[CTN] Reminder: CTN seminar: Blake Richards (University of Toronto), 3:30 Tuesday Sept. 26, PAS 2464.

[Bryan Tripp]

Hi everyone,

Just a reminder about the seminar tomorrow.

Also, CTN graduate students are invited to lunch with the speaker. Please
meet in PAS 2464 at 11:30. Please contact Eric Hunsberger (
erichuns at gmail.com) with any questions about lunch.

Regards,
Bryan


On Tue, Sep 12, 2017 at 11:48 PM, Bryan Tripp <bptripp at gmail.com> wrote:

> Hi everyone,
>
> Please join us for the first CTN seminar of the season, with Professor
> Blake Richards. The title and abstract follow.
>
> Regards,
> Bryan
>
> Title: Deep learning with pyramidal neurons
>
> Abstract:
> Deep learning has led to significant advances in artificial intelligence,
> in part, by adopting strategies motivated by neurophysiology. However, it
> is unclear how deep learning could occur in the real brain, due to the
> difficulty of performing credit assignment without backpropagation. Here,
> we show that deep learning can be achieved in a biologically feasible
> simulation by moving away from point neuron models and towards
> multi-compartment neurons. Like neocortical pyramidal neurons, neurons in
> our model receive feedforward sensory information and higher-order feedback
> in electrotonically segregated compartments. Thanks to this segregation,
> the neurons in different layers of the network can coordinate local
> synaptic weight updates to achieve global optimization. As a result, the
> network can take advantage of multilayer architectures---the hallmark of
> deep learning. This work demonstrates that deep learning can be achieved
> using segregated dendritic compartments for feedforward and feedback
> information, which may help to explain the dendritic morphology of
> neocortical pyramidal neurons.
>
>
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