“…This approach addresses the problems of (1) heterogeneity (semantics, formats) of collected data and the corresponding learning contexts, (2) strong coupling between data formats and analysis tools, and (3) non-reproducibility of previous analyses. Existing approaches ( [5], [7], [10], [11], [12]) propose a unique representation of the data to be shared and possibly analyzed using a set of available analysis tools. In order to use the services provided by existing sharing platforms, users have to do a preliminary work of conversion to format data according to the chosen representation.…”