Кто стучится в дверь ко мне? Человек или робот?

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????, ???????? ??????? ???????? ???????? (??????? ?????? ?? ???? ????????):

HIP coded key

?? ?????????? ?????? ????? ?? ?????????, ????? ?????????? ?? ???????? ? ?????? ???????, ??????? ????? ????????????? ???????????? ???????? ????? ??? ???????? ?????, ???????? ??????????, ? ?????? ? ?????? ?????????? ?????.

?????? ??? ???????? ?????????? ?????? ? Communications of the ACM "???? ? ?????? ????? ?? ???????? ????" ("Spam and the Ongoing Battle for the Inbox", Februrary 2007, Vol. 50, No. 2, pp. 25-33.) ? ?????????, ??? ??????????? ?????????? ????????????, ??????????? ??????????? Microsoft Live Labs ??????? ?????????? ? ??? ????????? ? Microsoft Research. ???????????? ????????? ?????? ??????????? ??????????? ???????????? "???????" ??? ? ???????? ? ? ?????????? ?? ???? ??????????? ????????? ???????????. ???, ??? LW ("local wrap" - "????????? ????????") ???? 20 ? ???????, ? ????????? ???????????? ???????? ????????? ????? ??????????? ??? ???????. ? ?????? ????? ??????????.. ??? LW 80 (?????? ???? ????????????) ???????? ????????????? ??????????? ????? ???? ?? ????????? (?????? ????) ?????????, ? ??? ???????? ????????????? ????????? - ????? ?? 50%...

???????, ??? HIP (??? ????? ?????????? ???????? ? ?????) ????? ?????????? ??? "????????? ?????????????????? ??????? ???? ????? ???????? ???????? ?? ??????????" (??? ??????, "completely automated public Turing test to tell computers and humans apart" ??? CAPTCHA). ??????????????, ??? ???? ????? ?????? ?????????? ?????, ? ?????????? - ???. ??????????? ??? ?? ?????? ?????? ? ????? ????? ?????? ???????? ?? ?????, ??? ?? ???????????. ? ????????, ??? ????????? ????? ???????? ?????? Submit ?? ?????-????? ??? ??????? ????????, ?????????? ?????? ???????.