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    Design and Implementation of a System for Interactive Higher Dimensional Vector Field Visualization
    (The Eurographics Association, 2011) Peng, Zhenmin; Geng, Zhao; Laramee, Robert S.; R. Laramee and I. S. Lim
    Although the challenge of 2D flow visualization is deemed virtually solved as a result of the tremendous amount of effort invested into this problem, higher-dimensional flow visualization, (e.g. the visualization of flow on surfaces in 3D (2.5D), volumetric flow (3D), and flow with multiple attributes (nD) ), still holds many challenges which need to be addressed.We describe the design and implementation of a generic framework incorporating a selection of related scientific and information visualization techniques which are interactively integrated to provide tools for effective visualization of the higher dimensional CFD (Computational Fluid Dynamics) simulation data. In contrast to the most research prototypes, the system we present handles real-world, unstructured simulation data. Our framework involves direct, vector field clustering and geometric flow visualization techniques. Information visualization approaches, such as a tabular histogram, velocity histogram, and parallel coordinate plot are also integrated. In order to enable a smooth and efficient user interaction, these visualization options are systematically combined on a multi-threading platform which ensures responsiveness even when processing large data.
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    Visual Analysis of Hierarchical Management Data
    (The Eurographics Association, 2011) Geng, Zhao; Gathania, Gaurav; S.Laramee, Robert; Peng, ZhenMin; R. Laramee and I. S. Lim
    The sales force management data at Thomson Reuters often contains multiple hierarchies and dependencies. Conventional business graphics are not sufficient for analyzing, presenting and exploring such data sets. The Treemap is effective for depicting hierarchical data, although it lacks structural clarity. Thus, distinguishing different levels within the treemap is difficult. In this abstract, we develop an interactive system for business analysts which enables structure-aware visualization of hierarchical data using multiple coordinated views. The design of this system includes hierarchy extraction, structure tracings and the direct manipulation of the treemap. We demonstrate our result on various sales force management data sets from Thomson Reuters.