Lucien PLANTEFOL 1891–1983

Statistical estimation with model selection Lucien

The purpose of this paper is to explain the interest and importance of (approximate) models and model selection in Statistics. Starting from the very elementary example of histograms we present a general notion of finite dimensional model for statistical estimation and we explain what type of risk bounds can be expected from the use of one such model. We then give the performance of suitable mo...

Jacques Lucien Monod, 9 February 1910--31 May 1976.

Se p 20 06 Model selection for Poisson processes Lucien

Our purpose in this paper is to apply the general methodology for model selection based on T-estimators developed in Birgé (2006a) to the particular situation of the estimation of the unknown mean measure of a Poisson process. We introduce a Hellinger type distance between finite positive measures to serve as our loss function and we build suitable tests between balls (with respect to this dist...

Lucien Howe, hereditary blindness, and the eugenics movement.

Ophthalmologists admire Lucien Howe, MD (1848-1928) (Figure 1), for his leadership and philanthropy. During his presidency of the American Ophthalmological Society (AOS), the organization established an award for contributions to ophthalmology, now known as the Howe Medal (Figure 2), one of the highest honors in the specialty. In addition, there are 2 other Howe Medals and a Howe Award, each of...

Lucien Cote for the determination of the patient ' s CSF HVA level

The young age of the patient, appearance of his symptoms after a stroke, spontaneous improvement unrelated to treatment, lucencies seen on CT within the basal ganglia, and a relatively high level of HVA in cerebrospinal fluid, higher than usually seen in idiopathic Parkinson's disease,9 are in favour of this diagnosis. Other causes of Parkinsonism, such as normal pressure hydrocephalus or neuro...