Élisabeth Gassiat (née Granier, born 1961) is a French

mathematical statistician Mathematical statistics is the application of probability theory and other mathematical concepts to statistics, as opposed to techniques for collecting statistical data. Specific mathematical techniques that are commonly used in statistics inc ...

whose research interests include

maximum likelihood estimation In statistics, maximum likelihood estimation (MLE) is a method of estimation theory, estimating the Statistical parameter, parameters of an assumed probability distribution, given some observed data. This is achieved by Mathematical optimization, ...

for

mixture model In statistics, a mixture model is a probabilistic model for representing the presence of subpopulations within an overall population, without requiring that an observed data set should identify the sub-population to which an individual observati ...

latent variable In statistics, latent variables (from Latin: present participle of ) are variables that can only be inferred indirectly through a mathematical model from other observable variables that can be directly observed or measured. Such '' latent va ...

s, high-dimensional structured data, the relation between statistics and

coding theory Coding theory is the study of the properties of codes and their respective fitness for specific applications. Codes are used for data compression, cryptography, error detection and correction, data transmission and computer data storage, data sto ...

, and the statistics of sequence data over finite alphabets. She is a professor at

Paris-Sud University Paris-Sud University (), also known as the University of Paris — XI (or as the Orsay Faculty of Sciences, University of Paris before 1971), was a French research university distributed among several campuses in the southern suburbs of Paris, ...

Education and career

Gassiat was born in 1961 in Paris. She was a student at the

École polytechnique (, ; also known as Polytechnique or l'X ) is a ''grande école'' located in Palaiseau, France. It specializes in science and engineering and is a founding member of the Polytechnic Institute of Paris. The school was founded in 1794 by mat ...

from 1980 to 1983. In 1987 she completed a Ph.D. through

with the dissertation ''Blind deconvolution'' supervised by Didier Dacunha-Castelle. After serving as an assistant at the

Institut national agronomique Paris Grignon The Institut National Agronomique Paris-Grignon (; INA P-G) was a French university-level institution of grande école-type. It offered master's degree in agricultural- and life sciences. It was created in 1971 by merging the ''Institut national a ...

from 1987 to 1988, she became an assistant professor at Paris-Sud University from 1988 to 1993. From 1993 to 1998 she was a professor at the

University of Évry Val d'Essonne A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Univ ...

. She returned to Paris-Sud University in 1998, taking her present position as a professor there.

Recognition

Gassiat became a senior member of the

Institut Universitaire de France The Institut Universitaire de France (IUF, Academic Institute of France), is a service of the French Ministry of Higher Education that annually distinguishes a small number of university professors for their research excellence, as evidenced by t ...

in 2020. She was named a knight of the

Legion of Honour The National Order of the Legion of Honour ( ), formerly the Imperial Order of the Legion of Honour (), is the highest and most prestigious French national order of merit, both military and Civil society, civil. Currently consisting of five cl ...

in 2013, and an officer of the Legion of Honour in 2023. A three-day conference in honor of Gassiat's 62nd birthday was held at the Institut de Mathématique d'Orsay in 2023.

Book

Gassiat is the author of the book ''Universal Coding and Order Identification by Model Selection Methods'' (Springer Monographs in Mathematics, 2018, translated by Anna Ben-Hamou from a 2014 French edition).

References

External links

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{{DEFAULTSORT:Gassiat, Elisabeth 1961 births Living people French mathematicians French statisticians French women statisticians Mathematical statisticians Paris-Sud University alumni Academic staff of Paris-Sud University Officers of the Legion of Honour