FAQ: What is the ThemeView™ visualization?
The ThemeView™ visualization is the fastest way to get an overview of your document collection. It translates the Galaxy into a thematic summary landscape map.
Think of the Galaxy as the sea-level foundation of a ThemeView. For every major term in the dataset, sweep across the entire visualization space. Each document having content related to that theme will add a little height to that layer (how much it adds will depend on the strength of that theme's relevance to that document). If a document is not at all related to that theme, it won't add any height to the layer there. Repeating this layer-building process for all 200 or so major topics in the dataset, stacking the layers on top of each other and smoothing the results, creates the thematic summary view, the ThemeView.