Using Color Component Overlays for Result Visualization in a Classification by Sketch System

Geographic Information Systems (GIS) are notoriously difficult for users unfamiliar with the field, both for query formulation and for interpretation of display and results. Gaia is a graphical classification system which reduces this difficulty by using a sketch-like classification-by-example input interface, a fuzzy match of the classification against the GIS database, and the use of hue and saturation overlays to present results. This work presents Gaia’s interface and result visualization mechanism.

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