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Neural Network

Neural Network is a computer program that learns to spot patterns by studying many examples.

Think of it this way

A cookie-sorting tray has rows of small cups. Each cup holds one cookie and passes it to the next row. Cups that get many cookies grow bigger and pass more along. After thousands of cookies, the big cups form a path that spots the best ones fast.

Explaining neural network by grade level

Your brain knows what a 3 looks like. You have seen many of them. A computer can learn the same way. Show it lots of numbers and it tells them apart.

Projects that explore neural network

Neural Networks and Connect 4 Strategy

A neural network is a program that learns through practice — studying many examples until it can spot patterns on its own. In this experiment, you build one and train it to play Connect 4 using a genetic algorithm: the method creates many versions of the program and keeps the ones that perform best. After many rounds against a simulated opponent, the network learns to beat that opponent reliably. When a human player with a different strategy steps in, though, the human still wins. That result reveals something important: the network learned to recognize one style of play rather than the game itself. Training it against several opponents with different strategies could help it play more broadly.

Hard