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Conference papers

Sélection de groupes de variables corrélées par classification ascendante hiérarchique et group-lasso

Quentin Grimonprez 1 Alain Celisse 2, 1 Guillemette Marot 3, 1
1 MODAL - MOdel for Data Analysis and Learning
Inria Lille - Nord Europe, LPP - Laboratoire Paul Painlevé - UMR 8524, METRICS - Evaluation des technologies de santé et des pratiques médicales - ULR 2694, Polytech Lille - École polytechnique universitaire de Lille, Université de Lille, Sciences et Technologies
Abstract : In a context of variable selection, the use of penalized regressions in presence of high correlations might be problematic. Only a subset of the correlated variables is selected. Firstly aggregating related variables can help both for selection and interpretation. However, clustering methods require calibration of additional parameters. We will introduce a new method combining hierarchical clustering and group selection.
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Submitted on : Friday, December 4, 2015 - 3:30:27 PM
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Quentin Grimonprez, Alain Celisse, Guillemette Marot. Sélection de groupes de variables corrélées par classification ascendante hiérarchique et group-lasso. 47èmes Journées de Statistique, Jun 2015, Lille, France. ⟨hal-01238248⟩

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