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Do You Think Neural Networks Are Useful for Game AI?

Alex J. Champandard
November 13, 2007

The applicability of computational intelligence and neural networks (NN) in games is a touchy subject here at AiGameDev.com, and in game developer forums generally. This is particularly interesting because everyone seems to be approaching the issue from a different direction:

  1. Most developers starting out in game AI seem to gravitate towards neural networks by default. (I’m guilty of that myself!)

  2. Developers with a certain level of experience in NNs tend to find classical game AI techniques more useful for typical problems.

  3. With a solid background in machine learning, NNs become a very powerful tool when the application is right.

Rather than tiptoeing around the issue, this week’s developer discussion dives right in! (Remember you can win an AiGameDev.com T-Shirt this month by writing interesting comments…)

Neural networks have found a useful role in industry via data-mining, but games applications seem to be lagging.

  • Is the lack of NN applications in games a sign that there are no suitable problems?

  • Do game developers and designers lack the necessary skillset to apply NN?

  • Are NN missing some key technology that would allow more widespread adoption?

You’re welcome to discuss neural network technology in general, but keep in mind that single- and multi-layer perceptrons trained using back-propagation have had the most practical success in games to date.

Join the discussion by posting a comment below!


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