Please note that the list below only shows forthcoming events, which may not include regular events that have not yet been entered for the forthcoming term. Please see the past events page for a list of all seminar series that the department has on offer.
Thu, 13 Jun 2024
16:00
16:00
L4
TBC
Dr Ivan Guo
(Monash University, Melbourne)
Further Information
Please join us for reshments outside the lecture room from 1530.
Fri, 14 Jun 2024
14:00 -
15:00
L3
Fri, 14 Jun 2024
15:00 -
16:00
L5
The bifiltration of a relation, extended Dowker duality and studying neural representations
Melvin Vaupel
(Norweign University of Science and Technology)
The join button will be published 30 minutes before the seminar starts (login required).
Abstract
To neural activity one may associate a space of correlations and a space of population vectors. These can provide complementary information. Assume the goal is to infer properties of a covariate space, represented by ochestrated activity of the recorded neurons. Then the correlation space is better suited if multiple neural modules are present, while the population vector space is preferable if neurons have non-convex receptive fields. In this talk I will explain how to coherently combine both pieces of information in a bifiltration using Dowker complexes and their total weights. The construction motivates an interesting extension of Dowker’s duality theorem to simplicial categories associated with two composable relations, I will explain the basic idea behind it’s proof.
Tue, 19 Nov 2024
16:00
16:00