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Information Visualization, 2002. INFOVIS 2002. IEEE Symposium on

Date 28-29 Oct. 2002

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Displaying Results 1 - 25 of 27
  • IEEE Symposium on Information Visualization 2002. INFOVIS 2002. Proceedings

    Publication Year: 2002
    Request permission for commercial reuse | PDF file iconPDF (262 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 2002, Page(s): 173
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    Freely Available from IEEE
  • Interactive information visualization of a million items

    Publication Year: 2002, Page(s):117 - 124
    Cited by:  Papers (47)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (798 KB) | HTML iconHTML

    Existing information visualization techniques are usually limited to the display of a few thousand items. This article describes new interactive techniques capable of handling a million items (effectively visible and manageable on screen). We evaluate the use of hardware-based techniques available with newer graphics cards, as well as new animation techniques and non-standard graphical features su... View full abstract»

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  • Angular brushing of extended parallel coordinates

    Publication Year: 2002, Page(s):127 - 130
    Cited by:  Papers (48)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (642 KB) | HTML iconHTML

    In this paper we present angular brushing for parallel coordinates (PC) as a new approach to highlighting rational data-properties, i.e., features which - in a non-separable way - depend on two data dimensions. We also demonstrate smooth brushing as an intuitive tool for specifying nonbinary degree-of-interest functions (for focus+context visualization). We also briefly describe our implementation... View full abstract»

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  • ACE: a fast multiscale eigenvectors computation for drawing huge graphs

    Publication Year: 2002, Page(s):137 - 144
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1062 KB) | HTML iconHTML

    We present an extremely fast graph drawing algorithm for very large graphs, which we term ACE (for Algebraic multigrid Computation of Eigenvectors). ACE exhibits an improvement of something like two orders of magnitude over the fastest algorithms we are aware of; it draws graphs of millions of nodes in less than a minute. ACE finds an optimal drawing by minimizing a quadratic energy function. The ... View full abstract»

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  • Building a visual database for example-based graphics generation

    Publication Year: 2002, Page(s):23 - 30
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (533 KB) | HTML iconHTML

    Example-based graphics generation systems automatically create new information visualizations by learning from existing graphic examples. As part of the effort on developing a general-purpose example-based generation system, we are building a visual database of graphic examples. In this paper, we address two main issues involved in constructing such a database: example selection and example modeli... View full abstract»

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  • Demystifying venture capital investing

    Publication Year: 2002, Page(s):161 - 164
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (427 KB) | HTML iconHTML

    Since the crash of the dot.coms, investors have gotten a lot more careful with where they place their money. Now more than ever it becomes really important for venture capitalists (VCs) to monitor the state of the startups market and continually update their investment strategy to suit the rapidly changing market conditions. This paper presents three new visualization metaphors (Spiral Map, TimeTi... View full abstract»

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  • Multiscale visualization using data cubes

    Publication Year: 2002, Page(s):7 - 14
    Cited by:  Papers (9)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1711 KB) | HTML iconHTML

    Most analysts start with an overview of the data before gradually refining their view to be more focused and detailed. Multiscale pan-and-zoom systems are effective because they directly support this approach. However generating abstract overviews of large data sets is difficult, and most systems take advantage of only one type of abstraction: visual abstraction. Furthermore, these existing system... View full abstract»

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  • Visual unrolling of network evolution and the analysis of dynamic discourse

    Publication Year: 2002, Page(s):145 - 151
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1289 KB) | HTML iconHTML

    A new method for visualizing the class of incrementally evolving networks is presented. In addition to the intermediate states of the network it conveys the nature of the change between them by unrolling the dynamics of the network. Each modification is shown in a separate layer of a three-dimensional representation, where the stack of layers corresponds to a time line of the evolution. We focus o... View full abstract»

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  • The illusion of perceived metric 3D structure

    Publication Year: 2002, Page(s):51 - 56
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (277 KB) | HTML iconHTML

    A large body of results on the characteristics of human spatial vision suggests that space perception is distorted. Recent studies indicate that the geometry of visual space is best understood as Affine. If this is the case, it has far reaching implications on how 3D visualizations can be successfully employed. For instance, all attempts to build visualization systems where users are expected to d... View full abstract»

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  • Beamtrees: compact visualization of large hierarchies

    Publication Year: 2002, Page(s):93 - 100
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB) | HTML iconHTML

    Beamtrees are a new method for the visualization of large hierarchical data sets. Nodes are shown as stacked circular beams, such that both the hierarchical structure as well as the size of nodes are depicted. The dimensions of beams are calculated using a variation of the treemap algorithm. A small user study indicated that beamtrees are significantly more effective than nested treemaps and cushi... View full abstract»

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  • Process visualization with levels of detail

    Publication Year: 2002, Page(s):67 - 70
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (521 KB) | HTML iconHTML

    We demonstrate how we apply information visualization techniques to process monitoring. Virtual instruments are enhanced using history encoding instruments are capable of displaying the current value and the value from the near past. Multi-instruments are capable of displaying several data sources simultaneously. Levels of detail for virtual instruments are introduced where the screen area is inve... View full abstract»

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  • Multiple foci drill-down through tuple and attribute aggregation polyarchies in tabular data

    Publication Year: 2002, Page(s):131 - 134
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (373 KB) | HTML iconHTML

    Information analysis often involves decomposing data into sub-groups to allow for comparison and identification of relationships. Breakdown Visualization provides a mechanism to support this analysis through user guided drill-down of polyarchical metadata. This metadata describes multiple hierarchical structures for organizing tuple aggregations and table attributes. This structure is seen in fina... View full abstract»

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  • Internet traffic: visualization, discovery, and very large displays

    Publication Year: 2002, Page(s):3 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    For a decade, the ruling common wisdom for Internet traffic held that it was everywhere bursty: over periods lasting tens of milliseconds to hundreds, the traffic was either much below its average rate or much above. In other words, the traffic was not smooth, not staying at all times close to its average. It was bursty on the cable running down a street, carrying the merged traffic of a small num... View full abstract»

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  • Visualizing data with bounded uncertainty

    Publication Year: 2002, Page(s):37 - 40
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (249 KB) | HTML iconHTML

    Visualization is a powerful way to facilitate data analysis, but it is crucial that visualization systems explicitly convey the presence, nature, and degree of uncertainty to users. Otherwise, there is a danger that data will be falsely interpreted, potentially leading to inaccurate conclusions. A common method for denoting uncertainty is to use error bars or similar techniques designed to convey ... View full abstract»

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  • Graphical encoding for information visualization: an empirical study

    Publication Year: 2002, Page(s):43 - 50
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    Research in several areas provides scientific guidance for use of graphical encoding to convey information in an information visualization display. By graphical encoding we mean the use of visual display elements such as icon color, shape, size, or position to convey information about objects represented by the icons. Literature offers inconclusive and often conflicting viewpoints, including the s... View full abstract»

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  • Arc diagrams: visualizing structure in strings

    Publication Year: 2002, Page(s):110 - 116
    Cited by:  Papers (40)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (502 KB) | HTML iconHTML

    This paper introduces a new visualization method, the arc diagram, which is capable of representing complex patterns of repetition in string data. Arc diagrams improve over previous methods such as dotplots because they scale efficiently for strings that contain many instances of the same subsequence. This paper describes design and implementation issues related to arc diagrams and shows how they ... View full abstract»

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  • Efficient cartogram generation: a comparison

    Publication Year: 2002, Page(s):33 - 36
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (675 KB) | HTML iconHTML

    Cartograms are a well-known technique for showing geography-related statistical information, such as population demographics and epidemiological data. The basic idea is to distort a map by resizing its regions according to a statistical parameter, but in a way that keeps the map recognizable. We deal with the problem of making continuous cartograms that strictly retain the topology of the input me... View full abstract»

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  • Visual path analysis

    Publication Year: 2002, Page(s):165 - 168
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (445 KB) | HTML iconHTML

    We describe a system for analyzing the flow of traffic through Web sites. We decomposed the general path analysis problem into a set of distinct subproblems, and created a visual metaphor for analyzing each of them. Our system works off of multiple representations of the clickstream, and exposes the path extraction algorithms and data to the visual metaphors as Web services. We have combined the v... View full abstract»

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  • Visualization schemas for flexible information visualization

    Publication Year: 2002, Page(s):15 - 22
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB) | HTML iconHTML

    Relational databases provide significant flexibility to organize, store, and manipulate an infinite variety of complex data collections. This flexibility is enabled by the concept of relational data schemas, which allow data owners to easily design custom databases according to their unique needs. However, user interfaces and information visualizations for accessing and utilizing databases have no... View full abstract»

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  • A hybrid layout algorithm for sub-quadratic multidimensional scaling

    Publication Year: 2002, Page(s):152 - 158
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Many clustering and layout techniques have been used for structuring and visualising complex data. This paper is inspired by a number of such contemporary techniques and presents a novel hybrid approach based upon stochastic sampling, interpolation and spring models. We use Chalmers' 1996 O(N2) spring model as a benchmark when evaluating our technique, comparing layout quality and run t... View full abstract»

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  • Display design for the eye and mind

    Publication Year: 2002, Page(s): 171
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (253 KB)

    First Page of the Article
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  • SpaceTree: supporting exploration in large node link tree, design evolution and empirical evaluation

    Publication Year: 2002, Page(s):57 - 64
    Cited by:  Papers (49)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5884 KB) | HTML iconHTML

    We present a novel tree browser that builds on the conventional node link tree diagrams. It adds dynamic rescaling of branches of the tree to best fit the available screen space, optimized camera movement, and the use of preview icons summarizing the topology of the branches that cannot be expanded. In addition, it includes integrated search and filter functions. This paper reflects on the evoluti... View full abstract»

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  • A space-optimized tree visualization

    Publication Year: 2002, Page(s):85 - 92
    Cited by:  Papers (4)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1279 KB) | HTML iconHTML

    We describe a new method for the visualization of tree structured relational data. It can be used especially for the display of very large hierarchies in a 2-dimensional space. We discuss the advantages and limitations of current techniques of tree visualization. Our strategy is to optimize the drawing of trees in a geometrical plane and maximize the utilization of display space by allowing more n... View full abstract»

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  • Visualizing biosequence data using texture mapping

    Publication Year: 2002, Page(s):103 - 109
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (490 KB) | HTML iconHTML

    Data-mining of information by the process of pattern discovery in protein sequences has been predominantly algorithm based. We discuss a visualization approach, which uses texture mapping and blending techniques to perform visual data-mining on text data obtained from discovering patterns in protein sequences. This visual approach, investigates the possibilities of representing text data in three ... View full abstract»

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