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Pierre Geurts

3 accepted papers

2021

From global to local MDI variable importances for random forests and when they are Shapley values

NeurIPS 2021poster

Random forests have been widely used for their ability to provide so-called importance measures, which give insight at a global (per dataset) level on the relevance of input variables to predict a certain output. On the other hand, methods based on Shapley values have been introduced to refine the a…

2018

Random Subspace with Trees for Feature Selection Under Memory Constraints

AISTATS 2018poster

Dealing with datasets of very high dimension is a major challenge in machine learning. In this paper, we consider the problem of feature selection in applications where the memory is not large enough to contain all features. In this setting, we propose a novel tree-based feature selection approach t…

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