OxTalks is Changing
OxTalks will soon be transitioning to Oxford Events (full details are available on the Staff Gateway). A two-week publishing freeze is expected in early Hilary to allow all events to be migrated to the new platform. During this period, you will not be able to submit or edit events on OxTalks. The exact freeze dates will be confirmed as soon as possible.
If you have any questions, please contact halo@digital.ox.ac.uk
Gradient-free stochastic optimization
This talk will deal with optimization problems in a statistical learning setup where the learner has no access to unbiased estimators of the gradient of the objective function. It includes stochastic optimization with zero-order oracle, continuum bandit and contextual continuum bandit problems. I’ll give an overview of recent results on minimax optimal algorithms and fundamental limits for these problems.
Date:
6 June 2025, 15:00
Venue:
Mathematical Institute, Woodstock Road OX2 6GG
Venue Details:
L1, Mathematical Institute, Andrew Wiles Building
Speaker:
Professor Alexandre Tsybakov (CREST-ENSAE Paris)
Organising department:
Department of Statistics
Organisers:
Patrick Rebeschini (Department of Statistics, University of Oxford),
Beverley Lane (Department of Statistics, University of Oxford),
Professor Simon Myers (University of Oxford)
Organiser contact email address:
events@stats.ox.ac.uk
Hosts:
Professor Christl Donnelly (University of Oxford),
Patrick Rebeschini (Department of Statistics, University of Oxford),
Professor Simon Myers (University of Oxford)
Part of:
Annual Joint Maths/Stats Colloquium
Booking required?:
Required
Booking url:
https://www.stats.ox.ac.uk/events/maths-stats-colloquium-professor-alexandre-tsybakov
Booking email:
events@stats.ox.ac.uk
Cost:
Free of charge
Audience:
Members of the University only
Editor:
Beverley Lane
