[Lisa_seminaires] [mila-tous] Re: [teatalk-orgs] [Tea Talk] Dhruva Raman (Cambridge) Fri 19 April 2019 10h30 Mila Auditorium

Pablo Fonseca palefo at gmail.com
Ven 19 Avr 10:22:40 EDT 2019


And for those joinig remotely, the streaming link is
https://mila.bluejeans.com/4862024040/webrtc

Best,

Pablo Fonseca


On Fri, Apr 19, 2019 at 9:25 AM saikrishna gottipati <
saikrishnagv1996 at gmail.com> wrote:

> Gentle reminder, this talk is today at 10.30am
>
> Cheers
> The tea talk team
>
> On Mon, 15 Apr 2019, 10:08 saikrishna gottipati, <
> saikrishnagv1996 at gmail.com> wrote:
>
>> This week we have *Dhruva Raman* from *Univ of Cambridge *giving a talk
>> on  *Fundamental Bounds on Learning Performance in Neural Circuits *at
>> *10h30* on *19th April* in *Mila Auditorium*.
>>
>> If you are interested in* meeting Dhruva*, please book a slot in this google
>> sheet
>> <https://docs.google.com/spreadsheets/d/13k6e1rCDM1tD__MvxS-UDHMS9L6XsWcTvqs_atbmNRY/edit?usp=sharing>
>>
>> See you there!
>> The Tea Talk Team
>>
>> *TITLE*  Fundamental Bounds on Learning Performance in Neural Circuits
>>
>> *ABSTRACT*
>> Biological neural circuits learn in spite of imperfect information on
>> task performance and noisy biological components. How can these problems be
>> mitigated? We use optimization theory to show how adding apparently
>> redundant neurons and connections to a network can improve learning
>> performance in the face of imperfect learning rules and corrupted error
>> signals. The theory shows how large neural circuits can exploit additional
>> connectivity to achieve faster and more precise learning. However, there is
>> a limit to the benefit of adding connections. Biologically, synapses
>> (connections strengths) are intrinsically unreliable. We show that
>> excessive network size eventually outcompetes the benefits to learning
>> performance. Consequently, there is an optimal size of network for a given
>> task, which we can calculate in specific cases.
>>
>> *BIO*
>> Dhruva did his undergraduate (MMath) at the University of Warwick
>> (2008-2012), spent a year at the systems biology doctoral training centre
>> at the University of Oxford (2012-2013), and did his PhD in the Control
>> Group at the University of Oxford under the supervision of Antonis
>> Papachristodoulou (2013-2016). Since 2017 he has been a postdoc in the
>> control group at the University of Cambridge under the supervision of
>> Timothy O’Leary.
>>
>>
>>
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