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Topic: supervised training

Seminar
2 seminars

In Artificial Intelligence and Computational Neuroscience

Seminar · Computational Neuroscience

Nonlinear computations in spiking neural networks through multiplicative synapses

M. Nardin · IST Austria

Wed, Nov 9, 2022 · 15:15 UTC

The brain efficiently performs nonlinear computations through its intricate networks of spiking neurons, but how this is done remains elusive. While recurrent spiking networks implementing linear computations can be directly derived and easily understood (e.g., in the spike coding network (SCN) framework), the connectivity required for nonlinear computations can be harder to interpret, as they require additional non-linearities (e.g., dendritic or synaptic) weighted through supervised training. Here we extend the SCN framework to directly implement any polynomial dynamical system. This results

Seminar · Machine Learning

On temporal coding in spiking neural networks with alpha synaptic function

Iulia M. Comsa · Google Research Zürich, Switzerland

Mon, Aug 31, 2020 · 14:55 UTC

The timing of individual neuronal spikes is essential for biological brains to make fast responses to sensory stimuli. However, conventional artificial neural networks lack the intrinsic temporal coding ability present in biological networks. We propose a spiking neural network model that encodes information in the relative timing of individual neuron spikes. In classification tasks, the output of the network is indicated by the first neuron to spike in the output layer. This temporal coding scheme allows the supervised training of the network with backpropagation, using locally exact derivati