Zobrazeno 1 - 10
of 422
pro vyhledávání: '"COMMENGES, DANIEL"'
Publikováno v:
The R Journal (2021)
Implementations in R of classical general-purpose algorithms for local optimization generally have two major limitations which cause difficulties in applications to complex problems: too loose convergence criteria and too long calculation time. By re
Externí odkaz:
http://arxiv.org/abs/2009.03840
Autor:
Commenges, Daniel, Prague, Mélanie
We consider the problem of defining the effect of an intervention on a time-varying risk factor or treatment for a disease or a physiological marker; we develop here the latter case. So, the system considered is $(Y,A,C)$, where $Y=(Y_t)$, is the mar
Externí odkaz:
http://arxiv.org/abs/1907.12804
Autor:
Commenges, Daniel
Several approaches to causal inference from observational studies have been proposed. Since the proposal of Rubin (1974) many works have developed a counterfactual approach to causality, statistically formalized by potential outcomes. Pearl (2000) ha
Externí odkaz:
http://arxiv.org/abs/1905.01195
Autor:
Taddé, Bachirou O., Jacqmin-Gadda, Hélène, Dartigues, Jean-François, Commenges, Daniel, Proust-Lima, Cécile
Publikováno v:
Biometrics . 2020 Sep;76(3):886-899
Alzheimer's disease gradually affects several components including the cerebral dimension with brain atrophies, the cognitive dimension with a decline in various functions and the functional dimension with impairment in the daily living activities. U
Externí odkaz:
http://arxiv.org/abs/1806.03659
Autor:
Commenges, Daniel
The stochastic system approach to causality is applied to situations where the risk of death is not negligible. This approach grounds causality on physical laws, distinguishes system and observation and represents the system by multivariate stochasti
Externí odkaz:
http://arxiv.org/abs/1610.01869
Combination Antiretroviral Therapy (cART) succeeds to control viral replication in most HIV infected patients. This is normally followed by a reconstitution of the CD4$^+$ T cells pool; however, this does not happen for a substantial proportion of pa
Externí odkaz:
http://arxiv.org/abs/1602.05399
Autor:
Commenges, Daniel
We give an overview of the role of information theory in statistics, and particularly in biostatistics. We recall the basic quantities in information theory; entropy, cross-entropy, conditional entropy, mutual information and Kullback-Leibler risk. T
Externí odkaz:
http://arxiv.org/abs/1511.00860
This work studies the statistical properties of the maximum penalized likelihood approach in a semi-parametric framework. We recall the penalized likelihood approach for estimating a function and review some asymptotic results. We investigate the pro
Externí odkaz:
http://arxiv.org/abs/1401.7893
A general framework is that the estimators of a distribution are obtained by minimizing a function (the estimating function) and they are assessed through another function (the assessment function). The estimating and assessment functions generally e
Externí odkaz:
http://arxiv.org/abs/1206.1753