Search Results for author: Robin Genuer

Found 8 papers, 2 papers with code

Random Forests for time-fixed and time-dependent predictors: The DynForest R package

no code implementations6 Feb 2023 Anthony Devaux, Cécile Proust-Lima, Robin Genuer

The R package DynForest implements random forests for predicting a continuous, a categorical or a (multiple causes) time-to-event outcome based on time-fixed and time-dependent predictors.

Random survival forests with multivariate longitudinal endogenous covariates

no code implementations11 Aug 2022 Anthony Devaux, Catherine Helmer, Robin Genuer, Cécile Proust-Lima

The individual event probability is estimated in each tree by the Aalen-Johansen estimator of the leaf in which the subject is classified according to his/her history of predictors.

Individual dynamic prediction of clinical endpoint from large dimensional longitudinal biomarker history: a landmark approach

1 code implementation2 Feb 2021 Anthony Devaux, Robin Genuer, Karine Pérès, Cécile Proust-Lima

We then applied the methodology in two prediction contexts: a clinical context with the prediction of death for patients with primary biliary cholangitis, and a public health context with the prediction of death in the general elderly population at different ages.

BIG-bench Machine Learning

Fréchet random forests for metric space valued regression with non euclidean predictors

no code implementations4 Jun 2019 Louis Capitaine, Jérémie Bigot, Rodolphe Thiébaut, Robin Genuer

Random forests are a statistical learning method widely used in many areas of scientific research because of its ability to learn complex relationships between input and output variables and also its capacity to handle high-dimensional data.

regression

Combining clustering of variables and feature selection using random forests

1 code implementation24 Aug 2016 Marie Chavent, Robin Genuer, Jerome Saracco

Numerical performances of the proposed approach are compared with direct applications of random forests and variable selection using random forests on the original p variables.

Statistics Theory Statistics Theory

Comments on: "A Random Forest Guided Tour" by G. Biau and E. Scornet

no code implementations6 Apr 2016 Sylvain Arlot, Robin Genuer

This paper is a comment on the survey paper by Biau and Scornet (2016) about random forests.

Random Forests for Big Data

no code implementations26 Nov 2015 Robin Genuer, Jean-Michel Poggi, Christine Tuleau-Malot, Nathalie Villa-Vialaneix

They are a powerful nonparametric statistical method allowing to consider in a single and versatile framework regression problems, as well as two-class and multi-class classification problems.

Clustering General Classification +2

Analysis of purely random forests bias

no code implementations15 Jul 2014 Sylvain Arlot, Robin Genuer

Under some regularity assumptions on the regression function, we show that the bias of an infinite forest decreases at a faster rate (with respect to the size of each tree) than a single tree.

regression

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