François Bellavance
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Cahiers du GERAD
The log-rank test is commonly used as the split function in many commonly used survival trees and forests algorithms. However, the log-rank test may have a...
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In this paper, we propose a multivariate random forest method for multiple responses of mixed types with missing responses. Imputation is performed for eac...
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This paper presents an extension of the well known random forest method to the case of clustered data. The proposed "mixed effects random forest" method is i...
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This paper presents the generalized mixed effects regression tree (GMERT) method, an extension of the mixed effects regression tree (MERT) methodology design...
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Tree based methods have not yet been adapted to handle mixed effects. Previous works extending them to accommodate correlated data are based on the multivari...
BibTeX referencePerformance of n-Grams for a Question Retrieval System in the Context of Approximated Spelling
Question retrieval systems, unlike question answering systems, exploit the knowledge contained in previously answered questions to answer new ones by returni...
BibTeX referenceMultivariate Mixed Decision Trees
In this paper, we propose a tree-based method for multivariate outcomes consisting in a mixture of categorical and continuous responses. The split function...
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In this paper, nonparametric tests are presented for the hypothesis of no direct treatment effects, as well as for the hypothesis of no carryover effects, f...
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In a research synthesis on the prognosis of depression, the outcome of interest has a multinomial distribution with the following typical categories: well, ...
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