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> we can't construct computer models to predict the properties [...] from knowledge of the underlying laws Hmm, or can we? This gave me the idea of trying to e
by worldsayshi 9y ago
> we can't construct computer models to predict the properties [...] from knowledge of the underlying laws
Hmm, or can we? This gave me the idea of trying to extract "emergent laws" using machine learning.
There should be a way to build an AI that tries to find rules that approximate behaviour of complex systems. I'm sure there's lots of work on this already.
- pdonis 9y ago*> This gave me the idea of trying to extract "emergent laws" using machine learning. This is not what I was talking about. I was talking about a case where we know the underlying laws (the electromagnetic and strong interactions), but the computer models that we would construct from those laws would take more time than the age of the universe to run on our current computers and give us useful output. Using computers to try and infer underlying laws, not currently known to us, from data is a different thing, and I believe there is indeed ongoing work in this area.
- worldsayshi 9y agoBut my point being that if we can construct approximations on top of underlying laws that are cheaper to run, then the outcomes of any complex model could be approximated.