Brain.js is a
JavaScript library A JavaScript library is a library of pre-written JavaScript code that allows for easier development of JavaScript-based applications, especially for AJAX and other web-centric technologies.
Libraries
With the expanded demands for JavaScript, an ea ...
used for
neural networking, which is released as
free and open-source software
Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source ...
under the
MIT License
The MIT License is a permissive free software license originating at the Massachusetts Institute of Technology (MIT) in the late 1980s. As a permissive license, it puts only very limited restriction on reuse and has, therefore, high license comp ...
. It can be used in both the browser and Node.js backends.
Brain.js is most commonly used as a simple introduction to neural networking, as it hides complex mathematics and has a familiar modern JavaScript syntax.
It is maintained by members of the Brain.js organization and open-source contributors.
Examples
Creating a
feedforward neural network with
backpropagation
In machine learning, backpropagation (backprop, BP) is a widely used algorithm for training feedforward neural network, feedforward artificial neural networks. Generalizations of backpropagation exist for other artificial neural networks (ANN ...
:
const net = new brain.NeuralNetwork();
net.train( ,
,
,
,
;
console.log(net.run(, 0
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline o ...
);
Creating a
recurrent neural network:
const net = new brain.recurrent.RNN();
net.train( ,
,
,
,
;
let output = net.run(, 0
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline o ...
; // output = net.run(, 1
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline (t ...
; // output = net.run(, 0
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline o ...
; // output = net.run(, 1
The comma is a punctuation mark that appears in several variants in different languages. It has the same shape as an apostrophe or single closing quotation mark () in many typefaces, but it differs from them in being placed on the baseline (t ...
; //
Train the neural network on RGB color contrast:
const net = new brain.NeuralNetwork();
net.train(
,
;
const output = net.run(); //
console.log(output)
External links
*
* {{GitHub, BrainJS/brain.js
References
Artificial neural networks
JavaScript libraries