Now showing items 28-47 of 53

    • Parallel Computation of 3D Morse-Smale Complexes 

      Shivashankar, Nithin; Natarajan, Vijay (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      The Morse-Smale complex is a topological structure that captures the behavior of the gradient of a scalar function on a manifold. This paper discusses scalable techniques to compute the Morse-Smale complex of scalar functions ...
    • Perception of Animated Node-Link Diagrams for Dynamic Graphs 

      Ghani, Sohaib; Elmqvist, Niklas; Yi, Ji Soo (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Effective visualization of dynamic graphs remains an open research topic, and many state-of-the-art tools use animated node-link diagrams for this purpose. Despite its intuitiveness, the effectiveness of animation in ...
    • PORGY: A Visual Graph Rewriting Environment for Complex Systems 

      Pinaud, Bruno; Melançon, Guy; Dubois, Jonathan (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Graph rewriting systems (GRSs) operate on graphs by substituting local patterns according to a set of rewriting rules. The apparent simplicity of GRSs hides an incredible complexity and turns the study of these systems ...
    • Porosity Maps - Interactive Exploration and Visual Analysis of Porosity in Carbon Fiber Reinforced Polymers 

      Reh, Andreas; Plank, Bernhard; Kastner, Johann; Gröller, M. Eduard; Heinzl, Christoph (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this work a novel method for the characterization of porosity in carbon fiber reinforced polymers (CFRP) is presented. A visualization pipeline for the interactive exploration and visual analysis of CFRP specimens is ...
    • Preface and Table of Contents 

      Stefan Bruckner and Silvia Miksch and Hanspeter Pfister (The Eurographics Association and Blackwell Publishing Ltd., 2012)
    • Probabilistic Local Features in Uncertain Vector Fields with Spatial Correlation 

      Petz, Christoph; Pöthkow, Kai; Hege, Hans-Christian (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this paper methods for extraction of local features in crisp vector fields are extended to uncertain fields. While in a crisp field local features are either present or absent at some location, in an uncertain field ...
    • Procedural Texture Synthesis for Zoom-Independent Visualization of Multivariate Data 

      Khlebnikov, Rostislav; Kainz, Bernhard; Steinberger, Markus; Streit, Marc; Schmalstieg, Dieter (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Simultaneous visualization of multiple continuous data attributes in a single visualization is a task that is important for many application areas. Unsurprisingly, many methods have been proposed to solve this task. However, ...
    • A Qualitative Study on the Exploration of Temporal Changes in Flow Maps with Animation and Small-Multiples 

      Boyandin, Ilya; Bertini, Enrico; Lalanne, Denis (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We present a qualitative user study analyzing findings made while exploring changes over time in spatial interactions. We analyzed findings made by the study participants with flow maps, one of the most popular representations ...
    • A Quantized Boundary Representation of 2D Flows 

      Levine, Joshua; Jadhav, Shreeraj; Bhatia, Harsh; Pascucci, Valerio; Bremer, Peer-Timo (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Analysis and visualization of complex vector fields remain major challenges when studying large scale simulation of physical phenomena. The primary reason is the gap between the concepts of smooth vector field theory and ...
    • Reliable Adaptive Modelling of Vascular Structures with Non-Circular Cross-Sections 

      Kretschmer, Jan; Beck, Thomas; Tietjen, Christian; Preim, Bernhard; Stamminger, Marc (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Accurate visualizations of complex vascular structures are essential for medical applications, such as diagnosis, therapy planning and medical education. Vascular trees are usually described using centerlines, since they ...
    • Rolled-out Wordles: A Heuristic Method for Overlap Removal of 2D Data Representatives 

      Strobelt, Hendrik; Spicker, Marc; Stoffel, Andreas; Keim, Daniel; Deussen, Oliver (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      When representing 2D data points with spacious objects such as labels, overlap can occur. We present a simple algorithm which modifies the (Mani-)Wordle idea with scan-line based techniques to allow a better placement. We ...
    • Scalable Detection of Spatiotemporal Encounters in Historical Movement Data 

      Bak, Peter; Marder, Mattias; Harary, Sivan; Yaeli, Avi; Ship, Harold J. (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      The widespread adoption of location-aware devices is resulting in the generation of large amounts of spatiotemporal movement data, collected and stored in digital repositories. This forms a fertile ground for domain experts ...
    • Semantic Wordification of Document Collections 

      Paulovich, Fernando V.; Toledo, Franklina M. B.; Telles, Guilherme P.; Minghim, Rosane; Nonato, Luis Gustavo (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Word clouds have become one of the most widely accepted visual resources for document analysis and visualization, motivating the development of several methods for building layouts of keywords extracted from textual data. ...
    • Semi-Supervised Dimensionality Reduction based on Partial Least Squares for Visual Analysis of High Dimensional Data 

      Paiva, Jose Gustavo S.; Schwartz, William Robson; Pedrini, Helio; Minghim, Rosane (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Dimensionality reduction is employed for visual data analysis as a way to obtaining reduced spaces for high dimensional data or to mapping data directly into 2D or 3D spaces. Although techniques have evolved to improve ...
    • StratomeX: Visual Analysis of Large-Scale Heterogeneous Genomics Data for Cancer Subtype Characterization 

      Lex, Alexander; Streit, Marc; Schulz, Hans-Joerg; Partl, Christian; Schmalstieg, Dieter; Park, Peter J.; Gehlenborg, Nils (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      Identification and characterization of cancer subtypes are important areas of research that are based on the integrated analysis of multiple heterogeneous genomics datasets. Since there are no tools supporting this process, ...
    • A Taxonomy of Visual Cluster Separation Factors 

      Sedlmair, Michael; Tatu, Andrada; Munzner, Tamara; Tory, Melanie (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      We provide two contributions, a taxonomy of visual cluster separation factors in scatterplots, and an in-depth qualitative evaluation of two recently proposed and validated separation measures. We initially intended to use ...
    • Tracing Tuples Across Dimensions: A Comparison of Scatterplots and Parallel Coordinate Plots 

      Kuang, Xiaole; Zhang, Haimo; Zhao, Shengdong; McGuffin, Michael J. (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      One of the fundamental tasks for analytic activity is retrieving (i.e., reading) the value of a particular quantity in an information visualization. However, few previous studies have compared user performance in such value ...
    • Travel-Route-Centered Metro Map Layout and Annotation 

      Wu, Hsiang-Yun; Takahashi, Shigeo; Lin, Chun-Cheng; Yen, Hsu-Chun (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      When providing travel guides for a specific route in a metro network, we often place the route around the center of the map and annotate stations on the route with thumbnail photographs. Nonetheless, existing methods do ...
    • Using Signposts for Navigation in Large Graphs 

      May, Thorsten; Steiger, Martin; Davey, James; Kohlhammer, Jörn (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this paper we present a new Focus & Context technique for the exploration of large, abstract graphs. Most Focus & Context techniques present context in a visual way. In contrast, our technique uses a symbolic representation: ...
    • Vismon: Facilitating Analysis of Trade-Offs, Uncertainty, and Sensitivity In Fisheries Management Decision Making 

      Booshehrian, Maryam; Möller, Torsten; Peterman, Randall M.; Munzner, Tamara (The Eurographics Association and Blackwell Publishing Ltd., 2012)
      In this design study, we present an analysis and abstraction of the data and task in the domain of fisheries management, and the design and implementation of the Vismon tool to address the identified requirements. Vismon ...