JavaScript implementation of Predictive Sequence Learning.
A simple Hello world instanciation of psl.js is available here.
You may also check out the more elaborated example where psl.js is used to predict your actions in a little maze game.
psl.js can be used in the browser or standalone, using node.js.
Download psl.js from GitHub or linke directly to the CDN:
<script src="https://cdn.rawgit.com/billingo/psl.js/b7b7ab72/psl.js"></script>
Now, Psl can be instanciated, trained, and executed like this:
$(function() {
var psl = new Psl(); // Instantiate the Psl library
var s = 'PSL Hello World Hello World';
psl.train({s:s});
function run() {
$('H1').append(psl.predict($('H1').text()));
setTimeout(run,200);
};
setTimeout(run,200);
});
Please note that this example depends on jQuery. psl.js itself is however independent of external libraries. Like psl.js, jQuery can be linked directly from the CDN.
First, make sure you have node.js installed. psl.js is available in the Node Package Manager (npm). Assuming that you have npm installed, simply do:
npm install psl.js
Alternatively, you may also download psl.js from GitHub and link manually.
Now, you make create a simple little Hello World like this:
var Psl = require('psl.js').Psl; // Require the Psl class from psl.js
var psl = new Psl(); // Instantiate Psl
var s = 'PSL Hello World Hello World'; // Define a source string
var h = 'P'; // Initiate the history
process.stdout.write(h); // Write history to console
psl.train(s); // Run training
function run() {
var c = psl.predict(h); // Predict the next character in the sequence
process.stdout.write(c); // Print predicted character to console
h += c; // Append history
setTimeout(run,200); // Callback
};
setTimeout(run,200); // Initiate callback
Have fun! @billingo