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Because the neural network described there is just an abstraction that has mathematical and (with some modification) practical utility. Real neurons do not beha
by arjie 12y ago
Because the neural network described there is just an abstraction that has mathematical and (with some modification) practical utility. Real neurons do not behave in the way the model behaves. Synapses have plasticity, not just neurons. I'm not sure if synaptic efficacy (i.e. how much pre-synaptic input influences output) is fully understood even now.
To put it simply, it is possible for ANNs to fail at something and for us to succeed at the same thing.
- mtdewcmu 12y agoRight-- in the musculoskeletal system there are mechanisms that operate approximately like pulleys; so I think you can say "a person is a neural net" in exactly the same sense as you can say "a person is a pulley." Neural nets are models of systems that we see in the human body that have been simplified and adapted such that they can be used as tools. It's not clear what lessons about humans can be drawn from studying NNs.