Now showing items 341-360 of 762

    • Exploring Collections of Tagged Text for Literary Scholarship 

      Correll, Michael; Witmore, M.; Gleicher, M. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Modern literary scholars must combine access to vast collections of text with the traditional close analysis of their field. In this paper, we discuss the design and development of tools to support this work. Based on ...
    • Efficient Parallel Vectors Feature Extraction from Higher-Order Data 

      Pagot, Christian; Osmari, D.; Sadlo, F.; Weiskopf, Daniel; Ertl, Thomas; Comba, J. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      The parallel vectors (PV) operator is a feature extraction approach for defining line-type features such as creases (ridges and valleys) in scalar fields, as well as separation, attachment, and vortex core lines in vector ...
    • PaperVis: Literature Review Made Easy 

      Chou, Jia -Kai; Yang, C. -K. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Reviewing literatures for a certain research field is always important for academics. One could use Google-like information seeking tools, but oftentimes he/she would end up obtaining too many possibly related papers, as ...
    • A Visual Analytics Approach for Peak-Preserving Prediction of Large Seasonal Time Series 

      Hao, M. C.; Janetzko, H.; Mittelstädt, S.; Hill, W.; Dayal, U.; Keim, D. A.; Marwah, M.; Sharma, R. K. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Time series prediction methods are used on a daily basis by analysts for making important decisions. Most of these methods use some variant of moving averages to reduce the number of data points before prediction. However, ...
    • Interactive Visual Analysis of Temporal Cluster Structures 

      Turkay, Cagatay; Parulek, J.; Reuter, N.; Hauser, Helwig (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Cluster analysis is a useful method which reveals underlying structures and relations of items after grouping them into clusters. In the case of temporal data, clusters are defined over time intervals where they usually ...
    • Visual Exploration of Time-Series Data with Shape Space Projections 

      Ward, Matthew O.; Guo, Zhenyu (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Time-series data is a common target for visual analytics, as they appear in a wide range of application domains. Typical tasks in analyzing time-series data include identifying cyclic behavior, outliers, trends, and periods ...
    • Illustrative Molecular Visualization with Continuous Abstraction 

      Zwan, Matthew van der; Lueks, Wouter; Bekker, Henk; Isenberg, Tobias (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Molecular systems may be visualized with various degrees of structural abstraction, support of spatial perception, and 'illustrativeness.' In this work we propose and realize methods to create seamless transformations that ...
    • Interactive Exploration of Protein Cavities 

      Krone, M.; Falk, M.; Rehm, S.; Pleiss, J.; Ertl, T. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We present a novel application for the interactive exploration of cavities within proteins in dynamic data sets. Inside a protein, cavities can often be found close to the active center. Therefore, when analyzing a molecular ...
    • Topology-based Visualization of Transformation Pathways in Complex Chemical Systems 

      Beketayev, Kenes; Weber, G. H.; Haranczyk, M.; Bremer, P.-T.; Hlawitschka, M.; Hamann, B. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Studying transformation in a chemical system by considering its energy as a function of coordinates of the system's components provides insight and changes our understanding of this process. Currently, a lack of effective ...
    • Progressive Splatting of Continuous Scatterplots and Parallel Coordinates 

      Heinrich, Julian; Bachthaler, S.; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Continuous scatterplots and parallel coordinates are used to visualize multivariate data defined on a continuous domain. With the existing techniques, rendering such plots becomes prohibitively slow, especially for large ...
    • Visual Coherence for Large-Scale Line-Plot Visualizations 

      Muigg, Philipp; Hadwiger, Markus; Doleisch, Helmut; Gröller, Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Displaying a large number of lines within a limited amount of screen space is a task that is common to many different classes of visualization techniques such as time-series visualizations, parallel coordinates, link-node ...
    • Curve Density Estimates 

      Lampe, Ove Daae; Hauser, Helwig (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      In this work, we present a technique based on kernel density estimation for rendering smooth curves. With this approach, we produce uncluttered and expressive pictures, revealing frequency information about one, or, multiple ...
    • Topology-based Smoothing of 2D Scalar Fields with C1-Continuity 

      Weinkauf, Tino; Gingold, Yotam; Sorkine, Olga (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Data sets coming from simulations or sampling of real-world phenomena often contain noise that hinders their processing and analysis. Automatic filtering and denoising can be challenging: when the nature of the noise is ...
    • Multi-layer Depth Peeling by Single-Pass Hardware Rasterisation for Faster Isosurface Raytracing on a GPU 

      Liu, Baoquan; Clapworthy, Gordon J.; Dong, Feng (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Empty-space skipping is an essential acceleration technique for volume rendering. Image-order empty-space skipping is not well suited to GPU implementation, since it must perform checks on, essentially, a per-sample basis, ...
    • Non-iterative Second-order Approximation of Signed Distance Functions for Any Isosurface Representation 

      Molchanov, Vladimir; Rosenthal, Paul; Linsen, Lars (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Signed distance functions (SDF) to explicit or implicit surface representations are intensively used in various computer graphics and visualization algorithms. Among others, they are applied to optimize collision detection, ...
    • Visualization and Analysis-Oriented Reconstruction of Material Interfaces 

      Meredith, Jeremy; Childs, Hank (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Reconstructing boundaries along material interfaces from volume fractions is a difficult problem, especially because the under-resolved nature of the input data allows for many correct interpretations. Worse, algorithms ...
    • A Salience-based Quality Metric for Visualization 

      Jänicke, Heike; Chen, Min (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Salience detection is a principle mechanism to facilitate visual attention. A good visualization guides the observer s attention to the relevant aspects of the representation. Hence, the distribution of salience over a ...
    • Understanding Interactive Legends: a Comparative Evaluation with Standard Widgets 

      Riche, Nathalie Henry; Lee, Bongshin; Plaisant, Catherine (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Interactive information visualization systems rely on widgets to allow users to interact with the data and modify the representation. We define interactive legends as a class of controls combining the visual representation ...
    • The Readability of Path-Preserving Clusterings of Graphs 

      Archambault, Daniel; Purchase, Helen C.; Pinaud, Bruno (The Eurographics Association and Blackwell Publishing Ltd., 2010)
      Graph visualization systems often exploit opaque metanodes to reduce visual clutter and improve the readability of large graphs. This filtering can be done in a path-preserving way based on attribute values associated with ...
    • The Perception of Correlation in Scatterplots 

      Rensink, Ronald A.; Baldridge, Gideon (The Eurographics Association and Blackwell Publishing Ltd., 2010)