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UID:6170@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20220131T150000
DTEND;TZID=Europe/Paris:20220131T160000
DTSTAMP:20241120T200927Z
URL:https://www.i2m.univ-amu.fr/evenements/two-sample-contamination-model-
 test/
SUMMARY:Pierre Vandekerkhove (LAMA\, Université Gustave Eiffel): Two-sampl
 e contamination model test.
DESCRIPTION:Pierre Vandekerkhove: In this talk we will consider two-compone
 nt mixture models having one single known component. This type of model is
  of particular interest when a known random phenomenon is contaminated by 
 an unknown random effect.\nWe propose in this setup to test the equality i
 n distribution of the unknown random sources involved in two separate samp
 les generated from such a model. For this purpose\, we introduce the so-ca
 lled IBM (Inversion-Best Matching) approach resulting in a tuning-free rel
 axed semiparametric Cramér-von Mises type two-sample test requiring minim
 al assumptions about the unknown distributions. The accomplishment of our 
 work lies in the fact\nthat we establish\, under some natural and interpre
 table mutual-identifiability conditions specific to the two-sample case\, 
 a functional central limit theorem about the proportion parameters along w
 ith the unknown cumulative distribution functions of the model. An intensi
 ve numerical study is carried out from a large range of simulation setups 
 to illustrate the asymptotic properties of our test. Finally\, our testing
  procedure\, implemented in the admix\nR package\, is applied to a real-li
 fe situation through pairwise post COVID-19 mortality excess profil testin
 g across a panel of European countries.\n&nbsp\;
ATTACH;FMTTYPE=image/jpeg:https://www.i2m.univ-amu.fr/wp-content/uploads/2
 021/11/Pierre_Vandekerkhove.jpg
CATEGORIES:Séminaire,Statistique
LOCATION:Saint-Charles - FRUMAM  (2ème étage)\, 3 Place Victor Hugo\, Mar
 seille\, 13003\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=3 Place Victor Hugo\, Marse
 ille\, 13003\, France;X-APPLE-RADIUS=100;X-TITLE=Saint-Charles - FRUMAM  (
 2ème étage):geo:0,0
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