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Tsinghua Science and Technology

Issue 4 • Date Aug. 2012

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Displaying Results 1 - 14 of 14
  • [Front cover]

    Publication Year: 2012, Page(s): c1
    IEEE is not the copyright holder of this material | PDF file iconPDF (1327 KB)
    Freely Available from IEEE
  • Contents

    Publication Year: 2012, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (30 KB)
    Freely Available from IEEE
  • SPECIAL ISSUE ON VISUALIZATION AND COMPUTER GRAPHICS 
  • Guest editorial: Special issue on visualization and computer graphics

    Publication Year: 2012, Page(s):363 - 364
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (95 KB)

    In the decade of data explosion, a significant challenge is how to transform data into understandings and insights that are useful to people. Visualization, the use of computer-supported, interactive visual representations of data to amplify cognition[1], is an important approach to addressing this challenge. In particular, scientific visualization primarily represents physical or geome... View full abstract»

    Open Access
  • Network visualization in cell biology

    Publication Year: 2012, Page(s):365 - 382
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (13335 KB)

    Many of the processes known to take place in biological cells are analyzed in the form of different types of network. The complexity of these networks increases along with our knowledge of these processes, making their analysis more difficult. Network visualization is a powerful analysis method that will have to be developed further to deal with this complexity. This survey provides a brief overvi... View full abstract»

    Open Access
  • Simple algorithms for network visualization: A tutorial

    Publication Year: 2012, Page(s):383 - 398
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2470 KB)

    The graph drawing and information visualization communities have developed many sophisticated techniques for visualizing network data, often involving complicated algorithms that are difficult for the uninitiated to learn. This article is intended for beginners who are interested in programming their own network visualizations, or for those curious about some of the basic mechanics of graph visual... View full abstract»

    Open Access
  • SideKnot: Edge bundling for uncovering relation patterns in graphs

    Publication Year: 2012, Page(s):399 - 408
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (6933 KB)

    The node-link diagram is an intuitive way to depict a graph and present relationships between entities. Addressing the visual clutter induced by edge crossing and node-edge overlapping is a challenging task as the size of graph outgrows the visualization space. Many edge bundling methods are proposed to disclose high-level edge patterns. Though previous methods can successfully reveal the skeleton... View full abstract»

    Open Access
  • Sequential document visualization based on hierarchical parametric histogram curves

    Publication Year: 2012, Page(s):409 - 418
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2390 KB)

    Recently, sequential document visualization has attracted much attention for its superior capability in depicting the sequential semantic progression in a single document. However, existing methods commonly take abstractive visual forms such as texts, numbers, and glyphs, and require much user expertise for document exploration. In this paper we propose a sequential visualization to represent a si... View full abstract»

    Open Access
  • ClustNails: Visual analysis of subspace clusters

    Publication Year: 2012, Page(s):419 - 428
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (655 KB)

    Subspace clustering addresses an important problem in clustering multi-dimensional data. In sparse multi-dimensional data, many dimensions are irrelevant and obscure the cluster boundaries. Subspace clustering helps by mining the clusters present in only locally relevant subsets of dimensions. However, understanding the result of subspace clustering by analysts is not trivial. In addition to the g... View full abstract»

    Open Access
  • Evaluation of a pointwise local visual pattern exploration method

    Publication Year: 2012, Page(s):429 - 439
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (886 KB)

    Sensitivity analysis is a powerful method for discovering the significant factors that contribute to understanding the interaction between variables in multivariate datasets. A number of sensitivity analysis methods fall into the class of local analysis, in which the sensitivity is defined as the partial derivatives of a target variable with respect to a group of independent variables. In a recent... View full abstract»

    Open Access
  • RiskVA: A visual analytics system for consumer credit risk analysis

    Publication Year: 2012, Page(s):440 - 451
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1329 KB)

    Consumer credit risk analysis plays a significant role in stabilizing a bank's investments and in maximizing its profits. As a large financial institution, Bank of America relies on effective risk analyses to minimize the net credit loss resulting from its credit products (e.g., mortgage and credit card loans). Due to the size and complexity of the data involved in this process, analysts are facin... View full abstract»

    Open Access
  • Feature preserving milli-scaling of large format visualizations

    Publication Year: 2012, Page(s):452 - 462
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2529 KB)

    Ultra-scale data analysis has created many new challenges for visualization. For example, in climate research with two-dimensional time-varying data, scientists find it crucial to study the hidden temporal relationships from a set of large scale images, whose resolutions are much higher than that of general computer monitors. When scientists can only visualize a small portion (< 1/1000) of ... View full abstract»

    Open Access
  • Coherent streamline generation for 2-D vector fields

    Publication Year: 2012, Page(s):463 - 470
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3218 KB)

    Visualizing 2-D vector fields using streamlines is one popular flow visualization technique. Standard streamline generation algorithms compute the density of streamlines across the domain, detect features, and employ customized rules to emphasize features. In this process, feature characterization and visual clarity are heavily considered. Simultaneously preserving the temporal coherence for time-... View full abstract»

    Open Access
  • Stable geodesic surface signatures

    Publication Year: 2012, Page(s):471 - 480
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (5304 KB)

    Shape analysis plays a fundamental role in computer graphics. We present a novel global and intrinsic shape representation for shape analysis, called stable geodesic signature. It is based on the theory of stable closed geodesics and surface Ricci flow. We examine the surface by dynamically deforming it by metric design through Ricci flow, then we observe the behavior of the stable closed geodesic... View full abstract»

    Open Access
  • The closest and farthest points to an affine ellipse or ellipsoid

    Publication Year: 2012, Page(s):481 - 484
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2736 KB)

    Affine ellipses/ellipsoids based bounding volumes are widely used in various graphics applications, such as ray tracing and collision detection. They provide a much tighter fit than the regular ellipses/ellipsoids. The most important operation involved is to compute the closest/farthest point, on a given ellipse/ellipsoid, with respect to a user specified point. In this paper, we first formulate s... View full abstract»

    Open Access

Aims & Scope

Tsinghua Science and Technology (Tsinghua Sci Technol) aims to highlight scientific achievements in computer science, electronic engineering, and other IT fields. Contributions all over the world are welcome.

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Meet Our Editors

Editor-in-Chief
Professor Jiaguang Sun
School of Software
Tsinghua University
Beijing  100084 China
journal@tsinghua.edu.cn
Phone:86-10-62771385