Dendogram of 300-topic model of 2007-2009 LA Times & Washington Post

This clustering was created as follows:

1. Upload the Mallet topic_counts.txt file for the model to Lexos
2. Select the file in the Lexos "Manage" panel
3. Use the Lexos "multigraph" (in the Visualize panel) to create "topic documents"
4. Use the Lexos hierarchical clustering (in the Analyze panel) to create a dendogram
5. Export the graph data in Newick format
6. Use the Dendoscope standalone program to open the Newick file, generate the dendogram, and tweak it.
7. Use the Summer online image-map generator to create hot-spot links in the image to jump to particular topics.

Dendogram below. Click on topic labels to go to dfr-browser view of the topic. (Note: Because Mallet files number topics beginning with "0," while dfr-browser begins numbering topics at "1," the topic labels in this dendogram are offset by -1 from the dff-browser topic. For example: clicking on topic 254 below will jump to the dfr-browser view of topic 255.)