Hans Muller, 18/01/2016 14:52:
As far as i can see, the API does not answer the bounce question.
The API talks of pageviews https://wikitech.wikimedia.org/wiki/pageviews_API ; your question is IMHO the wrong one, i.e. "how can we estimate how many pageviews are real?". The real question is "how many times are the files actually seen?".
To answer the real question, you have to use mediacounts instead: https://wikitech.wikimedia.org/wiki/Analytics/Data/Mediacounts You can see an example at http://wiki.wikimedia.it/wiki/File:2015-10-beic-counts.ods The results are very similar to what baglama yields, for this specific case (BEIC media).
Nemo