GitHub - Paul-G2/letter-spirit-2-js: A JavaScript implementation of Letter Spirit 2 · GitHub

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Paul-G2

letter-spirit-2-js

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letter-spirit-2-js

This is a JavaScript implementation of Letter Spirit 2,<br>a computer model of human high-level perception and creativity, in the realm of letter-design. The model was invented by<br>John Rehling,<br>Gary McGraw, and<br>Douglas Hofstadter.

You can try it out here.

Letter Spirit 2 is described in John Rehling's Ph.D. thesis.,<br>and in the book Fluid Concepts and Creative Analogies.

I got interested in Letter Spirit, and the Hofstadter group's other projects, after reading the Fluid Concepts and Creative Analogies book,<br>but I couldn't find demos that were easy to get up and running. Hence this repo, and my related repos for Copycat<br>and Letter Spirit Examiner.

My implementation is based entirely on Rehling's original Scheme code.<br>The look of the UI is based on screenshots contained in McGraw's thesis, and on James Marshall's Metacat.

A caveat: It's hard to be sure that I've ported the Scheme code correctly (not least because the algorithm is stochastic).<br>My implementation generates sensible-looking results, and I wrote a lot of unit tests for its various parts, but of course it's possible I may have got some things wrong. If you spot any problems, please submit an issue!

Here are some sample outputs produced by the app (with random seed = 123):

About<br>A JavaScript implementation of Letter Spirit 2<br>paul-g2.github.io/letter-spirit-2-js/index.html?seed=123<br>Topics<br>aiartificial-intelligencecognitive-sciencehofstadter<br>Resources<br>Readme<br>MIT license<br>Activity<br>Stars<br>2 stars<br>Watchers<br>1 watching<br>Forks<br>1 fork<br>Report repository

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