Changes in the Médiamétrie Executive Committee

Communiqué de presse
Aurélie Vanheuverzwyn and Julien Rosanvallon are coming onto the Médiamétrie Executive Committee.
Starting 4 September, the Médiamétrie Executive Committee will welcome two new members: Vanheuverzwyn, Médiamétrie’s Data Science Director, and Rosanvallon, Digital and TV Director. Both are appointed Executive Directors. With this change, the Executive Committee around Bruno Chetaille, Chairman and CEO of Médiamétrie, will be composed as follows: Benoît Cassaigne – Executive Vice President Laurent Battais – Executive Vice President – Performance, cross media & EurodataTV Bernard Chesnet – Executive Vice President - Technologies & Operations Philippe Tassi – Executive Vice President - Quality & Security, Scientist Charles Juster – Senior Vice President – Head of Communication & Key accounts Julien Rosanvallon – Senior Vice President TV & Online Aurélie Vanheuverzwyn – Senior Vice President – Data Science Biographical items: Born in 1976, graduating from Paris Dauphine with an MSG (Master of Management Sciences) and a Master’s from IEP in Paris, Julien Rosanvallon began his career at Wanadoo Régie (Orange), as Manager of Research and Digital Media Evangelizing (creative lab). Rosanvallon is also the author of two works on digital media: E-Communication (Editions DUNOD, 2001) and Dix Ans d’aventure Internet (10 Years of Internet Adventures) (Editions Jacob Duvernet, 2007). Coming to Médiamétrie in 2003, Rosanvallon directed the Médiamétrie // NetRatings subsidiary until 2011, then the TV Department. Since the end of 2016, he has also headed up Médiamétrie’s Internet Department. Born in 1975, and graduating from ENSAI (French National School of Statistics and Information Analysis), Aurélie Vanheuverzwyn joined Médiamétrie’s Science Department in 1999. Next, she moved to the Digital and New Media Department, where in particular she worked on the Médiametrie//NetRatings web user panel, and Médiamétrie’s site-centric measurement tool eStat. Then she joined the Science Department in 2003. In 2008, Vanheuverzwyn was appointed the Director for the Scientific Methods and Analyses Department, which is now the Data Science Department. She is Vice President of the Surveys, Models and Applications group in the French Statistics Society (SFds) and an elected member of the International Statistical Institute (ISI). In addition, she regularly participates in data science and survey conferences in France and abroad. Please click on the icon to download the comprehensive press release.

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Confidence interval calculus

Taille de l'échantillon ou d'une cible dans l'échantillon

n =

Proportion observée dans l'échantillon ou sur une cible dans l'échantillon

p =

%

Attention : ne s'applique qu'à une proportion. Le Taux Moyen est une moyenne de proportions et la Part d'audience un rapport de proportions.
Cet outil est donné à titre indicatif. Il ne saurait pouvoir s'appliquer sans autres précautions à des fins professionnelles.

Test of significance of the differences between two proportions

Permet d'évaluer si la différence entre 2 proportions est significative au seuil de 95%

Proportion

Taille de l'échantillon

Échantillon 1

%

Échantillon 2

%

Attention : ne s'applique qu'à une proportion. Le Taux Moyen est une moyenne de proportions et la Part d'audience un rapport de proportions.
Cet outil est donné à titre indicatif. Il ne saurait pouvoir s'appliquer sans autres précautions à des fins professionnelles.

En complément