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A comment on Machine-Learning Maestro Michael Jordan on the Delusions of Big Data and Others. Parent comment

Re:Machine-Learning Maestro Michael Jordan on the Delusions ... by robg on Monday October 20, 2014 @10:58PM (#8485718)
The brain could, and likely does, individual neurons do not. Synaptic current only travels in one direction.
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Re:Machine-Learning Maestro Michael Jordan on the Delusions ... by blennon on Tuesday October 21, 2014 @12:03AM (#8485854)
This is not entirely correct. There is a lot of evidence that action potentials backpropagate into the dendrites [1]. On a local level, this allows synapses on the dendrites to "be aware" of the activity of the post-synaptic neuron. However, I do not think this accomplishes/implements the ANN backpropagation algorithm (although a few statements and a citation in [1] alludes to this being possible).

[1] http://en.wikipedia.org/wiki/Neural_backpropagation

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Re:Machine-Learning Maestro Michael Jordan on the Delusions ... by robg on Tuesday October 21, 2014 @05:42PM (#8490254)
Yes, that is a very interesting complication to the standard model.
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