dannjs

Deep Neural Network Library for Javascript

Train a neural network with your data & save its trained state!

Demo •
Installation •
Documentation •
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Discord •
License

Installation

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``html

`

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`
npm i dannjs
`
dannjs on npmjs.com

Getting started

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Components from the library can be imported like this
`js
const { Dann } = require('dannjs');
`

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Setting up a small (4,6,6,2) neural network.
`js
const nn = new Dann(4, 2);
nn.addHiddenLayer(6, 'leakyReLU');
nn.addHiddenLayer(6, 'leakyReLU');
nn.outputActivation('tanH');
nn.makeWeights();
nn.lr = 0.0001;
nn.log({details:true});
`

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Training with a dataset.
`js
//XOR 2 inputs, 1 output
const dataset = [
{
input: [0, 0],
output: [0]
},
{
input: [1, 0],
output: [1]
},
{
input: [0, 1],
output: [1]
},
{
input: [1, 1],
output: [0]
}
];

//train 1 epoch
for (data of dataset) {
nn.backpropagate(data.input, data.output);
console.log(nn.loss);
}
`

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For neuroevolution simulations. Works best with small models & large population size.
`js
const populationSize = 1000;
let newGeneration = [];

for (let i = 0; i < populationSize; i++) {

// parentNN would be the best nn from past generation.
const childNN = parentNN;
childNN.mutateRandom(0.01, 0.65);

newGeneration.push(childNN);
}
`

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Convert a Neural Network to a JS function that can output predictions without the library.
`js
let strfunc = nn.toFunction();
console.log(strfunc);
`

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`js
let json = nn.toJSON();
console.log(json);
``

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AI predicts San-francisco Housing prices.

more examples & demos here

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https://dannjs.org/sandbox

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Dann-p5

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Get Dannjs stickers!

Contributors

Matias Vazquez-Levi 💻 📖 ⚠️ ✅	Francesco Ciulla 📢	Labnan 🐛 💻 ⚠️	sharkAce 💻	Hasnain Iqbal 💻 ⚠️	EL Ramos 🐛 ⚠️ 💻	viabhinav ✅
and1can 💻 ⚠️

Any contributions are welcome! See CONTRIBUTING.md.

License

MIT