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Data Visualisation & Visual Querying. Florian Campora Hugo Questroy Andrea Dini Adel Barkallah Laurent Garambois. Contents. Data Visualisation Need & Concept Type of Information Visual Information seeking mantra Visual Querying Need & Concept Techniques for Visual Querying.
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Data Visualisation & Visual Querying Florian Campora Hugo Questroy Andrea Dini Adel Barkallah Laurent Garambois
Contents • Data Visualisation • Need & Concept • Type of Information • Visual Information seeking mantra • Visual Querying • Need & Concept • Techniques for Visual Querying
Data VisualisationNeed & Concept • Need • Data versus Information • Novice users • Concept • No standard method • Understand the type of information
Type of Information1-Dimensional • Inxight Table Lens
Type of Information2-Dimensional • ESRI ArcExplorer
Type of Information3-Dimensional • WebForager & WebBook
Type of InformationTemporal • LifeLines developed by University of Maryland
Type of InformationMulti-Dimensional • LifeLines developed by University of Maryland
Type of InformationTree • Inxight Star Tree Viewer
Type of InformationNetwork • NSFNET11 Traffic
Visual Information seeking Mantra “Overview first, zoom and filter, and then details-on-demand” Ben Schneiderman, July 96
Visual Information seeking MantraFocus & Context • Definition • Example: The Fisheye approach
Visual Information seeking MantraFocus & Context • Fisheye view Objects in the centre of the view are magnified and objects further from the centre are reduced in size
Visual Information seeking MantraFocus & Context • Advantage • The user can control the distortion problem • Disadvantage • Always keep all the information on the screen, which gets cluttered. • The view of a graph is changing according to the user perspective.
Visual Information seeking MantraZooming & Filtering • Definition • Dynamic queries example: A Geographic application
Visual Information seeking MantraDetails-on-demand • Definition • Spotfire
Visual QueryingNeed & Concept • Need • Adapted to novice users • Concept • WIMP interfaces
Visual QueryingTechniques for visual querying • Form-based visual querying
Visual QueryingTechniques for visual querying • An example: Enviro
Visual QueryingTechniques for visual querying • An example for OODB: VOODOO
Visual QueryingTechniques for visual querying • An example for OODB: VOODOO
Visual QueryingTechniques for visual querying • Diagram Based Visual querying
Visual QueryingTechniques for visual querying • QBD (Query By Diagram) : SUPER software example.
Visual QueryingTechniques for visual querying • Icon based data querying : A Radiological Software
Visual QueryingTechniques for visual querying • QBI (Query By Icon) : Marmotta software example
Visual QueryingTechniques for visual querying • Hybrid based data querying : Hybrid approach in A Semantic Knowledgeable Interface (S.K.I.)
Data Visualisation & Visual Querying Florian Campora Hugo Questroy Andrea Dini Adel Barkallah Laurent Garambois