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https://github.com/retraigo/la-classy

Machine Learning Module for Single Layer Perceptron ML models, written in Rust for Typescript.
https://github.com/retraigo/la-classy

classification deno machine-learning regression rust typescript

Last synced: 29 days ago
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Machine Learning Module for Single Layer Perceptron ML models, written in Rust for Typescript.

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README

        

La Lala

La Classy

Single Layer Perceptron (SLP) library for Deno.

This library is written TypeScript and Rust and it uses FFI.

## Why Classy?

- It's fast.
- It gives you some freedom to experiment with different combinations of loss functions, activation functions, etc.
- It's easy to use.

## Features

- Optimization Algorithms:
- Gradient Descent
- Stochastic Average Gradients
- Ordinary Least Squares
- Optimizers for updating weights:
- RMSProp
- ADAM
- Schedulers for learning rate:
- One-cycle Scheduler
- Decay
- Regularization
- Activation Functions:
- Linear (regression, SVM, etc.)
- Sigmoid (logistic regression)
- Softmax (multinomial logistic regression)
- Tanh (it's just there)
- Loss Functions:
- Mean Squared Error (regression)
- Mean Absolute Error (regression)
- Cross-Entropy (multinomial classification)
- Binary Cross-Entropy / Logistic Loss (binary classification)
- Hinge Loss (binary classification, SVM)

## Quick Example

### Regression

```ts
import { Matrix } from "jsr:@lala/[email protected]";
import {
GradientDescentSolver,
adamOptimizer,
huber,
} from "jsr:@lala/[email protected]";

const x = [100, 23, 53, 56, 12, 98, 75];
const y = x.map((a) => [a * 6 + 13, a * 4 + 2]);

const solver = new GradientDescentSolver({
// Huber loss is a mix of MSE and MAE
loss: huber(),
// ADAM optimizer with 1 + 1 input for intercept, 2 outputs.
optimizer: adamOptimizer(2, 2),
});

// Train for 700 epochs in 2 minibatches
solver.train(
new Matrix(
x.map((n) => [n]),
"f32"
),
new Matrix(y, "f32"),
{ silent: false, fit_intercept: true, epochs: 700, n_batches: 2 }
);

const res = solver.predict(
new Matrix(
x.map((n) => [n]),
"f32"
)
);

for (let i = 0; i < res.nRows; i += 1) {
console.log(Array.from(res.row(i)), y[i]);
}
```

There are other examples in [retraigo/deno-ml](https://github.com/retraigo/deno-ml).

## Documentation

[JSR](https://jsr.io/@lala/classy)

## Maintainers

Pranev ([retraigo](https://github.com/retraigo))

Discord: [Kuro's ~~Chaos Abyss~~ Graveyard](https://discord.gg/A69vvdK)