Volume 32 (2013): Recent submissions

Now showing items 161-180 of 255

    • Mass-Dependent Integral Curves in Unsteady Vector Fields 

      Günther, Tobias; Kuhn, Alexander; Kutz, Benjamin; Theisel, Holger (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Recent research in flow visualization is focusing on the analysis of time-dependent, but mass-less particles. However, in many application scenarios, the mass of particles - and their resulting inertia - is essential in ...

    • 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 ...

    • Small Multiples, Large Singles: A New Approach for Visual Data Exploration 

      Elzen, Stef van den; Wijk, Jarke J. van (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present a novel visual exploration method based on small multiples and large singles for effective and efficient data analysis. Users are enabled to explore the state space by offering multiple alternatives from the ...

    • Gestaltlines 

      Brandes, Ulrik; Nick, Bobo; Rockstroh, Brigitte; Steffen, Astrid (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We propose a general technique to visualize multivariate data sequences. It is based on a symbiotic combination of three powerful concepts from information visualization: sparklines, glyphs and gestalt theory. By visualizing ...

    • Scale-Stack Bar Charts 

      Hlawatsch, Marcel; Sadlo, Filip; Burch, Michael; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      It is difficult to create appropriate bar charts for data that cover large value ranges. The usual approach for these cases employs a logarithmic scale, which, however, suffers from issues inherent to its non-linear mapping: ...

    • TAMRESH - Tensor Approximation Multiresolution Hierarchy for Interactive Volume Visualization 

      Suter, Susanne K.; Makhynia, Maxim; Pajarola, Renato (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Interactive visual analysis of large and complex volume datasets is an ongoing and challenging problem. We tackle this challenge in the context of state-of-the-art out-of-core multiresolution volume rendering by introducing ...

    • A Visual Approach to Investigating Shared and Global Memory Behavior of CUDA Kernels 

      Rosen, Paul (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present an approach to investigate the memory behavior of a parallel kernel executing on thousands of threads simultaneously within the CUDA architecture. Our top-down approach allows for quickly identifying any significant ...

    • 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 ...

    • Nonparametric Models for Uncertainty Visualization 

      Pöthkow, Kai; Hege, Hans-Christian (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      An uncertain (scalar, vector, tensor) field is usually perceived as a discrete random field with a priori unknown probability distributions. To compute derived probabilities, e.g. for the occurrence of certain features, ...

    • 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 ...

    • HiFiVE: A Hilbert Space Embedding of Fiber Variability Estimates for Uncertainty Modeling and Visualization 

      Schultz, Thomas; Schlaffke, Lara; Schölkopf, Bernhard; Schmidt-Wilcke, Tobias (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Obtaining reproducible fiber direction estimates from diffusion MRI is crucial for successful fiber tracking. Modeling and visualizing the probability distribution of the inferred fiber directions is an important step in ...

    • 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 ...

    • Towards High-dimensional Data Analysis in Air Quality Research 

      Engel, Daniel; Hummel, Mathias; Hoepel, Florian; Bein, Keith; Wexler, Anthony; Garth, Christoph; Hamann, Bernd; Hagen, Hans (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Analysis of chemical constituents from mass spectrometry of aerosols involves non-negative matrix factorization, an approximation of high-dimensional data in lower-dimensional space. The associated optimization problem is ...

    • 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 ...

    • VisRuption: Intuitive and Efficient Visualization of Temporal Airline Disruption Data 

      Rosenthal, Paul; Pfeiffer, Linda; Müller, Nicholas H.; Ohler, Peter (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      The operation of an airline is a very complex task and disruptions to the planned operation can occur on very short notice. Already a small disruption like a delay of some minutes can cost the airline a tremendous amount ...

    • 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. ...

    • Evaluation of Attention-Guiding Video Visualization 

      Kurzhals, Kuno; Höferlin, Markus; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We investigate four different variants of attention-guiding video visualization techniques that aim to help users distribute their attention equally among potential objects of interest: bounding box visualization, ...

    • EvalBench: A Software Library for Visualization Evaluation 

      Aigner, Wolfgang; Hoffmann, Stephan; Rind, Alexander (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      It is generally acknowledged in visualization research that it is necessary to evaluate visualization artifacts in order to provide empirical evidence on their effectiveness and efficiency as well as their usability and ...

    • 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 ...

    • Progressive High-Quality Response Surfaces for Visually Guided Sensitivity Analysis 

      Demir, Ismael; Westermann, Rüdiger (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In this paper we present a technique which allows us to perform high quality and progressive response surface prediction from multidimensional input samples in an efficient manner. We utilize kriging interpolation to ...