probabilistic-js

Turning Javascript into a probabilistic programming language, following the approach presented in this paper and this talk.

probabilistic-js works via source code transformation: you write probabilistic code in .pjs files which are transformed into plain-old deterministic Javascript in .js files before being executed. For example:

node bin/p.js [-p] ./probcode.pjs

The -p option, if present, will keep around the transformed .js code, which can be useful for debugging in some cases. Take a look at test.pjs for some simple examples.

Programs written in probabilistic-js can also be run in the browser via browserify. The webppl directory contains the framework for a simple example (using the excellent CodeMirror widget). Just use the command:

browserify -r ./probabilistic/index -r ./probabilistic/transform -r ./probabilistic/util > webppl/probabilistic.js

Or if you don't have browserify set up with a command alias, call it with node node_modules/browserify/bin/cmd.js

A running instance of this web demo can be found here.