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Time constant issues with e-prop output learning rule #100

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neworderofjamie opened this issue Jun 26, 2024 · 0 comments

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neworderofjamie commented Jun 26, 2024

The e-prop output learning rule should use a presynaptic trace filtered with tau_out (kappa = e^(-dt/tau_out):

But, in our implementation it uses a presynaptic trace filtered with tau_mem. Fix should simply be to calculate kappa at https://github.com/genn-team/ml_genn/blob/master/ml_genn/ml_genn/compilers/eprop_compiler.py#L498 and pass this through to the learning rule.

neworderofjamie added bug e-prop labels

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