Use human perceptual
capabilities
to gain insights into large data sets
that are difficult to extract
using standard query languages
Exploratory Visualization
–Look for structure, patterns, trends, anomalies, relationships
–Provide a qualitative overview
of large, complex data sets
–Assist in identifying region(s) of interest and appropriate parameters for more focussed quantitative analysis
Shneiderman's
Mantra:
–Overview first, zoom and filter, then
details-on-demand
–Overview first, zoom and filter, then
details-on-demand
–Overview first, zoom and filter, then
details-on-demand