| 11. | The defendants also used technology designed to avoid AOL's spam filtering mechanisms.
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| 12. | Spam filtering imports users'address books to compile a whitelist of allowed senders.
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| 13. | Spam filtering uses technologies Symantec acquired from Brightmail.
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| 14. | This difficulty is why feature hashing has been tried for spam filtering at Yahoo!
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| 15. | Other features include a personal firewall, email spam filtering, and phishing protection.
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| 16. | A low number of false negatives is an indicator of the efficiency of spam filtering.
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| 17. | Other features included were a personal firewall, email spam filtering, and phishing protection.
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| 18. | Spam filtering software based on this formula is sometimes referred to as a naive Bayes classifier.
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| 19. | We can already block IP addresses, which serves as a basic form of spam filtering.
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| 20. | It is one of the oldest ways of doing spam filtering, with roots in the 1990s.
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