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Cameron Buckner
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Interesting network visualization of the history of philosophy...

Lecture to Munich Center for Mathematical Philosophy on Dynamic Ontology now available on iTunes:  https://cast.itunes.uni-muenchen.de/vod/clips/pmY60Fb5dq/quicktime.mp4 

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A heat map analysis I did of the Democratic and Republican convention speeches using the word2word tool developed by Brent Kievit-Kylar at IU.  He has just added a "heatmap" feature to the software that lets you see the terms most diagnostic in a comparison. The "hotter" terms are the ones most diagnostic of a speech's being from the Democratic convention.  Hottest terms are "aarp, experience, affordable, abuelo, billionaires, afghanistan, beijing, biofuels, aliens".

The stats analysis is the BEAGLE holographic mental lexicon (a vector cosine similarity model that uses n-gram convolution to bind n-gram orderings) developed by Mike Jones.  The layout is MDS based on a "neutral" layout of a composite dataset consisting of all speeches from both conventions.

Another thing that's interesting about this visualization is the "triangular" shape, which holds up under many transformations of the data.  The X-axis seems interpretable as a "liberal->conservative" dimension, with liberal on the left and conservative on the right.  I interpret the triangular shape as evidence of high ideological focus on just a few issues by the Republicans (Obamacare, jobs, country, future, work) and a much more diffuse platform from the Democrats.
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Here's the network analysis of the same graph (see previous post).  Red links reflect high semantic similarity in Republican speeches, Blue links in Democrat.  The triangular shape is clearer here.

One thing I find really fascinating is the Democrats' emphasis on "know" and "knowledge" (lower left-hand corner).  
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