ROYER Clément

Optimization

Dauphine - PSL

clement.royer [at] dauphine.psl.eu

Short bio

Clément Royer is an associate professor of computer science at Université Paris Dauphine-PSL and a researcher in the MILES team at LAMSADE. From 2016 to 2019, he was a postdoctoral research associate at the Wisconsin Institute of Discovery, University of Wisconsin-Madison, USA. He received his Ph.D. in applied mathematics from the University of Toulouse, France, in 2016. Clément is a recipient of the COAP Best Paper Prize for 2019.

Topics of interest

Numerical optimization, Optimization for machine learning, Randomized algorithms.

Project in Prairie

As the amount of data available and the complexity of the models keep increasing, a number of issues arise in deploying optimization techniques for artificial intelligence at scale. Such challenges have long been integrated in high-performance computing, where the combination of optimization with other fields from numerical linear algebra to differential equations has led to powerful algorithms. This project aims at adopting a similar approach with optimization methods for data science.

Quote

My research aims at developing optimization methods for artificial intelligence that leverage existing methodology and advances from scientific computing along two axes. On one hand, we motivate the use of standard algorithmic frameworks for scientific computing in modern learning tasks by proposing practical schemes with complexity guarantees. Our research will aim at analyzing the complexity of classical second-order methods used in scientific computing so as to design frameworks with theoretical grounds and practical appeal for artificial intelligence. On the other hand, we develop derivative-free algorithms for automated parameter tuning of complex data science models. Our setting will be that of expensive, black-box systems for which a number of parameters require calibration.