activity
20192026
most citedNon-parametric Models for Non-negative Functions

12 citations · 25 across the 6 of their papers we have counts for

collaborators

8 papers

cs.AI2026

Training language models in simulation for psychiatric intake

Samuel Schmidgall, Tim Strother, Alex Bijamov +53

In psychiatric practice, the clinical intake interview remains a primary diagnostic instrument, requiring the clinician to establish rapport while disentangling complex, overlappin…

cs.LG2023★ 2 cited

SRATTA : Sample Re-ATTribution Attack of Secure Aggregation in Federated Learning

Tanguy Marchand, Régis Loeb, Ulysse Marteau-Ferey +2

We consider a cross-silo federated learning (FL) setting where a machine learning model with a fully connected first layer is trained between different clients and a central server…

math.OC2022★ 1 cited

Second order conditions to decompose smooth functions as sums of squares

Ulysse Marteau-Ferey, Francis Bach, Alessandro Rudi

We consider the problem of decomposing a regular non-negative function as a sum of squares of functions which preserve some form of regularity. In the same way as decomposing non-n…

cs.AI2021★ 1 cited

Sampling from Arbitrary Functions via PSD Models

Ulysse Marteau-Ferey, Francis Bach, Alessandro Rudi

In many areas of applied statistics and machine learning, generating an arbitrary number of independent and identically distributed (i.i.d.) samples from a given distribution is a…

math.OC2020

Finding Global Minima via Kernel Approximations

Alessandro Rudi, Ulysse Marteau-Ferey, Francis Bach

We consider the global minimization of smooth functions based solely on function evaluations. Algorithms that achieve the optimal number of function evaluations for a given precisi…

cs.LG2020★ 12 cited

Non-parametric Models for Non-negative Functions

Ulysse Marteau-Ferey, Francis Bach, Alessandro Rudi

Linear models have shown great effectiveness and flexibility in many fields such as machine learning, signal processing and statistics. They can represent rich spaces of functions…

math.OC2019★ 5 cited

Globally Convergent Newton Methods for Ill-conditioned Generalized Self-concordant Losses

Ulysse Marteau-Ferey, Francis Bach, Alessandro Rudi

In this paper, we study large-scale convex optimization algorithms based on the Newton method applied to regularized generalized self-concordant losses, which include logistic regr…

cs.LG2019★ 4 cited

Beyond Least-Squares: Fast Rates for Regularized Empirical Risk Minimization through Self-Concordance

Ulysse Marteau-Ferey, Dmitrii Ostrovskii, Francis Bach +1

We consider learning methods based on the regularization of a convex empirical risk by a squared Hilbertian norm, a setting that includes linear predictors and non-linear predictor…