Search Results for author: Clément Dombry

Found 6 papers, 0 papers with code

A new methodology to predict the oncotype scores based on clinico-pathological data with similar tumor profiles

no code implementations13 Mar 2023 Zeina Al Masry, Romain Pic, Clément Dombry, Christine Devalland

This methodology can be used particularly to identify the patients of the training cohort that share similarities with the new patient and to predict an estimate of the distribution of the ODX score.

Decision Making

Distributional regression and its evaluation with the CRPS: Bounds and convergence of the minimax risk

no code implementations9 May 2022 Romain Pic, Clément Dombry, Philippe Naveau, Maxime Taillardat

Numerous state-of-the-art statistical postprocessing techniques are based on distributional regression evaluated with the Continuous Ranked Probability Score (CRPS).

regression

Infinitesimal gradient boosting

no code implementations26 Apr 2021 Clément Dombry, Jean-Jil Duchamps

We define infinitesimal gradient boosting as a limit of the popular tree-based gradient boosting algorithm from machine learning.

Hidden regular variation for point processes and the single/multiple large point heuristic

no code implementations12 Feb 2021 Clément Dombry, Charles Tillier, Olivier Wintenberger

We consider regular variation for marked point processes with independent heavy-tailed marks and prove a single large point heuristic: the limit measure is concentrated on the cone of point measures with one single point.

Point Processes Probability

Behavior of linear L2-boosting algorithms in the vanishing learning rate asymptotic

no code implementations29 Dec 2020 Clément Dombry, Youssef Esstafa

We investigate the asymptotic behaviour of gradient boosting algorithms when the learning rate converges to zero and the number of iterations is rescaled accordingly.

A Semi-Definite Programming approach to low dimensional embedding for unsupervised clustering

no code implementations29 Jun 2016 Stéphane Chrétien, Clément Dombry, Adrien Faivre

This paper proposes a variant of the method of Gu\'edon and Verhynin for estimating the cluster matrix in the Mixture of Gaussians framework via Semi-Definite Programming.

Clustering

Cannot find the paper you are looking for? You can Submit a new open access paper.