Large scale statistical analysis of GEO datasets
  The problem addressed here is that of simultaneous treatment of several gene expression datasets, possibly collected under different experimental conditions and/or platforms. Using robust statistics, a large scale statistical analysis has been conducted over $20$ datasets downloaded from the Gene Expression Omnibus repository. The differences between datasets are compared to the variability inside a given dataset. Evidence that meaningful biological information can be extracted by merging different sources is provided. 
Bernard Ycart (LJK), Konstantina Charmpi (LJK), Sophie Rousseaux,   Jean-Jacques Fourni\'e (CRCT)
stat.ME q-bio.GN