Biography
Before joining KAUST in 2017, he was an Associate Professor of Mathematics at the University of Edinburgh, and held postdoctoral and visiting positions at Université Catholique de Louvain, Belgium, and University of California, Berkeley, USA, respectively. Richtárik obtained a Mgr. in Mathematics ('01) at Comenius University in his native Slovakia. In 2007, he received his Ph.D. in Operations Research from Cornell University, U.S. Dr. Richtarik is a founding member and a Fellow of the Alan Turing Institute (UK National Institute for Data Science and Artificial Intelligence), and an EPSRC Fellow in Mathematical Sciences.
A number of honors and awards have been conferred on Dr. Richtárik, including:
- the Best Paper Award at the NeurIPS 2020 Workshop on Scalability, Privacy, and Security in Federated Learning (joint with S. Horvath);
- the Charles Broyden Prize, a Distinguished Speaker Award at the 2019 International Conference on Continuous Optimization, the SIAM SIGEST Best Paper Award (joint with O. Fercoq);
- the IMA Leslie Fox Prize (second prize, three times, awarded to two of his students and a postdoc);
- the SIAM SIGEST Best Paper Award (joint award with Professor Olivier Fercoq);
- the IMA Leslie Fox Prize (Second prize: M. Takáč 2013, O. Fercoq 2015 and R. M. Gower 2017);
- the INFORMS Computing Society Best Student Paper Award (sole runner-up: M. Takáč);
- the EUSA Award for Best Research or Dissertation Supervisor (Second Prize), 2016;
- and the Turing Fellow Award from the Alan Turing Institute, 2016.
Before joining KAUST, he was nominated for the Chancellor’s Rising Star Award from the University of Edinburgh in 2014, the Microsoft Research Faculty Fellowship in 2013, and the Innovative Teaching Award from the University of Edinburgh in 2011 and 2012.
Dr. Richtárik has given more than 150 research talks at conferences, workshops and seminars worldwide. And several of his works are among the most read papers published by the SIAM Journal on Optimization and the SIAM Journal on Matrix Analysis and Applications.
Dr. Richtárik regularly serves as an Area Chair for leading machine learning conferences, including NeurIPS, ICML and ICLR, and is an Action Editor of the Journal of Machine Learning Research (JMLR), Associate Editor of Optimization Methods and Software and Numerische Mathematik, and a Handling Editor of the Journal of Nonsmooth Analysis and Optimization. In the past, he served as an Action Editor of Transactions of Machine Learning Research and an Area Editor of Journal of Optimization Theory and Applications. He was an Area Chair for ICML 2019 and a Senior Program Committee Member for IJCAI 2019. And he is an Associate Editor of Optimization Methods and Software and a Handling Editor of the Journal of Nonsmooth Analysis and Optimization.
Research Interests
Professor Richtárik’s research interests lie at the intersection of mathematics, computer science, machine learning, optimization, numerical linear algebra, and high-performance computing. Through his work on randomized and distributed optimization algorithms, he has contributed to the foundations of machine learning, optimization and randomized numerical linear algebra. He is one of the original developers of Federated Learning – a new subfield of artificial intelligence whose goal is to train machine learning models over private data stored across a large number of heterogeneous devices, such as mobile phones or hospitals, in an efficient manner, and without compromising user privacy. In an October 2020 Forbes article, and alongside self-supervised learning and transformers, Federated Learning was listed as one of three emerging areas that will shape the next generation of Artificial Intelligence technologies.
His recent work on randomized optimization algorithms—such as randomized coordinate descent methods, stochastic gradient descent methods, and their numerous extensions, improvements and variants)—has contributed to the foundations and advancement of big data optimization, randomized numerical linear algebra and machine learning.