These vector-based visualizations were created with RAWGraphs.
Alluvial Diagram
This alluvial diagram illustrates correlations between categorical dimensions, showing visual links to the number of elements sharing the same category. The filename for a particular document is shown on the left, the correspondent is on the right, and the machine-extracted feature is in the middle.
Circle Packing
This circle packing diagram illustrate hierarchies and comparable values. This diagram shows the most frequently mentioned machine-extracted features by correspondent.
Diagram Key:
Cluster Dendrogram
This cluster dendrogram illustrates the distribution of a hierarchical clustering of elements. This diagram tree show the main machine-extracted features clustered by correspondent (and filename).
The sample data set used to create these visualizations can be downloaded here.