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3:07Neural Networks Demystified [Part 1: Data and Architecture]
838K views • 12 years ago
Welch Labs
The first of a short series by Welch Labs on building a complete neural network in Python. It introduces the data and the architecture of a simple network before later parts cover forward propagation, gradient descent, and backpropagation.
3:20Professional SMT Soldering: Hand Soldering Techniques - Surface Mount
4.3M views • 16 years ago
John Gammell
A three-minute demonstration of professional hand-soldering techniques for multi-lead surface mount parts, to IPC class 3 criteria.