Question

How calcupate energy fuction in hopfield network?

Answer 1

Energy Landscape of a Hopfield Network, highlighting the current state of the network (up the hill), an attractor state to which it will eventually converge, a minimum energy level and a basin of attraction shaded in green. Note how the update of the Hopfield Network is always going down in Energy.


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Answer 2

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The energy function of a Hopfield network is a quadratic form. A Hopfield network always finds a local minimum of the energy function.