A neural network is a computer system that mimics the way the human brain works. A natural neural network in the human brain is made up of layers of neurons. An artificial one is made up of layered nodes consisting of instructions, called algorithms, that guide the computer on how to recognize patterns in data. Such systems learn to perform tasks by evaluating examples instead of receiving specific instructions from programmers.

Neural networks are used today to solve many problems in business and industry. For instance, they are essential in teaching computers how to identify faces, drive cars, forecast demand, and much more.

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