21-40 of 50

    • Hybrid ROI-based visualization of medical models 

      Campoalegre Vera, Lazaro; Navazo Álvaro, Isabel; Brunet Crosa, Pere (2015)
      Conference lecture
      Open Access
      There is an increasing interest on tele-medicine and tele-diagnostic solutions based on the remote inspection of volume data coming from multimodal imaging. Client-server architectures meet these functionalities. The use ...
    • Improving perception accuracy in bar charts with internal contrast and framing enhancements 

      Díaz Iriberri, José; Meruvia Pastor, Oscar; Vázquez Alcocer, Pere Pau (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      Bar charts are among the most commonly used visualization graphs. Their main goal is to communicate quantities that can be visually compared. Since they are easy to produce and interpret, they are found in any situation ...
    • Instant visualization of secondary structures of molecular models 

      Hermosilla, Pedro; Guallar, Víctor; Vinacua Pla, Álvaro; Vázquez Alcocer, Pere Pau (European Association for Computer Graphics (Eurographics), 2015)
      Conference report
      Open Access
      Molecular Dynamics simulations are of key importance in the drug design field. Among all possible representations commonly used to inspect these simulations, Ribbons has the advantage of giving the expert a good overview ...
    • Integrating occlusion culling and levels of detail through hardly-visible sets 

      Andújar Gran, Carlos Antonio; Saona Vázquez, Carlos Luis; Navazo Álvaro, Isabel; Brunet Crosa, Pere (North Holland, 2000-12)
      Article
      Restricted access - publisher's policy
      Occlusion culling and level-of-detail rendering have become two powerful tools for accelerating the handling of very large models in real-time visualization applications. We present a framework that combines both techniques ...
    • LISPmon: Monitoring the LISP pilont network 

      Ramírez Ochoa, Alberto Alfonso (Universitat Politècnica de Catalunya, 2010-12-22)
      Master thesis (pre-Bologna period)
      Open Access
      El objetivo del proyecto LISPmon es facilitar la visualización y comparación de información sobre el prototipo LISP con el uso de tablas y gráficas. Esto supondrá un mayor seguimiento, sobretodo, por los participantes de ...
    • Making nonlinear manifold learning models interpretable: the manifold grand tour 

      Lisboa, Paulo J.G.; Martin, Jose D.; Vellido Alcacena, Alfredo (2015-12)
      Article
      Open Access
      Dimensionality reduction is required to produce visualisations of high dimensional data. In this framework, one of the most straightforward approaches to visualising high dimensional data is based on reducing complexity ...
    • Mining structured Petri nets for the visualization of process behavior 

      San Pedro Martín, Javier de; Cortadella, Jordi (Association for Computing Machinery (ACM), 2016)
      Conference report
      Open Access
      Visualization is essential for understanding the models obtained by process mining. Clear and efficient visual representations make the embedded information more accessible and analyzable. This work presents a novel approach ...
    • Modalflow: cross-origin flow data visualization for urban mobility 

      Pérez Messina, Ignacio; Graells Garrido, Eduardo; Lobo, María Jesús; Hurter, Christophe (MDPI, 2020)
      Article
      Open Access
      Pervasive data have become a key source of information for mobility and transportation analyses. However, as a secondary source, it has a different methodological origin than travel survey data, usually relying on unsupervised ...
    • Network community cluster-based analysis for the identification of potential leukemia drug targets 

      Rodríguez Bazaga, Adrián; Vellido Alcacena, Alfredo (Springer, 2019)
      Conference lecture
      Open Access
      Leukemia is a hematologic cancer which develops in blood tissue and causes rapid generation of immature and abnormal-shaped white blood cells. It is one of the most prominent causes of death in both men and women for which ...
    • Octree-based view-dependent triangle meshes 

      Fairén González, Marta; Trueba Hornero, Ramón (2007)
      Conference report
      Restricted access - publisher's policy
      In this paper we present a new technique for view-dependent LOD rendering, where the scene is represented through an octree model from which we can obtain a triangle mesh corresponding to a view-dependent LOD. We present ...
    • On the benefits for model regularization of a variational formulation of GTM 

      Olier Caparroso, Iván; Vellido Alcacena, Alfredo (IEEE, 2008)
      Conference report
      Open Access
      Generative Topographic Mapping (GTM) is a manifold learning model for the simultaneous visualization and clustering of multivariate data. It was originally formulated as a constrained mixture of distributions, for which ...
    • On the improvement of the mapping trustworthiness and continuity of a manifold learning model 

      Cruz Barbosa, Raúl; Vellido Alcacena, Alfredo (2008-11)
      Article
      Restricted access - publisher's policy
      Manifold learningmethodsmodel high-dimensional data through low-dimensional manifolds embedded in the observed data space. This simplification implies that their are prone to trustworthiness and continuity errors. Generative ...
    • ParaView + Alya + D8tree: Integrating high performance computing and high performance data analytics 

      Artigues, Antoni; Cugnasco, Cesare; Becerra Fontal, Yolanda; Cucchietti, Fernando; Houzeaux, Guillaume; Vázquez, Mariano; Torres Viñals, Jordi; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Elsevier, 2017)
      Article
      Open Access
      Large scale time-dependent particle simulations can generate massive amounts of data, making it so that storing the results is often the slowest phase and the primary time bottleneck of the simulation. Furthermore, analysing ...
    • Photon-counting double-random-phase encoding for secure image verification and retrieval 

      Pérez Cabré, Elisabet; Abril Báez, Héctor; Millán Garcia-Varela, M. Sagrario; Javidi, Bahram (Institute of Physics (IOP), 2012-09)
      Article
      Open Access
    • Physics-based visual characterization of molecular interaction forces 

      Hermosilla, Pedro; Estrada, Jorge; Guallar, Víctor; Ropinski, Timo; Vinacua Pla, Álvaro; Vázquez Alcocer, Pere Pau (2017-01-01)
      Article
      Open Access
      Molecular simulations are used in many areas of biotechnology, such as drug design and enzyme engineering. Despite the development of automatic computational protocols, analysis of molecular interactions is still a major ...
    • Probability ridges and distortion flows: Visualizing multivariate time series using a variational Bayesian manifold learning method 

      Tosi, Alessandra; Olier, Iván; Vellido Alcacena, Alfredo (Springer, 2014)
      Conference report
      Open Access
      Time-dependent natural phenomena and artificial processes can often be quantitatively expressed as multivariate time series (MTS). As in any other process of knowledge extraction from data, the analyst can benefit from the ...
    • Quarry: A user-centered big data integration platform 

      Jovanovic, Petar; Nadal Francesch, Sergi; Romero Moral, Óscar; Abelló Gamazo, Alberto; Bilalli, Besim (2021-02)
      Article
      Open Access
      Obtaining valuable insights and actionable knowledge from data requires cross-analysis of domain data typically coming from various sources. Doing so, inevitably imposes burdensome processes of unifying different data ...
    • Real-time molecular visualization supporting diffuse interreflections and ambient occlusion 

      Skanberg, Robin; Vázquez Alcocer, Pere Pau; Guallar, Victor; Ropinski, Timo (2016-01-01)
      Article
      Open Access
      Today molecular simulations produce complex data sets capturing the interactions of molecules in detail. Due to the complexity of this time-varying data, advanced visualization techniques are required to support its visual ...
    • Relación entre calidad percibida y afinidad emocional de imágenes arquitectónicas en función del dispositivo de visualización. Recomendaciones para su uso docente 

      Fonseca Escudero, David; Pifarré, Marc; Redondo Domínguez, Ernesto (2013-06)
      Article
      Open Access
      En la educación universitaria en general y especialmente la relacionada con la arquitectura, el uso de imágenes digitales está generalizado. No obstante, dicho uso dista de estar optimizado ya que tanto alumnos como profesores ...
    • Research issues in data modeling for scientific visualization 

      Nielson, Gregory M; Brunet Crosa, Pere; Gross, Markus; Hagen, Hans; Klimenko, S.V. (1994-02)
      Article
      Open Access
      This article summarizes some topics of modeling as they impinge on the future development of scientific data visualization. The benefits from visualization techniques in analyzing data are well established, but to build ...