123 citations · 480 across the 32 of their papers we have counts for
8 papers · 1 filter
A conversion theorem and minimax optimality for continuum contextual bandits
Arya Akhavan, Karim Lounici, Massimiliano Pontil +1
We study the contextual continuum bandits problem, where the learner sequentially receives a side information vector and has to choose an action in a convex set, minimizing a funct…
Learning the Infinitesimal Generator of Stochastic Diffusion Processes
Vladimir R. Kostic, Karim Lounici, Helene Halconruy +2
We address data-driven learning of the infinitesimal generator of stochastic diffusion processes, essential for understanding numerical simulations of natural and physical systems.…
Consistent Long-Term Forecasting of Ergodic Dynamical Systems
Prune Inzerilli, Vladimir Kostic, Karim Lounici +2
We study the evolution of distributions under the action of an ergodic dynamical system, which may be stochastic in nature. By employing tools from Koopman and transfer operator th…
Multi-task Representation Learning with Stochastic Linear Bandits
Leonardo Cella, Karim Lounici, Grégoire Pacreau +1
We study the problem of transfer-learning in the setting of stochastic linear bandit tasks. We consider that a low dimensional linear representation is shared across the tasks, and…
Muddling Labels for Regularization, a novel approach to generalization
Karim Lounici, Katia Meziani, Benjamin Riu
Generalization is a central problem in Machine Learning. Indeed most prediction methods require careful calibration of hyperparameters usually carried out on a hold-out \textit{val…
Large scale Lasso with windowed active set for convolutional spike sorting
Laurent Dragoni, Rémi Flamary, Karim Lounici +1
Spike sorting is a fundamental preprocessing step in neuroscience that is central to access simultaneous but distinct neuronal activities and therefore to better understand the ani…