Being inspired by Marko Rodriguez's papers about grammar-based random walkers in semantic networks (http://www.soe.ucsc.edu/~okram/papers/random-grammar.pdf, and some less math-heavy ones at http://www.soe.ucsc.edu/~okram/Research.html), I thought the idea could be extended into kind of a "real time" control system.

gramnet_simple_links.jpg

You can find more information and a downloadable prototype at http://taivorocks.googlepages.com/gramnet