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What is a neural network?Neural Networks are a different paradigm for computing:
  • von Neumann machines are based on the processing/memory abstraction of human information processing.
  • neural networks are based on the parallel architecture of animal brains.

Neural networks are a form of multiprocessor computer system, with

  • simple processing elements
  • a high degree of interconnection
  • simple scalar messages
  • adaptive interaction between elements

A biological neuron may have as many as 10,000 different inputs, and may send its output (the presence or absence of a short-duration spike) to many other neurons. Neurons are wired up in a 3-dimensional pattern.

Real brains, however, are orders of magnitude more complex than any artificial neural network so far considered.

Where can neural network systems help?

  • where we can't formulate an algorithmic solution.
  • where we can get lots of examples of the behavior we require.
  • where we need to pick out the structure from existing data.

by omiyehan Sunday

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