SYS 478: Fall 2026

Tue, Sep 22

Topic 2. How Computers Work

Inside a Neural Network: Weights, Layers, and Learning

Please complete the tasks and readings listed below before class on Tue, Sep 22.

Required Readings

Reading
Crawford, Kate. “Atlas of AI.” Sydney Ideas, University of Sydney, 2021. Link
Ideally, watch the whole thing. If you're short on time, watch minutes 11-24. Discusses training data, ImageNet, classification, and how human categories shape what AI systems learn to recognize.
Reading
Sanderson, Grant. “But What Is a Neural Network?” 3Blue1Brown, 5 Oct. 2017. Link
Watch approximately the first 8–9 minutes for an intuitive introduction to neurons, layers, and learned features.

Optional Readings

Reading
Google. Teachable Machine [Interactive]. Link
Try object classification; test unfamiliar backgrounds and examples.