By Topic

Visualization Symposium (PacificVis), 2012 IEEE Pacific

Date Feb. 28 2012-March 2 2012

Filter Results

Displaying Results 1 - 25 of 43
  • [Title page]

    Publication Year: 2012, Page(s): i
    Request permission for commercial reuse | PDF file iconPDF (114 KB)
    Freely Available from IEEE
  • [Copyright notice]

    Publication Year: 2012, Page(s): ii
    Request permission for commercial reuse | PDF file iconPDF (23 KB)
    Freely Available from IEEE
  • Contents

    Publication Year: 2012, Page(s):iii - v
    Request permission for commercial reuse | PDF file iconPDF (706 KB)
    Freely Available from IEEE
  • Supporting organizations

    Publication Year: 2012, Page(s): v
    Request permission for commercial reuse | PDF file iconPDF (673 KB)
    Freely Available from IEEE
  • A message from the program chairs

    Publication Year: 2012, Page(s): vi
    Request permission for commercial reuse | PDF file iconPDF (31 KB) | HTML iconHTML
    Freely Available from IEEE
  • IEEE Visualization and Graphics Technical Committee (VGTC)

    Publication Year: 2012, Page(s): vii
    Request permission for commercial reuse | PDF file iconPDF (74 KB)
    Freely Available from IEEE
  • Organizing Committee

    Publication Year: 2012, Page(s): viii
    Request permission for commercial reuse | PDF file iconPDF (86 KB)
    Freely Available from IEEE
  • Reviewers

    Publication Year: 2012, Page(s): ix
    Request permission for commercial reuse | PDF file iconPDF (46 KB)
    Freely Available from IEEE
  • Challenges for information visualization research: Visual quality and data quantity

    Publication Year: 2012, Page(s): x
    Request permission for commercial reuse | PDF file iconPDF (132 KB)
    Freely Available from IEEE
  • Quantitative visualization in the computational biological sciences

    Publication Year: 2012, Page(s): xi
    Request permission for commercial reuse | PDF file iconPDF (71 KB)
    Freely Available from IEEE
  • [Blank page]

    Publication Year: 2012, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (7 KB)
    Freely Available from IEEE
  • Exploring the design space of composite visualization

    Publication Year: 2012, Page(s):1 - 8
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2272 KB) | HTML iconHTML

    We propose the notion of composite visualization views (CVVs) as a theoretical model that unifies the existing coordinated multiple views (CMV) paradigm with other strategies for combining visual representations in the same geometrical space. We identify five such strategies - called CVV design patterns - based on an extensive review of the literature in composite visualization. We go on to show h... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Topological analysis and visualization of cyclical behavior in memory reference traces

    Publication Year: 2012, Page(s):9 - 16
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4324 KB) | HTML iconHTML

    We demonstrate the application of topological analysis techniques to the rather unexpected domain of software visualization. We collect a memory reference trace from a running program, recasting the linear flow of trace records as a high-dimensional point cloud in a metric space. We use topological persistence to automatically detect significant circular structures in the point cloud, which repres... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A network-based interface for the exploration of high-dimensional data spaces

    Publication Year: 2012, Page(s):17 - 24
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3597 KB) | HTML iconHTML

    The navigation of high-dimensional data spaces remains challenging, making multivariate data exploration difficult. To be effective and appealing for mainstream application, navigation should use paradigms and metaphors that users are already familiar with. One such intuitive navigation paradigm is interactive route planning on a connected network. We have employed such an interface and have paire... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Progressive parallel coordinates

    Publication Year: 2012, Page(s):25 - 32
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1853 KB) | HTML iconHTML

    Progressive refinement is a methodology that makes it possible to elegantly integrate scalable data compression, access, and presentation into one approach. Specifically, this paper concerns the effective use of progressive parallel coordinates (PPCs), utilized routinely for high-dimensional data visualization. It discusses how the power of the typical stages of progressive data visualization can ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Embedding, clustering and coloring for dynamic maps

    Publication Year: 2012, Page(s):33 - 40
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4493 KB) | HTML iconHTML

    We describe a practical approach for visualizing multiple relationships defined on the same dataset using a geographic map metaphor, where clusters of nodes form countries and neighboring countries correspond to nearby clusters. Our aim is to provide a visualization that allows us to compare two or more such maps (showing an evolving dynamic process, or obtained using different relationships). In ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spatiotemporal anomaly detection through visual analysis of geolocated Twitter messages

    Publication Year: 2012, Page(s):41 - 48
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1445 KB) | HTML iconHTML

    Analyzing message streams from social blogging services such as Twitter is a challenging task because of the vast number of documents that are produced daily. At the same time, the availability of geolocated, realtime, and manually created status updates are an invaluable data source for situational awareness scenarios. In this work we present an approach that allows for an interactive analysis of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analyzing the evolution of large scale structures in the universe with velocity based methods

    Publication Year: 2012, Page(s):49 - 56
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1789 KB) | HTML iconHTML

    The formation of cosmic structure results from the action of gravity on matter in an expanding Universe. As the evolution proceeds, the velocity field changes from being single-valued almost everywhere in space to being multi-valued over a complex web of `multistreaming' regions associated with the formation of large-scale structure (LSS) such as halos (or clumps), filaments, and sheets. Until rec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis and visualization of temporal changes in bloggers' activities and interests

    Publication Year: 2012, Page(s):57 - 64
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1044 KB) | HTML iconHTML

    Social media such as blogs and microblogs enable users to easily and rapidly publish information on their personal activities and interests. They are considered to provide valuable information from the viewpoints of sociology, linguistics, and marketing. This paper proposes a novel system for analyzing temporal changes in the activities and interests of bloggers through a 3D visualization of phras... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • SideKnot: Revealing relation patterns for graph visualization

    Publication Year: 2012, Page(s):65 - 72
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5798 KB) | HTML iconHTML

    Graph is an intuitive and powerful tool to present relationships between entities. Efficiently visualizing graphs with node-link diagrams is a great challenge due to visual clutter induced by edge crossing and node-edge overlapping. Many edge bundling methods are proposed to disclose high-level edge patterns. Though previous methods can successfully reveal the coarse graph structure, the relation ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A maxent-stress model for graph layout

    Publication Year: 2012, Page(s):73 - 80
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24364 KB) | HTML iconHTML

    In some applications of graph visualization, input edges have associated target lengths. Dealing with these lengths is a challenge, especially for large graphs. Stress models are often employed in this situation. However, the traditional full stress model is not scalable due to its reliance on an initial all-pairs shortest path calculation. A number of fast approximation algorithms have been propo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Numerical optimization-based graph drawing revisited

    Publication Year: 2012, Page(s):81 - 88
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1734 KB) | HTML iconHTML

    We present a numerical optimization-based method for visualizing undirected graphs. Our method is a variant of force-directed graph drawing, and has sufficient generality to adopt different basic force models including those for the Kamada-Kawai and Fruchterman-Reingold methods. To achieve efficiency, we use the L-BFGS method for numerical optimization. Our experimental results show that the metho... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The mental map and memorability in dynamic graphs

    Publication Year: 2012, Page(s):89 - 96
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (772 KB) | HTML iconHTML

    In dynamic graph drawing, preserving the mental map, or ensuring that the location of nodes do not change significantly as the information evolves over time is considered an important property by algorithm designers. Many prior experiments have attempted to verify this principle, with surprisingly little success. These experiments have used several different algorithmic methods, a variety of graph... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effects of illumination, texture, and motion on task performance in 3D tensor-field streamtube visualizations

    Publication Year: 2012, Page(s):97 - 104
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2129 KB) | HTML iconHTML

    We present results from a user study of task performance on streamtube visualizations, such as those used in three-dimensional (3D) vector and tensor field visualizations. This study used a tensor field sampled from a full-brain diffusion tensor magnetic resonance imaging (DTI) dataset. The independent variables include illumination model (global illumination and OpenGL-style local illumination), ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visual 4D MRI blood flow analysis with line predicates

    Publication Year: 2012, Page(s):105 - 112
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (20868 KB) | HTML iconHTML

    4D MRI is an in vivo flow imaging modality which has the potential to significantly enhance diagnostics and therapy of cardiovascular diseases. However, current analysis methods demand too much time and expert knowledge in order to apply 4D MRI in the clinics or larger clinical studies. One missing piece are methods allowing to gain a quick overview of the flow data's main properties. We present a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.