Stylometry is a hard task to be performed by humans and by computers... I've studied it for a while (master degree and PhD), and while we could have some succes

Stylometry is a hard task to be performed by humans and by computers... I've studied it for a while (master degree and PhD), and while we could have some success (>80% in verifying the authorship of a document against 100 authors), I think that it would be hard to make judgements solely based on a percentage below 99.9999%. OTOH, perhaps I should begin to study this matter again :-)