Monday, 6 July 2020. 2:00pm - 3:30pm
The new Helmholtz International BigBrain Analytics Learning Laboratory HIBALL and Helmholtz AI Local at Forschungszentrum Jülich invite you to a talk by
Prof. Blake Richards
McGill University Montreal, Canada
Montreal Institute for Learning Algorithms (MILA)
Predictive cost functions in the neocortex
Neural computation is the product of two optimization procedures: natural selection and learning in the individual's lifetime. But, identifying what the neocortex has been optimized for, given its repeated circuit motifs and complex relationship to behaviour, is very challenging. Put another way, is it possible to say what cost functions have shaped the representations in the neocortex? Here, I will describe research in my laboratory aimed at answering this question. I will present both experimental and modelling data to show that the representations in the visual cortex of mice are likely shaped by a predictive cost functions - i.e. cost functions that promote the ability to predict the future given the past. I will discuss the potential implications of these results for AI, and argue that converging lines of evidence from multiple fields indicate that predictive cost functions are key to intelligent behaviour, whether in natural or artificial agents.
Blake Richards is an Assistant Professor in the School of Computer Science and the Montreal Neurological Institute at McGill University and a Core Faculty Member at Mila. From 2014 to July 2019 he was an Assistant Professor at the University of Toronto in the Department of Biological Sciences (Scarborough) with a cross-appointment to the Department of Cell and Systems Biology and a Faculty Affiliation at the Vector Institute. He was the 2019 Canadian Association for Neuroscience Young Investigator Award Recipient, and one of 29 Canadian Institute for Advanced Research (CIFAR) Canada AI Chairs announced in 2018. He is also a Fellow of the CIFAR Learning in Machines and Brains Program, and a Lab Scientist with the Creative Destruction Lab. From October 2011 to December 2013, Dr. Richards was a Banting Postdoctoral Fellow in the laboratory of Dr. Paul Frankland at SickKids Hospital, where he studied memory consolidation and neural plasticity. From 2007 to 2010, he was a Welcome Trust 4-year PhD student at the University of Oxford in the Department of Pharmacology with Dr. Colin Akerman, where he explored synaptic plasticity in Xenopus laevis embryos. During the MSc component of the program he worked with Dr. Wyeth Bair and Dr. Ole Paulsen, studying computational models of visual processing and voltage bistability in neocortical dendrites. Before his graduate studies, he worked as a programmer and research analyst in magnetic resonance imaging at the Centre for Addiction and Mental Health from 2004-2006. Dr. Richards received his Bachelors degree in Cognitive Science and Artificial Intelligence from the University of Toronto in 2004.
Admission to this event is free but registration is mandatory. The link to the meeting will be sent out shortly before the meeting by email.
The lecture will be held in English.
Invitation to this lecture by
Prof. Dr Katrin Amunts & Prof. Dr Dr Thomas Lippert
on behalf of the Scientific and Technical Council of Forschungszentrum Jülich