INVESTIGADORES
FLESIA Ana Georgina
congresos y reuniones científicas
Título:
A distance based test on random trees
Autor/es:
ANA GEORGINA FLESIA; RICARDO FRAIMAN
Lugar:
Córdoba
Reunión:
Congreso; MACI 2007 I CONGRESS ON COMPUTATIONAL, INDUSTRIAL AND APPLIED MATHEMATICS; 2007
Institución organizadora:
FaMAF- UNC y Sociedad Argentina de Mecánica Computacional
Resumen:
In this talk, we address the question of comparison between populations of trees. We study an statistical test based on the distance between empirical mean trees, as an analog of the two sample Z statistic for comparing means of two gaussian distributed populations. Despite its simplicity, we can report that the test is quite powerful to separate distributions with different means but it does not distinguish between different populations with the same mean tree. In this case, we suggest to apply a more complicated test, the BFFS test, if the problem allows its computation. The performance of the distance test is studied via simulations on Galton-Watson branching processes. We also show an application to a real data problem in genomics.
