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Don't most really complex physical calculations / simulations (e.g. weather, planetary movements etc.) involve chaotic interactions? So an NN being 99% correct
by tomp 7y ago
Don't most really complex physical calculations / simulations (e.g. weather, planetary movements etc.) involve chaotic interactions? So an NN being 99% correct will still result in "catastrophic" differences down the line?
- whatshisface 7y agoSo will quantization error when you grid your conventional sim. If you can make your cells and timesteps smaller with the NN than without, the loss in accuracy in one place could be compensated by the gain elsewhere. The only issue is, good luck with developing a formal theory of error propagation through your trained network that is faster to compute than the conventional sim itself. Sometimes you care about strict formal guarantees about sim error and other times you don't.