Equilibrium Propagation with Continual Weight Updates

ICLR 2020 Maxence ErnoultJulie GrollierDamien QuerliozYoshua BengioBenjamin Scellier

Equilibrium Propagation (EP) is a learning algorithm that bridges Machine Learning and Neuroscience, by computing gradients closely matching those of Backpropagation Through Time (BPTT), but with a learning rule local in space. Given an input $x$ and associated target $y$, EP proceeds in two phases: in the first phase neurons evolve freely towards a first steady state; in the second phase output neurons are nudged towards $y$ until they reach a second steady state... (read more)

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