Comment Re:That unique identifies marsh gas... (Score 1) 80
"We implemented a very simple algorithm to heuristically estimate whether a given ngerprint might be an evolved version of a ngerprint seen previously. [...] Excluding users whose ngerprints changed because they disabled javascript (a common case in response to visiting panopticlick.eff.org, but perhaps not so common in the real world), our heuristic made a correct guess in 65% of cases, an incorrect guess in 0.56% of cases, and no guess in 35% of cases. 99.1% of guesses were correct, while the false positive rate was 0.86%. Our algorithm was clearly very crude, and no doubt could be significantly improved with effort."