Data Visualisation & Visual Querying

Data Visualisation &

Visual Querying

Florian CamporaHugo Questroy

Andrea DiniAdel Barkallah

Laurent Garambois

Contents

Data Visualisation Need & Concept Type of Information Visual Information seeking mantra

Visual Querying Need & Concept Techniques for Visual Querying

Data Visualisation

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

ESRI ArcExplorer

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

Fisheye view

Objects in the centre of the view are magnified and objects further from the centre are reduced in size

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 Querying

Visual QueryingNeed & Concept

Need Adapted to novice users

Concept WIMP interfaces

Visual QueryingTechniques for visual querying

Form-based visual querying

An example: Enviro

An example for OODB: VOODOO

Diagram Based Visual querying

QBD (Query By Diagram) : SUPER software example.

Icon based data querying : A Radiological Software

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 CamporaHugo Questroy

Andrea DiniAdel Barkallah

Laurent Garambois

Data Visualisation & Visual Querying

Documents

Transcript of Data Visualisation & Visual Querying

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