Now showing items 1-20 of 50

    • Visual Explanation of the Complexity in Julia Sets 

      Schrijvers, Okke; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Julia sets based on quadratic polynomials have a very simple definition, yet a highly intricate shape. Our contribution is to provide a visual explanation for this complexity. To this end we show the construction of Julia ...
    • Complexity Plots 

      Thiyagalingam, Jeyarajan; Walton, Simon; Duffy, Brian; Trefethen, Anne; Chen, Min (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In this paper, we present a novel visualization technique for assisting the observation and analysis of algorithmic complexity. In comparison with conventional line graphs, this new technique is not sensitive to the units ...
    • Visual Analysis of Set Relations in a Graph 

      Xu, Panpan; Du, Fan; Cao, Nan; Shi, Conglei; Zhou, Hong; Qu, Huamin (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Many applications can be modeled as a graph with additional attributes attached to the nodes. For example, a graph can be used to model the relationship of people in a social media website or a bibliographical dataset. ...
    • Continuous Representation of Projected Attribute Spaces of Multifields over Any Spatial Sampling 

      Molchanov, Vladimir; Fofonov, Alexey; Linsen, Lars (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      For the visual analysis of multidimensional data, dimension reduction methods are commonly used to project to a lower-dimensional visual space. In the context of multifields, i.e., volume data with a multidimensional ...
    • Towards Multifield Scalar Topology Based on Pareto Optimality 

      Huettenberger, Lars; Heine, Christian; Carr, Hamish; Scheuermann, Gerik; Garth, Christoph (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      How can the notion of topological structures for single scalar fields be extended to multifields? In this paper we propose a definition for such structures using the concepts of Pareto optimality and Pareto dominance. Given ...
    • Fingerprint Matrices: Uncovering the Dynamics of Social Networks in Prose Literature 

      Oelke, Daniela; Kokkinakis, Dimitrios; Keim, Daniel A. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In prose literature often complex dynamics of interpersonal relationships can be observed between the different characters. Traditionally, node-link diagrams are used to depict the social network of a novel. However, static ...
    • Evolutionary Visual Exploration: Evaluation With Expert Users 

      Boukhelifa, Nadia; Cancino, Waldo; Bezerianos, Anastasia; Lutton, Evelyne (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present an Evolutionary Visual Exploration (EVE) system that combines visual analytics with stochastic optimisation to aid the exploration of multidimensional datasets characterised by a large number of possible views ...
    • Spatially Efficient Design of Annotated Metro Maps 

      Wu, Hsiang-Yun; Takahashi, Shigeo; Hirono, Daichi; Arikawa, Masatoshi; Lin, Chun-Cheng; Yen, Hsu-Chun (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Annotating metro maps with thumbnail photographs is a commonly used technique for guiding travelers. However, conventional methods usually suffer from small labeling space around the metro stations, especially when they ...
    • Maximum Entropy Summary Trees 

      Karloff, Howard; Shirley, Kenneth E. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Given a very large, node-weighted, rooted tree on, say, n nodes, if one has only enough space to display a knode summary of the tree, what is the most informative way to draw the tree? We define a type of weighted tree ...
    • Visualizing Large-scale Parallel Communication Traces Using a Particle Animation Technique 

      Sigovan, Carmen M.; Muelder, Chris W.; Ma, Kwan-Liu (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Large-scale scientific simulations require execution on parallel computing systems in order to yield useful results in a reasonable time frame. But parallel execution adds communication overhead. The impact that this ...
    • User-driven Feature Space Transformation 

      Mamani, Gladys M. H.; Fatore, Francisco M.; Nonato, Luis G.; Paulovich, Fernando V. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Interactive visualization systems for exploring and manipulating high-dimensional feature spaces have experienced a substantial progress in the last few years. State-of-art methods rely on solid mathematical and computational ...
    • Preface and Table of Contents 

      B. Preim, P. Rheingans, and H. Theisel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
    • A Primal/ Dual Representation for Discrete Morse Complexes on Tetrahedral Meshes 

      Weiss, Kenneth; Iuricich, Federico; Fellegara, Riccardo; Floriani, Leila De (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We consider the problem of computing discrete Morse and Morse-Smale complexes on an unstructured tetrahedral mesh discretizing the domain of a 3D scalar field. We use a duality argument to define the cells of the descending ...
    • imMens: Real-time Visual Querying of Big Data 

      Liu, Zhicheng; Jiang, Biye; Heer, Jeffrey (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Data analysts must make sense of increasingly large data sets, sometimes with billions or more records.We present methods for interactive visualization of big data, following the principle that perceptual and interactive ...
    • An Interactive Analysis and Exploration Tool for Epigenomic Data 

      Younesy, Hamidreza; Nielsen, Cydney B.; Möller, Torsten; Alder, Olivia; Cullum, Rebecca; Lorincz, Matthew C.; Karimi, Mohammad M.; Jones, Steven J. M. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In this design study, we present an analysis and abstraction of the data and tasks related to the domain of epigenomics, and the design and implementation of an interactive tool to facilitate data analysis and visualization ...
    • Interactive Extraction and Tracking of Biomolecular Surfaces Features 

      Krone, Michael; Reina, Guido; Schulz, Christoph; Kulschewski, Tobias; Pleiss, Jürgen; Ertl, Thomas (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present a coordinated-view application for the analysis of molecular surface features like cavities, channels and pockets. Our tool employs object-space ambient occlusion for the detection of such features and tracks ...
    • ViviSection: Skeleton-based Volume Editing 

      Karimov, Alexey; Mistelbauer, Gabriel; Schmidt, Johanna; Mindek, Peter; Schmidt, Elisabeth; Sharipov, Timur; Bruckner, Stefan; Gröller, Eduard (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Volume segmentation is important in many applications, particularly in the medical domain. Most segmentation techniques, however, work fully automatically only in very restricted scenarios and cumbersome manual editing of ...
    • Vector Field k-Means: Clustering Trajectories by Fitting Multiple Vector Fields 

      Ferreira, Nivan; Klosowski, James T.; Scheidegger, Carlos E.; Silva, Cláudio T. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Scientists study trajectory data to understand trends in movement patterns, such as human mobility for traffic analysis and urban planning. In this paper, we introduce a novel trajectory clustering technique whose central ...
    • AOI Rivers for Visualizing Dynamic Eye Gaze Frequencies 

      Burch, Michael; Kull, Andreas; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      It is difficult to explore and analyze eye gaze trajectories for commonly applied visual task solution strategies because such data shows complex spatio-temporal structure. In particular, the traditional eye gaze plots of ...
    • ExPlates: Spatializing Interactive Analysis to Scaffold Visual Exploration 

      Javed, Waqas; Elmqvist, Niklas (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Visual exploration involves using visual representations to investigate data where the goals of the process are unclear and poorly defined. However, this often places unduly high cognitive load on the user, particularly ...