Salisbury Crags and Arthur's Seat

photo: Edinburgh city centre - view from Calton Hill

The age of "big data" is here: data of unprecedented sizes is becoming ubiquitous, which brings new challenges and new opportunities. With this comes the need to solve optimization problems of unprecedented sizes. Machine learning, compressed sensing, social network science and computational biology are some of many prominent application domains where it is increasingly common to formulate and solve optimization problems with billions of variables. Classical algorithms are not designed to scale to instances of this size and hence new approaches are needed. These approaches utilize novel algorithmic design involving tools such as distributed and parallel computing, randomization, asynchronicity, decomposition, sketching and streaming. This workshop aims to bring together researchers working on novel optimization algorithms and codes capable of working in the Big Data setting.

Previous editions of the workshop:

> Optimization and Big Data 2013
> Optimization and Big Data 2012


Anyone interested in the newest developments in big data optimization algorithms, theory and applications.

Invited Speakers

Patrick Louis Combettes (Paris 6)
Jonathan Eckstein (Rutgers)
Garud Iyengar (Columbia)
Martin Jaggi (ETH Zurich)
Rodolphe Jenatton (Amazon Berlin)
Jakub Konecny (Edinburgh)
Francois Glineur (Louvain)
Donald Goldfarb (Columbia)
Robert Gower (Edinburgh)
Arkadi Nemirovski (Georgia Tech) - keynote
Zheng Qu (Edinburgh) - organizer
Peter Richtarik (Edinburgh) - organizer
Katya Scheinberg (Lehigh)
Mark Schmidt (UBC)

Contributed Deluxe Posters and Spotlight Talks

The workshop also invites the submission of contributed abstracts (up to 1000 characters, sent as pure text via email). All accepted abstracts will be presented in the form of deluxe posters and selected abstracts will in addition be given the space of 5 minutes for a spotlight oral talk.

There will be a Best Contribution Award for the best spotlight talk and poster combination. The award is sponsored by UoE (Amazon Berlin). Award committee: Prof Arkadi Nemirovski (Georgia Institute of Technology) and Dr Rodolphe Jenatton (Amazon Berlin).

Best Contribution Award

Winner: Rodrigo Mendoza-Smith (University of Oxford)
for "Expander l0 decoding" [slides] [poster] [paper]


Runner-up (2nd place): Dominik Csiba (University of Edinburgh)
for "Stochastic dual coordinate ascent with adaptive probabilites" [slides] [poster] [paper]



April 18, 2015: Submission deadline for abstracts
Submit to:

April 18, 2015: Early Bird registration

April 20, 2015: Notification of acceptance of contributed abstracts
Acceptance of abstracts will be done on a rolling basis. If you want to get confirmation of acceptance sooner to help you plan for the event, submit sooner.

April 25, 2015: Submission deadline for deluxe posters
Submit to:
All posters will be put online prior to the start of the event.


Registration is now open. Early bird registration deadline is on April 18, 2015. The Early Bird fee is £30; and it is £45 afterwards. If you also want to present your work, then in addition to registering, submit an abstract (read the instructions above).

Eventbrite - Optimization and Big Data 2015


A booklet with the programme and other useful information can be downloaded by clicking on this image:

Optimization and Big Data 2015 booklet