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STDP performs stochastic EM to reveal the hidden causes of spatiotemporal spiking patterns AbstractSpike-timing dependent plasticity (STDP), in conjunction with a stochastic soft winner-take-all (WTA) circuit, induces spiking neurons to learn implicit internal models for subclasses (or “causes”) of the high-dimensional spike patterns of hundreds of pre-synaptic neurons. Our rigorous mathematical analysis shows that STDP is able to approximate a stochastic online Expectation-Maximization (EM) algorithm for modeling the input data.
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