ModelRefs / Building Your First Network — Tutorial

Building Your First Network — Tutorial

Create a simple neural network from scratch. Covers Network Architecture, Forward Propagation.

Overview

Create a simple neural network from scratch

Level: Advanced. Estimated reading time: 60 minutes.

Network Architecture

We'll build a simple network for binary classification: • Input layer: 2 features • Hidden layer: 3 neurons with ReLU • Output layer: 1 neuron with Sigmoid

This is called a "feedforward" network because information flows forward from input to output.

Forward Propagation

Forward propagation is the process of passing inputs through the network: 1. Input data enters the network 2. Each layer computes weighted sums and applies activations 3. Output layer produces the final prediction

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