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Spam detection for social networks: best practices (Part 1)

  1. Provide mandatory questions on sign-up, some requiring typing actual text. Example: What is your favorite data mining software?
  2. Do not allow new members to use your social network e-mail functionality right away. Grant email access after 48 or 72 hours.
  3. Do not allow members to reach  more than 20 other members per day, via email.
  4. Captcha on sign-up form.
  5. Have new members confirm their email address.
  6. Let members refuse to receive email from others members, if they wish.
  7. Do not allow posting on a member's wall (member profile page).
  8. Individually approve or reject all applications  for membership, based on email address, country and answers provided to sign-up questions. 
  9. Suspicious sign-ups: do a search on the applicant's name, email address, and his submitted bio before approving membership.

Download my PowerPoint presentation on this subject.

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Comment by Vincent Granville on May 31, 2012 at 9:10pm

I just added my PowerPoint presentation. Feel free to download it, it was presented at the Text Analytics Summit in 2011.

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