Browsing 39-Issue 3 by Title

Now showing items 30-49 of 49

    • Quantitative Comparison of Time-Dependent Treemaps 

      Vernier, Eduardo; Sondag, Max; Comba, João; Speckmann, Bettina; Telea, Alexandru; Verbeek, Kevin (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Rectangular treemaps are often the method of choice to visualize large hierarchical datasets. Nowadays such datasets are available over time, hence there is a need for (a) treemaps that can handle time-dependent data, and ...

    • Quantitative Evaluation of Time-Dependent Multidimensional Projection Techniques 

      Vernier, Eduardo Faccin; Garcia, Rafael; Silva, Iron Prando da; Comba, João L. D.; Telea, Alexandru C. (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Dimensionality reduction methods are an essential tool for multidimensional data analysis, and many interesting processes can be studied as time-dependent multivariate datasets. There are, however, few studies and proposals ...

    • QUESTO: Interactive Construction of Objective Functions for Classification Tasks 

      Das, Subhajit; Xu, Shenyu; Gleicher, Michael; Chang, Remco; Endert, Alex (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Building effective classifiers requires providing the modeling algorithms with information about the training data and modeling goals in order to create a model that makes proper tradeoffs. Machine learning algorithms allow ...

    • Reading Traces: Scalable Exploration in Elastic Visualizations of Cultural Heritage Data 

      Bludau, Mark-Jan; Brüggemann, Viktoria; Busch, Anna; Dörk, Marian (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Through a design study, we develop an approach to data exploration that utilizes elastic visualizations designed to support varying degrees of detail and abstraction. Examining the notions of scalability and elasticity in ...

    • Representative Isovalue Detection and Isosurface Segmentation Using Novel Isosurface Measures 

      Wang, Cuilan (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Interval volume is the volume of the region between two isosurfaces. This paper proposes a novel measure, called VOA measure, that is computed based on interval volume and isosurface area. This measure represents the rate ...

    • Resolving Conflicting Insights in Asynchronous Collaborative Visual Analysis 

      Li, Jianping Kelvin; Xu, Shenyu; Ye, Yecong (Chris); Ma, Kwan-Liu (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Analyzing large and complex datasets for critical decision making can benefit from a collective effort involving a team of analysts. However, insights and findings from different analysts are often incomplete, disconnected, ...

    • SEEVis: A Smart Emergency Evacuation Plan Visualization System with Data-Driven Shot Designs 

      Li, Quan; Liu, Yingjie J.; Chen, Li; Yang, Xingchao C.; Peng, Yi; Yuan, Xiaoru R.; Wijerathne, Maddegedara Lalith Lakshman (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Despite the significance of tracking human mobility dynamics in a large-scale earthquake evacuation for an effective first response and disaster relief, the general understanding of evacuation behaviors remains limited. ...

    • SeqDynamics: Visual Analytics for Evaluating Online Problem-solving Dynamics 

      Xia, Meng; Xu, Min; Lin, Chuan-en; Cheng, Ta Ying; Qu, Huamin; Ma, Xiaojuan (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Problem-solving dynamics refers to the process of solving a series of problems over time, from which a student's cognitive skills and non-cognitive traits and behaviors can be inferred. For example, we can derive a student's ...

    • Set Streams: Visual Exploration of Dynamic Overlapping Sets 

      Agarwal, Shivam; Beck, Fabian (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In many applications, membership of set elements changes over time. Since each element can be present in multiple sets, the sets also overlap. As a result, it becomes challenging to visualize the temporal change in set ...

    • Short-Contact Touch-Manipulation of Scatterplot Matrices on Wall Displays 

      Riehmann, Patrick; Molina León, Gabriela; Reibert, Joshua; Echtler, Florian; Froehlich, Bernd (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      This paper presents a short-contact multitouch vocabulary for interacting with scatterplot matrices (SPLOMs) on wall-sized displays. Fling-based gestures overcome central interaction challenges of such large displays by ...

    • Structure and Empathy in Visual Data Storytelling: Evaluating their Influence on Attitude 

      Liem, Johannes; Perin, Charles; Wood, Jo (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In the visualization community, it is often assumed that visual data storytelling increases memorability and engagement, making it more effective at communicating information. However, many assumptions about the efficacy ...

    • Sublinear Time Force Computation for Big Complex Network Visualization 

      Meidiana, Amyra; Hong, Seok-Hee; Torkel, Marnijati; Cai, Shijun; Eades, Peter (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In this paper, we present a new framework for sublinear time force computation for visualization of big complex graphs. Our algorithm is based on the sampling of vertices for computing repulsion forces and edge sparsification ...

    • Sunspot Plots: Model-based Structure Enhancement for Dense Scatter Plots 

      Trautner, Thomas; Bolte, Fabian; Stoppel, Sergej; Bruckner, Stefan (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Scatter plots are a powerful and well-established technique for visualizing the relationships between two variables as a collection of discrete points. However, especially when dealing with large and dense data, scatter ...

    • Understanding the Design Space and Authoring Paradigms for Animated Data Graphics 

      Thompson, John R.; Liu, Zhicheng; Li, Wilmot; Stasko, John (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Creating expressive animated data graphics often requires designers to possess highly specialized programming skills. Alternatively, the use of direct manipulation tools is popular among animation designers, but these tools ...

    • v-plots: Designing Hybrid Charts for the Comparative Analysis of Data Distributions 

      Blumenschein, Michael; Debbeler, Luka J.; Lages, Nadine C.; Renner, Britta; Keim, Daniel A.; El-Assady, Mennatallah (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Comparing data distributions is a core focus in descriptive statistics, and part of most data analysis processes across disciplines. In particular, comparing distributions entails numerous tasks, ranging from identifying ...

    • VA-TRAC: Geospatial Trajectory Analysis for Monitoring, Identification, and Verification in Fishing Vessel Operations 

      Storm-Furru, Syver; Bruckner, Stefan (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In order to ensure sustainability, fishing operations are governed by many rules and regulations that restrict the use of certain techniques and equipment, specify the species and size of fish that can be harvested, and ...

    • Visual Analysis of the Finite-Time Lyapunov Exponent 

      Sagristà, Antoni; Jordan, Stefan; Sadlo, Filip (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In this paper, we present an integrated visual analytics approach to support the parametrization and exploration of flow visualization based on the finite-time Lyapunov exponent. Such visualization of time-dependent flow ...

    • A Visual Analytics Approach to Facilitate Crime Hotspot Analysis 

      Neto, José F. de Queiroz; Santos, Emanuele; Vidal, Creto Augusto; Ebert, David S. (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Computer-based technology has played a significant role in crime prevention over the past 30 years, especially with the popularization of spatial databases and crime mapping systems. Police departments frequently use hotspot ...

    • VisuaLint: Sketchy In Situ Annotations of Chart Construction Errors 

      Hopkins, Aspen K.; Correll, Michael; Satyanarayan, Arvind (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Chart construction errors, such as truncated axes or inexpressive visual encodings, can hinder reading a visualization, or worse, imply misleading facts about the underlying data. These errors can be caught by critical ...

    • WarehouseVis: A Visual Analytics Approach to Facilitating Warehouse Location Selection for Business Districts 

      Li, Quan; Liu, Qiangqiang; Tang, Chunfeng; Li, Zhiwei; Wei, Shuaichao; Peng, Xianrui; Zheng, Minghua; Chen, Tianjian; Yang, Qiang (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Selecting a proper warehouse location serving to satisfy the demands of the goods from a certain business area is important to a successful retail business. However, the large solution space, uncertain traffic conditions, ...