# Dendra: Watch it learn

> A multilayer perceptron with backpropagation (tanh/ReLU, Xavier/He init, full-batch gradient descent), training live on XOR and concentric circles. 11 tests, centred on a finite-difference gradient check.

Dendra is a multilayer perceptron built from scratch, training live in the browser on XOR and concentric circles so you can watch the decision boundary form. It implements backpropagation with tanh/ReLU activations, Xavier/He initialization and full-batch gradient descent, and its 11 tests centre on a finite-difference gradient check. Dependency-light, free to download and run.

## About the app

Machine learning

## What to take away

- A multilayer perceptron with backpropagation (tanh/ReLU, Xavier/He init, full-batch gradient descent), training live on XOR and concentric circles. 11 tests, centred on a finite-difference gradient check.
- Download: Dendra (ZIP)

## Tags

Free software, Dendra

## Read the full write-up

/downloads/dendra.zip

## We build this for clients

https://dfieldsolutions.com/en/services/full-stack

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- https://dfieldsolutions.com/en/lab/kindra.md — Kindra: Miss a beat, not the rhythm
- https://dfieldsolutions.com/en/lab/voxara.md — Voxara: Argue better. Lose gracefully
- https://dfieldsolutions.com/en/lab/wraithward.md — Wraithward: Spot the bait before you bite

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Source: https://dfieldsolutions.com/en/lab/dendra
DField Solutions — Torony köz 5-1.a, 2120 Dunakeszi, Hungary — +36 20 722 0002 — dezso@dfieldsolutions.com
Booking: see https://dfieldsolutions.com/en/contact