This clearly indicates that interference effects from one source language might be misleading when used to identify translations from a different language.
for example, in the Finnish corpus, the word me is a strong indicator of original English (constituting 0.0003 of tokens in texts translated from Finnish as opposed to 0.0015 of tokens in original English texts), but in the German corpus, me is an indicator of translated text (constituting 0.0020 of tokens in text translated from German).